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gaussdbmysql

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Reviewed-by: Wagner, Fabian <fabian.wagner@t-systems.com>
Co-authored-by: Ru, Li Yi <liyiru7@huawei.com>
Co-committed-by: Ru, Li Yi <liyiru7@huawei.com>
This commit is contained in:
Ru, Li Yi 2024-09-06 12:45:25 +00:00 committed by zuul
parent 1f3e1fa49f
commit f3715d9cc9
74 changed files with 905 additions and 469 deletions
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</th> </th>
</tr> </tr>
</thead> </thead>
<tbody><tr id="change_history__row379772773712"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p1079842711374">2024-04-15</p> <tbody><tr id="change_history__row89931654131311"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p36561193141">2024-08-08</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p97985277376">Modified the following content:</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><ul id="change_history__ul1551632812352"><li id="change_history__li5516152843520">Optimized the content in <a href="gaussdb_03_0069.html">Backup Space and Billing</a>.</li></ul>
<p id="change_history__p135661422371">Added <a href="gaussdb_03_0069.html">Backup Space and Billing</a>.</p> <ul id="change_history__ul109243081410"><li id="change_history__li7483194611413">Added <a href="gaussdbformysql_03_0120.html">Database Management</a>.</li><li id="change_history__li14154341151">Added <a href="gaussdbformysql_03_0130.html">Account Management (Non-Administrator)</a>.</li></ul>
</td>
</tr>
<tr id="change_history__row16457115113294"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p3458551162915">2024-05-31</p>
</td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p1545835172910">Optimized the content in <a href="gaussdb_03_0069.html">Backup Space and Billing</a>.</p>
</td>
</tr>
<tr id="change_history__row379772773712"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p1079842711374">2024-04-15</p>
</td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p97985277376">Added <a href="gaussdb_03_0069.html">Backup Space and Billing</a>.</p>
</td> </td>
</tr> </tr>
<tr id="change_history__row1936968944"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p16369168544">2024-02-28</p> <tr id="change_history__row1936968944"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p16369168544">2024-02-28</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p153691382045">Modified the following content:</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p1569122210418">Modified the parameter description in <a href="gaussdb_03_0087.html">Setting Alarm Rules</a>.</p>
<p id="change_history__p1569122210418">Modified the parameter description in <a href="gaussdb_03_0087.html">Setting Alarm Rules</a>.</p>
</td> </td>
</tr> </tr>
<tr id="change_history__row95151742133918"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p851615429394">2023-11-13</p> <tr id="change_history__row95151742133918"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p851615429394">2023-11-13</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p125161642133911">Modified the following content:</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><ul id="change_history__ul1158917403140"><li id="change_history__li4589124013149">Allowed you to change the node names synchronously during DB instance name change in <a href="gaussdb_03_0032.html">Changing a DB Instance Name</a>.</li><li id="change_history__li1458924071412">Added the event of deleting a task from the task center in <a href="gaussdb_03_0014.html">Key Operations Supported by CTS</a>.</li></ul>
<p id="change_history__p57065816392">Allowed you to change the node names synchronously during DB instance name change in <a href="gaussdb_03_0032.html">Changing a DB Instance Name</a>.</p>
<p id="change_history__p1348216321408">Added the event of deleting a task from the task center in <a href="gaussdb_03_0014.html">Key Operations Supported by CTS</a>.</p>
</td> </td>
</tr> </tr>
<tr id="change_history__row153719118197"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p553710151912">2023-10-25</p> <tr id="change_history__row153719118197"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p553710151912">2023-10-25</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p1853714181910">Modified the following content:</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p673142761912">Added specifications (2 vCPUs | 8 GB) in <a href="gaussdb_01_0004.html">DB Instance Specifications</a>.</p>
<p id="change_history__p673142761912">Added specifications (2 vCPUs | 8 GB) in <a href="gaussdb_01_0004.html">DB Instance Specifications</a>.</p>
</td> </td>
</tr> </tr>
<tr id="change_history__row0430195013419"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p14430250154119">2023-04-06</p> <tr id="change_history__row0430195013419"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p14430250154119">2023-04-06</p>
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</tr> </tr>
<tr id="change_history__row20513171511590"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p1824172113215">2022-11-30</p> <tr id="change_history__row20513171511590"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p1824172113215">2022-11-30</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p724142120218">Modified the following content:</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><ul id="change_history__ul238613303253"><li id="change_history__li1738603018256">Added <a href="gaussdb_02_0011.html">Introducing Read/Write Splitting</a>.</li><li id="change_history__li1438615301252">Added <a href="gaussdb_11_0017.html">Creating a Proxy Instance</a>.</li><li id="change_history__li163861830152517">Added <a href="gaussdb_11_0031.html">Changing a Proxy Address</a>.</li><li id="change_history__li7386143082514">Added <a href="gaussdb_11_0019.html">Deleting a Proxy Instance</a>.</li><li id="change_history__li16386630172514">Added <a href="gaussdb_11_0025.html">Enabling or Disabling Access Control</a>.</li><li id="change_history__li1738653015253">Added <a href="gaussdb_11_0018.html">Assigning Read Weights</a>.</li><li id="change_history__li11387103015251">Added <a href="gaussdb_11_0021.html">Testing Read/Write Splitting Performance</a>.</li></ul>
<ul id="change_history__ul238613303253"><li id="change_history__li1738603018256">Added <a href="gaussdb_02_0011.html">Introducing Read/Write Splitting</a>.</li><li id="change_history__li1438615301252">Added <a href="gaussdb_11_0017.html">Enabling Read/Write Splitting</a>.</li><li id="change_history__li163861830152517">Added <a href="gaussdb_11_0031.html">Changing the Read/Write Splitting Address</a>.</li><li id="change_history__li7386143082514">Added <a href="gaussdb_11_0019.html">Disabling Read/Write Splitting</a>.</li><li id="change_history__li16386630172514">Added <a href="gaussdb_11_0025.html">Enabling or Disabling Access Control</a>.</li><li id="change_history__li1738653015253">Added <a href="gaussdb_11_0025.html">Enabling or Disabling Access Control</a>.</li><li id="change_history__li11387103015251">Added <a href="gaussdb_11_0021.html">Testing Read/Write Splitting Performance</a>.</li></ul>
</td> </td>
</tr> </tr>
<tr id="change_history__row18558145711598"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p3558135715916">2021-12-09</p> <tr id="change_history__row18558145711598"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p3558135715916">2021-12-09</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p625415441216">Modified the following content:</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><ul id="change_history__ul1967517273213"><li id="change_history__li63301033183519">Modified instance specifications.</li><li id="change_history__li1310311133371">Modified the parameter description about adding a security group rule.</li><li id="change_history__li3289105513566">Modified the description of changing parameters in parameter templates.</li><li id="change_history__li115286145515">Modified the content of the section "Task Center".</li><li id="change_history__li473414141013">Optimized the description of the section "Viewing Monitoring Metrics".</li></ul>
<ul id="change_history__ul1967517273213"><li id="change_history__li63301033183519">Modified instance specifications.</li><li id="change_history__li1310311133371">Modified the parameter description about adding a security group rule.</li><li id="change_history__li3289105513566">Modified the description of changing parameters in parameter templates.</li><li id="change_history__li115286145515">Modified the content of the section "Task Center".</li><li id="change_history__li473414141013">Optimized the description of the section "Viewing Monitoring Metrics".</li></ul>
</td> </td>
</tr> </tr>
<tr id="change_history__row18281917195810"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p13477133311812">2021-11-30</p> <tr id="change_history__row18281917195810"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p13477133311812">2021-11-30</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p68291717125812">Optimized <a href="gaussdb_task_0002.html">Deleting a Task Record</a>.</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p68291717125812">Optimized the content in <a href="gaussdb_task_0002.html">Deleting a Task Record</a>.</p>
</td> </td>
</tr> </tr>
<tr id="change_history__row6890551145514"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p88911751195512">2021-08-31</p> <tr id="change_history__row6890551145514"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p88911751195512">2021-08-31</p>
@ -67,14 +71,13 @@
</tr> </tr>
<tr id="change_history__row51754533615"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p51766513364">2020-07-31</p> <tr id="change_history__row51754533615"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p51766513364">2020-07-31</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p1682915501179">Modified the following content:</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><ul id="change_history__ul118291650141714"><li id="change_history__li38298509176">Modified the product description in <a href="introduction.html">What Is GaussDB(for MySQL)?</a></li></ul>
<ul id="change_history__ul118291650141714"><li id="change_history__li38298509176">Product description in <a href="introduction.html">What Is GaussDB(for MySQL)?</a></li></ul>
<ul id="change_history__ul1082965011172"><li id="change_history__li198294503171">Optimized DB instance specifications.</li></ul> <ul id="change_history__ul1082965011172"><li id="change_history__li198294503171">Optimized DB instance specifications.</li></ul>
</td> </td>
</tr> </tr>
<tr id="change_history__row58082072010"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p419645122015">2020-07-14</p> <tr id="change_history__row58082072010"><td class="cellrowborder" valign="top" width="21.85%" headers="mcps1.3.1.1.3.1.1 "><p id="change_history__p419645122015">2020-07-14</p>
</td> </td>
<td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p2094081913200">This issue is the first official release.</p> <td class="cellrowborder" valign="top" width="78.14999999999999%" headers="mcps1.3.1.1.3.1.2 "><p id="change_history__p2094081913200">This is the first official release.</p>
</td> </td>
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</tbody> </tbody>

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<div class="tablenoborder"><a name="gaussdb_01_0008__en-us_topic_0171122409_table60364850123535"></a><a name="en-us_topic_0171122409_table60364850123535"></a><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_01_0008__en-us_topic_0171122409_table60364850123535" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Function constraints</caption><thead align="left"><tr id="gaussdb_01_0008__en-us_topic_0171122409_row63835418123535"><th align="left" class="cellrowborder" valign="top" width="23%" id="mcps1.3.2.2.3.1.1"><p id="gaussdb_01_0008__en-us_topic_0171122409_p3286360123535"><strong id="gaussdb_01_0008__en-us_topic_0171122409_b8423527068570">Function</strong></p> <div class="tablenoborder"><a name="gaussdb_01_0008__en-us_topic_0171122409_table60364850123535"></a><a name="en-us_topic_0171122409_table60364850123535"></a><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_01_0008__en-us_topic_0171122409_table60364850123535" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Function constraints</caption><thead align="left"><tr id="gaussdb_01_0008__en-us_topic_0171122409_row63835418123535"><th align="left" class="cellrowborder" valign="top" width="23%" id="mcps1.3.2.2.3.1.1"><p id="gaussdb_01_0008__en-us_topic_0171122409_p3286360123535"><strong id="gaussdb_01_0008__en-us_topic_0171122409_b8423527068570">Function</strong></p>
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<th align="left" class="cellrowborder" valign="top" width="77%" id="mcps1.3.2.2.3.1.2"><p id="gaussdb_01_0008__en-us_topic_0171122409_p46946588123535"><strong id="gaussdb_01_0008__en-us_topic_0171122409_b19866114123535">Constraints</strong></p> <th align="left" class="cellrowborder" valign="top" width="77%" id="mcps1.3.2.2.3.1.2"><p id="gaussdb_01_0008__en-us_topic_0171122409_p46946588123535"><strong id="gaussdb_01_0008__b1753674316561">Constraint</strong></p>
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<h1 class="topictitle1">Step 1: Create a DB Instance</h1> <h1 class="topictitle1">Step 1: Create a DB Instance</h1>
<div id="body8662426"><div class="section" id="gaussdb_02_0004__en-us_topic_0171122419_section3881006517148"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_02_0004__en-us_topic_0171122419_p168872184212">This section describes how to create a DB instance on the management console.</p> <div id="body8662426"><div class="section" id="gaussdb_02_0004__en-us_topic_0171122419_section3881006517148"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_02_0004__en-us_topic_0171122419_p168872184212">This section describes how to create a DB instance on the management console.</p>
</div> </div>
<div class="section" id="gaussdb_02_0004__en-us_topic_0171122419_sa49e76d034cc442ab719cd1f42a02558"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0004__en-us_topic_0171122419_oc0a2b98371dd48ae94959405dfc6e5d3"><li id="gaussdb_02_0004__li5319223817319"><span>Log in to the management console.</span></li><li id="gaussdb_02_0004__li2024912215295"><span>Click <span><img id="gaussdb_02_0004__image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0004__li181542917431"><span>Click <strong id="gaussdb_02_0004__b4353193615913">Service List</strong>. Under <strong id="gaussdb_02_0004__b163533362595">Database</strong>, click <strong id="gaussdb_02_0004__b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_02_0004__en-us_topic_0171122419_l3af6a9cc8c404c93b5c915fc46a3aaac"><span>On the <span class="uicontrol" id="gaussdb_02_0004__uicontrol17919155415256"><b>Instances</b></span> page, click <span class="uicontrol" id="gaussdb_02_0004__uicontrol6921195452520"><b>Create DB Instance</b></span>.</span></li><li id="gaussdb_02_0004__en-us_topic_0171122419_l9e0f6a131be340e1b0b53a950bf5fef6"><span>On the displayed page, configure parameters about the DB instance specifications. Then, click <span class="uicontrol" id="gaussdb_02_0004__uicontrol184361659879"><b>Create Now</b></span>.</span><p> <div class="section" id="gaussdb_02_0004__en-us_topic_0171122419_sa49e76d034cc442ab719cd1f42a02558"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0004__en-us_topic_0171122419_oc0a2b98371dd48ae94959405dfc6e5d3"><li id="gaussdb_02_0004__li5319223817319"><span>Log in to the management console.</span></li><li id="gaussdb_02_0004__li2024912215295"><span>Click <span><img id="gaussdb_02_0004__image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0004__li181542917431"><span>Click <strong id="gaussdb_02_0004__b1548312501622">Service List</strong>. Under <strong id="gaussdb_02_0004__b1748325012210">Databases</strong>, click <strong id="gaussdb_02_0004__b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_02_0004__en-us_topic_0171122419_l3af6a9cc8c404c93b5c915fc46a3aaac"><span>On the <span class="uicontrol" id="gaussdb_02_0004__uicontrol17919155415256"><b>Instances</b></span> page, click <span class="uicontrol" id="gaussdb_02_0004__uicontrol6921195452520"><b>Create DB Instance</b></span>.</span></li><li id="gaussdb_02_0004__en-us_topic_0171122419_l9e0f6a131be340e1b0b53a950bf5fef6"><span>On the displayed page, configure parameters about the DB instance specifications. Then, click <span class="uicontrol" id="gaussdb_02_0004__uicontrol184361659879"><b>Create Now</b></span>.</span><p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__en-us_topic_0171122419_table2225129135419" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Basic information</caption><thead align="left"><tr id="gaussdb_02_0004__en-us_topic_0171122419_row82251935412"><th align="left" class="cellrowborder" valign="top" width="17.669999999999998%" id="mcps1.3.2.2.5.2.1.2.3.1.1"><p id="gaussdb_02_0004__en-us_topic_0171122419_p142251694540"><strong id="gaussdb_02_0004__en-us_topic_0171122419_b84235270618284">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__en-us_topic_0171122419_table2225129135419" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Basic information</caption><thead align="left"><tr id="gaussdb_02_0004__en-us_topic_0171122419_row82251935412"><th align="left" class="cellrowborder" valign="top" width="17.669999999999998%" id="mcps1.3.2.2.5.2.1.2.3.1.1"><p id="gaussdb_02_0004__en-us_topic_0171122419_p142251694540"><strong id="gaussdb_02_0004__en-us_topic_0171122419_b84235270618284">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="82.33%" id="mcps1.3.2.2.5.2.1.2.3.1.2"><p id="gaussdb_02_0004__en-us_topic_0171122419_p1322516915549"><strong id="gaussdb_02_0004__en-us_topic_0171122419_b842352706212013">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="82.33%" id="mcps1.3.2.2.5.2.1.2.3.1.2"><p id="gaussdb_02_0004__en-us_topic_0171122419_p1322516915549"><strong id="gaussdb_02_0004__en-us_topic_0171122419_b842352706212013">Description</strong></p>
@ -47,9 +47,9 @@
</table> </table>
</div> </div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__en-us_topic_0171122419_table13240997543" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Specifications and storage</caption><thead align="left"><tr id="gaussdb_02_0004__en-us_topic_0171122419_row2225890545"><th align="left" class="cellrowborder" valign="top" width="20.07%" id="mcps1.3.2.2.5.2.2.2.3.1.1"><p id="gaussdb_02_0004__en-us_topic_0171122419_p132257916546"><strong id="gaussdb_02_0004__b1857504646">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__en-us_topic_0171122419_table13240997543" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Specifications and storage</caption><thead align="left"><tr id="gaussdb_02_0004__en-us_topic_0171122419_row2225890545"><th align="left" class="cellrowborder" valign="top" width="20.07%" id="mcps1.3.2.2.5.2.2.2.3.1.1"><p id="gaussdb_02_0004__en-us_topic_0171122419_p132257916546"><strong id="gaussdb_02_0004__b1196493469">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="79.93%" id="mcps1.3.2.2.5.2.2.2.3.1.2"><p id="gaussdb_02_0004__en-us_topic_0171122419_p112251899547"><strong id="gaussdb_02_0004__b286297464">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="79.93%" id="mcps1.3.2.2.5.2.2.2.3.1.2"><p id="gaussdb_02_0004__en-us_topic_0171122419_p112251899547"><strong id="gaussdb_02_0004__b1072674886">Description</strong></p>
</th> </th>
</tr> </tr>
</thead> </thead>
@ -74,9 +74,9 @@
</table> </table>
</div> </div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__en-us_topic_0171122419_table42406975413" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Network</caption><thead align="left"><tr id="gaussdb_02_0004__en-us_topic_0171122419_row42407919548"><th align="left" class="cellrowborder" valign="top" width="21.19%" id="mcps1.3.2.2.5.2.3.2.3.1.1"><p id="gaussdb_02_0004__en-us_topic_0171122419_p11240189205418"><strong id="gaussdb_02_0004__b1013323653">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__en-us_topic_0171122419_table42406975413" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Network</caption><thead align="left"><tr id="gaussdb_02_0004__en-us_topic_0171122419_row42407919548"><th align="left" class="cellrowborder" valign="top" width="21.19%" id="mcps1.3.2.2.5.2.3.2.3.1.1"><p id="gaussdb_02_0004__en-us_topic_0171122419_p11240189205418"><strong id="gaussdb_02_0004__b1799987805">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="78.81%" id="mcps1.3.2.2.5.2.3.2.3.1.2"><p id="gaussdb_02_0004__en-us_topic_0171122419_p324014918549"><strong id="gaussdb_02_0004__b1027282407">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="78.81%" id="mcps1.3.2.2.5.2.3.2.3.1.2"><p id="gaussdb_02_0004__en-us_topic_0171122419_p324014918549"><strong id="gaussdb_02_0004__b1146894189">Description</strong></p>
</th> </th>
</tr> </tr>
</thead> </thead>
@ -102,7 +102,7 @@
</table> </table>
</div> </div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__en-us_topic_0171122419_table13240209195412" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Database configuration</caption><thead align="left"><tr id="gaussdb_02_0004__en-us_topic_0171122419_row1424011975415"><th align="left" class="cellrowborder" valign="top" width="21.18%" id="mcps1.3.2.2.5.2.4.2.3.1.1"><p id="gaussdb_02_0004__en-us_topic_0171122419_p1524016975416"><strong id="gaussdb_02_0004__b598157855">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__en-us_topic_0171122419_table13240209195412" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Database configuration</caption><thead align="left"><tr id="gaussdb_02_0004__en-us_topic_0171122419_row1424011975415"><th align="left" class="cellrowborder" valign="top" width="21.18%" id="mcps1.3.2.2.5.2.4.2.3.1.1"><p id="gaussdb_02_0004__en-us_topic_0171122419_p1524016975416"><strong id="gaussdb_02_0004__b1622416788">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="78.82000000000001%" id="mcps1.3.2.2.5.2.4.2.3.1.2"><p id="gaussdb_02_0004__en-us_topic_0171122419_p72404919543"><strong id="gaussdb_02_0004__en-us_topic_0171122419_b84235270618288">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="78.82000000000001%" id="mcps1.3.2.2.5.2.4.2.3.1.2"><p id="gaussdb_02_0004__en-us_topic_0171122419_p72404919543"><strong id="gaussdb_02_0004__en-us_topic_0171122419_b84235270618288">Description</strong></p>
</th> </th>
@ -129,9 +129,9 @@
</table> </table>
</div> </div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__table16717956123819" frame="border" border="1" rules="all"><caption><b>Table 5 </b>Parameter template</caption><thead align="left"><tr id="gaussdb_02_0004__row271817565382"><th align="left" class="cellrowborder" valign="top" width="18.38%" id="mcps1.3.2.2.5.2.5.2.3.1.1"><p id="gaussdb_02_0004__p9230191703918"><strong id="gaussdb_02_0004__b1575809994">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0004__table16717956123819" frame="border" border="1" rules="all"><caption><b>Table 5 </b>Parameter template</caption><thead align="left"><tr id="gaussdb_02_0004__row271817565382"><th align="left" class="cellrowborder" valign="top" width="18.38%" id="mcps1.3.2.2.5.2.5.2.3.1.1"><p id="gaussdb_02_0004__p9230191703918"><strong id="gaussdb_02_0004__b331212045">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="81.62%" id="mcps1.3.2.2.5.2.5.2.3.1.2"><p id="gaussdb_02_0004__p18230817113920"><strong id="gaussdb_02_0004__b481704261">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="81.62%" id="mcps1.3.2.2.5.2.5.2.3.1.2"><p id="gaussdb_02_0004__p18230817113920"><strong id="gaussdb_02_0004__b169395370">Description</strong></p>
</th> </th>
</tr> </tr>
</thead> </thead>

2
docs/gaussdb_mysql/umn/gaussdb_02_0008.html
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@ -12,7 +12,7 @@
<p id="gaussdb_02_0008__en-us_topic_0171122646_en-us_topic_0134327719_p147943013223">If you use <strong id="gaussdb_02_0008__en-us_topic_0171122646_b4779330614023">0.0.0.0/0</strong>, all IP addresses are enabled to access DB instances in the security group.</p> <p id="gaussdb_02_0008__en-us_topic_0171122646_en-us_topic_0134327719_p147943013223">If you use <strong id="gaussdb_02_0008__en-us_topic_0171122646_b4779330614023">0.0.0.0/0</strong>, all IP addresses are enabled to access DB instances in the security group.</p>
</div></div> </div></div>
</div> </div>
<div class="section" id="gaussdb_02_0008__en-us_topic_0171122646_sd7df6780947f4922b3c5cb114ae3d12e"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0008__en-us_topic_0171122646_o13a2543136f045df92268b6f8b5f248c"><li id="gaussdb_02_0008__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_02_0008__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_02_0008__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0008__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_02_0008__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_02_0008__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_02_0008__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_02_0008__en-us_topic_0171122646_lcd296510316241ec96805ea09290dde0"><span>On the <strong id="gaussdb_02_0008__en-us_topic_0171122646_b15787103615547">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_02_0008__en-us_topic_0171122646_l1ac30215d6984fc686c27070a9875aab"><span>Configure security group rules.</span><p><p id="gaussdb_02_0008__en-us_topic_0171122646_p1428132133210">In the <strong id="gaussdb_02_0008__en-us_topic_0171122646_b189409398124">Network Information</strong> area on the <strong id="gaussdb_02_0008__b4769164313302">Basic Information</strong> page, click the security group.</p> <div class="section" id="gaussdb_02_0008__en-us_topic_0171122646_sd7df6780947f4922b3c5cb114ae3d12e"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0008__en-us_topic_0171122646_o13a2543136f045df92268b6f8b5f248c"><li id="gaussdb_02_0008__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_02_0008__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_02_0008__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0008__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_02_0008__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_02_0008__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_02_0008__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_02_0008__en-us_topic_0171122646_lcd296510316241ec96805ea09290dde0"><span>On the <strong id="gaussdb_02_0008__en-us_topic_0171122646_b15787103615547">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_02_0008__en-us_topic_0171122646_l1ac30215d6984fc686c27070a9875aab"><span>Configure security group rules.</span><p><p id="gaussdb_02_0008__en-us_topic_0171122646_p1428132133210">In the <strong id="gaussdb_02_0008__en-us_topic_0171122646_b189409398124">Network Information</strong> area on the <strong id="gaussdb_02_0008__b4769164313302">Basic Information</strong> page, click the security group.</p>
</p></li><li id="gaussdb_02_0008__en-us_topic_0171122646_lb0e8440adcea471c8992839ce9093a65"><span>On the <strong id="gaussdb_02_0008__en-us_topic_0171122646_b1514219161512">Inbound Rules</strong> tab, click <strong id="gaussdb_02_0008__en-us_topic_0171122646_b313832731519">Add Rule</strong>. In the displayed dialog box, set required parameters and click <strong id="gaussdb_02_0008__en-us_topic_0171122646_b14827125984310">OK</strong>.</span><p><div class="p" id="gaussdb_02_0008__en-us_topic_0171122646_en-us_topic_0134327719_p179625268405">You can click <strong id="gaussdb_02_0008__en-us_topic_0171122646_b728513118449">+</strong> to add more inbound rules. </p></li><li id="gaussdb_02_0008__en-us_topic_0171122646_lb0e8440adcea471c8992839ce9093a65"><span>On the <strong id="gaussdb_02_0008__en-us_topic_0171122646_b1514219161512">Inbound Rules</strong> tab, click <strong id="gaussdb_02_0008__en-us_topic_0171122646_b313832731519">Add Rule</strong>. In the displayed dialog box, set required parameters and click <strong id="gaussdb_02_0008__en-us_topic_0171122646_b14827125984310">OK</strong>.</span><p><div class="p" id="gaussdb_02_0008__en-us_topic_0171122646_en-us_topic_0134327719_p179625268405">You can click <strong id="gaussdb_02_0008__en-us_topic_0171122646_b728513118449">+</strong> to add more inbound rules.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0008__table48641848194714" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Inbound rule parameter description</caption><thead align="left"><tr id="gaussdb_02_0008__row1686410482475"><th align="left" class="cellrowborder" valign="top" width="17.611761176117614%" id="mcps1.3.3.2.6.2.1.2.2.4.1.1"><p id="gaussdb_02_0008__p6864114818478"><strong id="gaussdb_02_0008__en-us_topic_0171122646_b178657444443">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0008__table48641848194714" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Inbound rule parameter description</caption><thead align="left"><tr id="gaussdb_02_0008__row1686410482475"><th align="left" class="cellrowborder" valign="top" width="17.611761176117614%" id="mcps1.3.3.2.6.2.1.2.2.4.1.1"><p id="gaussdb_02_0008__p6864114818478"><strong id="gaussdb_02_0008__en-us_topic_0171122646_b178657444443">Parameter</strong></p>
</th> </th>

2
docs/gaussdb_mysql/umn/gaussdb_02_0009.html
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@ -56,7 +56,7 @@
</p></li><li id="gaussdb_02_0009__en-us_topic_0171122303_li1754301665115"><span>In the displayed window, select the connection that you have created and click <span class="uicontrol" id="gaussdb_02_0009__en-us_topic_0171122303_uicontrol0195247102815"><b>Open</b></span>. If the connection information is correct, the DB instance is successfully connected.</span><p><div class="fignone" id="gaussdb_02_0009__en-us_topic_0171122303_fig4589305124"><span class="figcap"><b>Figure 3 </b>Opening a session</span><br><span><img id="gaussdb_02_0009__en-us_topic_0171122303_image16519105112914" src="en-us_image_0000001402858817.png"></span></div> </p></li><li id="gaussdb_02_0009__en-us_topic_0171122303_li1754301665115"><span>In the displayed window, select the connection that you have created and click <span class="uicontrol" id="gaussdb_02_0009__en-us_topic_0171122303_uicontrol0195247102815"><b>Open</b></span>. If the connection information is correct, the DB instance is successfully connected.</span><p><div class="fignone" id="gaussdb_02_0009__en-us_topic_0171122303_fig4589305124"><span class="figcap"><b>Figure 3 </b>Opening a session</span><br><span><img id="gaussdb_02_0009__en-us_topic_0171122303_image16519105112914" src="en-us_image_0000001402858817.png"></span></div>
</p></li></ol> </p></li></ol>
</div> </div>
<div class="section" id="gaussdb_02_0009__en-us_topic_0171122303_section09675811156"><h4 class="sectiontitle">SSL Connection</h4><ol id="gaussdb_02_0009__en-us_topic_0171122303_ol155871645114112"><li id="gaussdb_02_0009__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_02_0009__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_02_0009__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0009__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_02_0009__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_02_0009__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_02_0009__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_02_0009__en-us_topic_0171122303_li2033132135913"><span>In the <span class="uicontrol" id="gaussdb_02_0009__en-us_topic_0171122303_uicontrol1946253211235"><b>DB Instance Information</b></span> area on the <strong id="gaussdb_02_0009__en-us_topic_0171122303_b64621432192311">Basic Information</strong> page, click <span><img id="gaussdb_02_0009__en-us_topic_0171122303_image197254186415" src="en-us_image_0000001402979157.png"></span> in the <strong id="gaussdb_02_0009__en-us_topic_0171122303_b19463123262315">SSL</strong> field to download the root certificate or certificate bundle.</span></li><li id="gaussdb_02_0009__li1394511118347"><span>Import the root certificate to the Linux OS on the ECS.</span><p><p id="gaussdb_02_0009__p11688163783412">For details, see <a href="gaussdb_faq_0010.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></p> <div class="section" id="gaussdb_02_0009__en-us_topic_0171122303_section09675811156"><h4 class="sectiontitle">SSL Connection</h4><ol id="gaussdb_02_0009__en-us_topic_0171122303_ol155871645114112"><li id="gaussdb_02_0009__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_02_0009__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_02_0009__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0009__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_02_0009__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_02_0009__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_02_0009__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_02_0009__en-us_topic_0171122303_li2033132135913"><span>In the <span class="uicontrol" id="gaussdb_02_0009__en-us_topic_0171122303_uicontrol1946253211235"><b>DB Instance Information</b></span> area on the <strong id="gaussdb_02_0009__en-us_topic_0171122303_b64621432192311">Basic Information</strong> page, click <span><img id="gaussdb_02_0009__en-us_topic_0171122303_image197254186415" src="en-us_image_0000001402979157.png"></span> in the <strong id="gaussdb_02_0009__en-us_topic_0171122303_b19463123262315">SSL</strong> field to download the root certificate or certificate bundle.</span></li><li id="gaussdb_02_0009__li1394511118347"><span>Import the root certificate to the Linux OS on the ECS.</span><p><p id="gaussdb_02_0009__p11688163783412">For details, see <a href="gaussdb_faq_0010.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></p>
</p></li><li id="gaussdb_02_0009__en-us_topic_0171122303_l7bda6239fa2543bc94a47decf26c022e"><span>Connect to a DB instance. The Linux OS is assumed in this example.</span><p><p id="gaussdb_02_0009__en-us_topic_0171122303_p717752055713"><strong id="gaussdb_02_0009__en-us_topic_0171122303_b188183153572">mysql -h</strong> &lt;<em id="gaussdb_02_0009__en-us_topic_0171122303_i16818415135719">hostName</em>&gt; <strong id="gaussdb_02_0009__en-us_topic_0171122303_b1481815154578">-P</strong><em id="gaussdb_02_0009__en-us_topic_0171122303_i996438155215"> &lt;port&gt;</em> <strong id="gaussdb_02_0009__en-us_topic_0171122303_b183211545720">-u</strong> &lt;<em id="gaussdb_02_0009__en-us_topic_0171122303_i188321315195711">userName</em>&gt; <strong id="gaussdb_02_0009__en-us_topic_0171122303_b14435192414119">-p</strong> <strong id="gaussdb_02_0009__en-us_topic_0171122303_b13832151515716">--ssl-ca=</strong>&lt;<em id="gaussdb_02_0009__en-us_topic_0171122303_i20832201515712">caName</em>&gt;</p> </p></li><li id="gaussdb_02_0009__en-us_topic_0171122303_l7bda6239fa2543bc94a47decf26c022e"><span>Connect to a DB instance. The Linux OS is assumed in this example.</span><p><p id="gaussdb_02_0009__en-us_topic_0171122303_p717752055713"><strong id="gaussdb_02_0009__en-us_topic_0171122303_b188183153572">mysql -h</strong> &lt;<em id="gaussdb_02_0009__en-us_topic_0171122303_i16818415135719">hostName</em>&gt; <strong id="gaussdb_02_0009__en-us_topic_0171122303_b1481815154578">-P</strong><em id="gaussdb_02_0009__en-us_topic_0171122303_i996438155215"> &lt;port&gt;</em> <strong id="gaussdb_02_0009__en-us_topic_0171122303_b183211545720">-u</strong> &lt;<em id="gaussdb_02_0009__en-us_topic_0171122303_i188321315195711">userName</em>&gt; <strong id="gaussdb_02_0009__en-us_topic_0171122303_b14435192414119">-p</strong> <strong id="gaussdb_02_0009__en-us_topic_0171122303_b13832151515716">--ssl-ca=</strong>&lt;<em id="gaussdb_02_0009__en-us_topic_0171122303_i20832201515712">caName</em>&gt;</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0009__en-us_topic_0171122303_table385819434338" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameter description</caption><thead align="left"><tr id="gaussdb_02_0009__en-us_topic_0171122303_row1285974314331"><th align="left" class="cellrowborder" valign="top" width="21.2%" id="mcps1.3.4.2.6.2.2.2.3.1.1"><p id="gaussdb_02_0009__en-us_topic_0171122303_p13859124323319"><strong id="gaussdb_02_0009__en-us_topic_0171122303_b963063452415">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0009__en-us_topic_0171122303_table385819434338" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameter description</caption><thead align="left"><tr id="gaussdb_02_0009__en-us_topic_0171122303_row1285974314331"><th align="left" class="cellrowborder" valign="top" width="21.2%" id="mcps1.3.4.2.6.2.2.2.3.1.1"><p id="gaussdb_02_0009__en-us_topic_0171122303_p13859124323319"><strong id="gaussdb_02_0009__en-us_topic_0171122303_b963063452415">Parameter</strong></p>

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<a name="gaussdb_02_0011"></a><a name="gaussdb_02_0011"></a> <a name="gaussdb_02_0011"></a><a name="gaussdb_02_0011"></a>
<h1 class="topictitle1">Introducing Read/Write Splitting</h1> <h1 class="topictitle1">Introducing Read/Write Splitting</h1>
<div id="body1597049709974"><p id="gaussdb_02_0011__p132351728946">Read/write splitting enables read and write requests to be automatically routed through a read/write splitting address. You can enable read/write splitting after read replicas are created by referring to <a href="gaussdb_11_0017.html">Enabling Read/Write Splitting</a>. Write requests are automatically routed to the primary node and read requests are routed to read replicas or the primary node by user-defined weights.</p> <div id="body1597049709974"><p id="gaussdb_02_0011__p132351728946">Read/write splitting enables read and write requests to be automatically routed through a proxy address. You can create a proxy instance by referring to <a href="gaussdb_11_0017.html">Creating a Proxy Instance</a> after read replicas are created. Thanks to the IP address of the proxy instance, write requests are automatically routed to the primary node and read requests are routed to read replicas and the primary node by user-defined weights.</p>
<div class="section" id="gaussdb_02_0011__en-us_topic_0199566296_section16458956512"><h4 class="sectiontitle">Constraints</h4><ul id="gaussdb_02_0011__ul1318119561113"><li id="gaussdb_02_0011__li218245610116">Read/write splitting can be enabled only when at least one read replica is created.</li><li id="gaussdb_02_0011__li1218216561913">After read/write splitting is enabled, the database port, private IP address, and security group cannot be changed.</li><li id="gaussdb_02_0011__li1487618935515">Proxy does not support READ-UNCOMMITTED transaction isolation.</li><li id="gaussdb_02_0011__li777020581330">A maximum of four proxy instances can be created for a GaussDB(for MySQL) instance.</li><li id="gaussdb_02_0011__li1560164513213">To use database proxy instances, ensure that the data in a single row of a table cannot exceed 16 MB.</li></ul> <div class="section" id="gaussdb_02_0011__en-us_topic_0199566296_section16458956512"><h4 class="sectiontitle">Constraints</h4><ul id="gaussdb_02_0011__ul1318119561113"><li id="gaussdb_02_0011__li218245610116">Read/write splitting can be enabled only when at least one read replica is created.</li><li id="gaussdb_02_0011__li1218216561913">After read/write splitting is enabled, the database port, private IP address, and security group cannot be changed.</li><li id="gaussdb_02_0011__li1487618935515">Proxy does not support READ-UNCOMMITTED transaction isolation.</li><li id="gaussdb_02_0011__li777020581330">A maximum of four proxy instances can be created for a GaussDB(for MySQL) instance.</li><li id="gaussdb_02_0011__li1560164513213">To use database proxy instances, ensure that the data in a single row of a table cannot exceed 16 MB.</li></ul>
<ul id="gaussdb_02_0011__en-us_topic_0199566296_ul9258722104611"><li id="gaussdb_02_0011__en-us_topic_0199566296_li57011645145618">After read/write splitting is enabled, both the database port and the security group of the primary node and read replicas are changed.</li><li id="gaussdb_02_0011__li632561822619">Read/write splitting does not support SSL encryption.</li><li id="gaussdb_02_0011__li31511541112612">Read/write splitting does not support the compression protocol.</li><li id="gaussdb_02_0011__li11453162414355">If multi-statements are executed, all subsequent requests will be routed to the primary node. To restore the read/write splitting function, you need to disconnect the connection between applications and the read/write splitting address and establish a connection again.</li><li id="gaussdb_02_0011__li4345925163813">The port number of the proxy instance is independent of that of the DB instance. Changing the port number of the DB instance does not change the port number of the proxy instance.</li></ul> <ul id="gaussdb_02_0011__en-us_topic_0199566296_ul9258722104611"><li id="gaussdb_02_0011__en-us_topic_0199566296_li57011645145618">After read/write splitting is enabled, both the database port and the security group of the primary node and read replicas are changed.</li><li id="gaussdb_02_0011__li632561822619">Read/write splitting does not support SSL encryption.</li><li id="gaussdb_02_0011__li31511541112612">Read/write splitting does not support the compression protocol.</li><li id="gaussdb_02_0011__li11453162414355">If multi-statements are executed, all subsequent requests will be routed to the primary node. To restore the read/write splitting function, you need to disconnect the connection between applications and the read/write splitting address and establish a connection again.</li><li id="gaussdb_02_0011__li4345925163813">The port number of a proxy instance is independent of that of a DB instance. Changing the port number of the DB instance does not change that of the proxy instance. The default port number of a proxy instance is 3306.</li></ul>
</div> </div>
<div class="section" id="gaussdb_02_0011__section1497573210125"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_02_0011__en-us_topic_0000001400270953_p8742251191216">When enabling read/write splitting for an instance, you need to select the nodes (including the primary node and read replicas) to be associated to the proxy instances.</p> <div class="section" id="gaussdb_02_0011__section1497573210125"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_02_0011__en-us_topic_0000001400270953_p8742251191216">When enabling read/write splitting for an instance, you need to select the nodes (including the primary node and read replicas) to be associated to the proxy instances.</p>
<ul id="gaussdb_02_0011__en-us_topic_0000001400270953_ul38264526235"><li id="gaussdb_02_0011__en-us_topic_0000001400270953_li182614524239">Different applications can connect to the instance through the read/write splitting addresses of different proxy instances. Read requests are routed to the proxy instances that applications connect to. You can also add nodes to or remove nodes from proxy instances.</li></ul> <ul id="gaussdb_02_0011__en-us_topic_0000001400270953_ul38264526235"><li id="gaussdb_02_0011__en-us_topic_0000001400270953_li182614524239">Different applications can connect to the instance through the IP addresses of different proxy instances. Read requests are routed to the proxy instances that applications connect to. You can also add nodes to or remove nodes from proxy instances.</li></ul>
<ul id="gaussdb_02_0011__en-us_topic_0000001400270953_ul159521336132310"><li id="gaussdb_02_0011__en-us_topic_0000001400270953_li09521364239">A primary node or read replica can be added to multiple proxy instances at the same time, and then is assigned different read weights. For details about how to assign weights, <a href="gaussdb_11_0018.html">Assigning Read Weights</a>.</li></ul> <ul id="gaussdb_02_0011__en-us_topic_0000001400270953_ul159521336132310"><li id="gaussdb_02_0011__en-us_topic_0000001400270953_li09521364239">A primary node or read replica can be added to multiple proxy instances at the same time, and then is assigned different read weights. For details about how to assign weights, <a href="gaussdb_11_0018.html">Assigning Read Weights</a>.</li></ul>
<ul id="gaussdb_02_0011__en-us_topic_0000001400270953_ul97808230141"><li id="gaussdb_02_0011__en-us_topic_0000001400270953_li1734712121310">In the read/write mode, all write requests are routed to the primary node, and read requests are routed to each node based on the read weights.</li><li id="gaussdb_02_0011__en-us_topic_0000001400270953_li24321417114411">In the read-only mode, only read requests can be routed to read replicas based on the read weights. Even if the primary node is assigned with a read weight, the weight does not take effect.</li></ul> <ul id="gaussdb_02_0011__en-us_topic_0000001400270953_ul97808230141"><li id="gaussdb_02_0011__en-us_topic_0000001400270953_li1734712121310">In the read/write mode, all write requests are routed to the primary node, and read requests are routed to each node based on the read weights.</li><li id="gaussdb_02_0011__en-us_topic_0000001400270953_li24321417114411">In the read-only mode, only read requests can be routed to read replicas based on the read weights. Even if the primary node is assigned with a read weight, the weight does not take effect.</li></ul>
<div class="fignone" id="gaussdb_02_0011__en-us_topic_0000001400270953_fig105651944161410"><span class="figcap"><b>Figure 1 </b>Multiple proxy instances</span><br><span><img class="eddx" id="gaussdb_02_0011__en-us_topic_0000001400270953_image1565174411144" src="en-us_image_0000001400271265.png"></span></div> <div class="fignone" id="gaussdb_02_0011__en-us_topic_0000001400270953_fig105651944161410"><span class="figcap"><b>Figure 1 </b>Multiple proxy instances</span><br><span><img class="eddx" id="gaussdb_02_0011__en-us_topic_0000001400270953_image1565174411144" src="en-us_image_0000001400271265.png"></span></div>

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<h1 class="topictitle1">Step 1: Create a DB Instance</h1> <h1 class="topictitle1">Step 1: Create a DB Instance</h1>
<div id="body8662426"><div class="section" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_section3881006517148"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p168872184212">This section describes how to create a DB instance on the management console.</p> <div id="body8662426"><div class="section" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_section3881006517148"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p168872184212">This section describes how to create a DB instance on the management console.</p>
</div> </div>
<div class="section" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_sa49e76d034cc442ab719cd1f42a02558"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_oc0a2b98371dd48ae94959405dfc6e5d3"><li id="gaussdb_02_0012__gaussdb_02_0004_li5319223817319"><span>Log in to the management console.</span></li><li id="gaussdb_02_0012__gaussdb_02_0004_li2024912215295"><span>Click <span><img id="gaussdb_02_0012__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0012__gaussdb_02_0004_li181542917431"><span>Click <strong id="gaussdb_02_0012__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_02_0012__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_02_0012__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_l3af6a9cc8c404c93b5c915fc46a3aaac"><span>On the <span class="uicontrol" id="gaussdb_02_0012__gaussdb_02_0004_uicontrol17919155415256"><b>Instances</b></span> page, click <span class="uicontrol" id="gaussdb_02_0012__gaussdb_02_0004_uicontrol6921195452520"><b>Create DB Instance</b></span>.</span></li><li id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_l9e0f6a131be340e1b0b53a950bf5fef6"><span>On the displayed page, configure parameters about the DB instance specifications. Then, click <span class="uicontrol" id="gaussdb_02_0012__gaussdb_02_0004_uicontrol184361659879"><b>Create Now</b></span>.</span><p> <div class="section" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_sa49e76d034cc442ab719cd1f42a02558"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_oc0a2b98371dd48ae94959405dfc6e5d3"><li id="gaussdb_02_0012__gaussdb_02_0004_li5319223817319"><span>Log in to the management console.</span></li><li id="gaussdb_02_0012__gaussdb_02_0004_li2024912215295"><span>Click <span><img id="gaussdb_02_0012__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0012__gaussdb_02_0004_li181542917431"><span>Click <strong id="gaussdb_02_0012__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_02_0012__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_02_0012__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_l3af6a9cc8c404c93b5c915fc46a3aaac"><span>On the <span class="uicontrol" id="gaussdb_02_0012__gaussdb_02_0004_uicontrol17919155415256"><b>Instances</b></span> page, click <span class="uicontrol" id="gaussdb_02_0012__gaussdb_02_0004_uicontrol6921195452520"><b>Create DB Instance</b></span>.</span></li><li id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_l9e0f6a131be340e1b0b53a950bf5fef6"><span>On the displayed page, configure parameters about the DB instance specifications. Then, click <span class="uicontrol" id="gaussdb_02_0012__gaussdb_02_0004_uicontrol184361659879"><b>Create Now</b></span>.</span><p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_table2225129135419" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Basic information</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_row82251935412"><th align="left" class="cellrowborder" valign="top" width="17.669999999999998%" id="mcps1.3.2.2.5.2.1.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p142251694540"><strong id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_b84235270618284">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_table2225129135419" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Basic information</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_row82251935412"><th align="left" class="cellrowborder" valign="top" width="17.669999999999998%" id="mcps1.3.2.2.5.2.1.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p142251694540"><strong id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_b84235270618284">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="82.33%" id="mcps1.3.2.2.5.2.1.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p1322516915549"><strong id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_b842352706212013">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="82.33%" id="mcps1.3.2.2.5.2.1.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p1322516915549"><strong id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_b842352706212013">Description</strong></p>
@ -47,9 +47,9 @@
</table> </table>
</div> </div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_table13240997543" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Specifications and storage</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_row2225890545"><th align="left" class="cellrowborder" valign="top" width="20.07%" id="mcps1.3.2.2.5.2.2.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p132257916546"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1857504646">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_table13240997543" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Specifications and storage</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_row2225890545"><th align="left" class="cellrowborder" valign="top" width="20.07%" id="mcps1.3.2.2.5.2.2.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p132257916546"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1196493469">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="79.93%" id="mcps1.3.2.2.5.2.2.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p112251899547"><strong id="gaussdb_02_0012__gaussdb_02_0004_b286297464">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="79.93%" id="mcps1.3.2.2.5.2.2.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p112251899547"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1072674886">Description</strong></p>
</th> </th>
</tr> </tr>
</thead> </thead>
@ -74,9 +74,9 @@
</table> </table>
</div> </div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_table42406975413" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Network</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_row42407919548"><th align="left" class="cellrowborder" valign="top" width="21.19%" id="mcps1.3.2.2.5.2.3.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p11240189205418"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1013323653">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_table42406975413" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Network</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_row42407919548"><th align="left" class="cellrowborder" valign="top" width="21.19%" id="mcps1.3.2.2.5.2.3.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p11240189205418"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1799987805">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="78.81%" id="mcps1.3.2.2.5.2.3.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p324014918549"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1027282407">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="78.81%" id="mcps1.3.2.2.5.2.3.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p324014918549"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1146894189">Description</strong></p>
</th> </th>
</tr> </tr>
</thead> </thead>
@ -102,7 +102,7 @@
</table> </table>
</div> </div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_table13240209195412" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Database configuration</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_row1424011975415"><th align="left" class="cellrowborder" valign="top" width="21.18%" id="mcps1.3.2.2.5.2.4.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p1524016975416"><strong id="gaussdb_02_0012__gaussdb_02_0004_b598157855">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_table13240209195412" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Database configuration</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_row1424011975415"><th align="left" class="cellrowborder" valign="top" width="21.18%" id="mcps1.3.2.2.5.2.4.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p1524016975416"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1622416788">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="78.82000000000001%" id="mcps1.3.2.2.5.2.4.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p72404919543"><strong id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_b84235270618288">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="78.82000000000001%" id="mcps1.3.2.2.5.2.4.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_p72404919543"><strong id="gaussdb_02_0012__gaussdb_02_0004_en-us_topic_0171122419_b84235270618288">Description</strong></p>
</th> </th>
@ -129,9 +129,9 @@
</table> </table>
</div> </div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_table16717956123819" frame="border" border="1" rules="all"><caption><b>Table 5 </b>Parameter template</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_row271817565382"><th align="left" class="cellrowborder" valign="top" width="18.38%" id="mcps1.3.2.2.5.2.5.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_p9230191703918"><strong id="gaussdb_02_0012__gaussdb_02_0004_b1575809994">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0012__gaussdb_02_0004_table16717956123819" frame="border" border="1" rules="all"><caption><b>Table 5 </b>Parameter template</caption><thead align="left"><tr id="gaussdb_02_0012__gaussdb_02_0004_row271817565382"><th align="left" class="cellrowborder" valign="top" width="18.38%" id="mcps1.3.2.2.5.2.5.2.3.1.1"><p id="gaussdb_02_0012__gaussdb_02_0004_p9230191703918"><strong id="gaussdb_02_0012__gaussdb_02_0004_b331212045">Parameter</strong></p>
</th> </th>
<th align="left" class="cellrowborder" valign="top" width="81.62%" id="mcps1.3.2.2.5.2.5.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_p18230817113920"><strong id="gaussdb_02_0012__gaussdb_02_0004_b481704261">Description</strong></p> <th align="left" class="cellrowborder" valign="top" width="81.62%" id="mcps1.3.2.2.5.2.5.2.3.1.2"><p id="gaussdb_02_0012__gaussdb_02_0004_p18230817113920"><strong id="gaussdb_02_0012__gaussdb_02_0004_b169395370">Description</strong></p>
</th> </th>
</tr> </tr>
</thead> </thead>

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@ -11,7 +11,7 @@
<p id="gaussdb_02_0013__gaussdb_02_0008_en-us_topic_0171122646_en-us_topic_0134327719_p147943013223">If you use <strong id="gaussdb_02_0013__gaussdb_02_0008_en-us_topic_0171122646_b4779330614023">0.0.0.0/0</strong>, all IP addresses are enabled to access DB instances in the security group.</p> <p id="gaussdb_02_0013__gaussdb_02_0008_en-us_topic_0171122646_en-us_topic_0134327719_p147943013223">If you use <strong id="gaussdb_02_0013__gaussdb_02_0008_en-us_topic_0171122646_b4779330614023">0.0.0.0/0</strong>, all IP addresses are enabled to access DB instances in the security group.</p>
</div></div> </div></div>
</div> </div>
<div class="section" id="gaussdb_02_0013__section3729173933617"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0013__en-us_topic_0171122646_o13a2543136f045df92268b6f8b5f248c"><li id="gaussdb_02_0013__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_02_0013__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_02_0013__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0013__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_02_0013__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_02_0013__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_02_0013__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_02_0013__en-us_topic_0171122646_lcd296510316241ec96805ea09290dde0"><span>On the <span class="uicontrol" id="gaussdb_02_0013__uicontrol136802101417"><b>Instance Management</b></span> page, click the target DB instance.</span></li><li id="gaussdb_02_0013__en-us_topic_0171122646_l1ac30215d6984fc686c27070a9875aab"><span>Configure security group rules.</span><p><p id="gaussdb_02_0013__en-us_topic_0171122646_p1428132133210">In the <strong id="gaussdb_02_0013__b851714191411">Network Information</strong> area on the <strong id="gaussdb_02_0013__b6701413142">Basic Information</strong> page, click the security group.</p> <div class="section" id="gaussdb_02_0013__section3729173933617"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0013__en-us_topic_0171122646_o13a2543136f045df92268b6f8b5f248c"><li id="gaussdb_02_0013__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_02_0013__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_02_0013__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0013__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_02_0013__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_02_0013__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_02_0013__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_02_0013__en-us_topic_0171122646_lcd296510316241ec96805ea09290dde0"><span>On the <span class="uicontrol" id="gaussdb_02_0013__uicontrol136802101417"><b>Instance Management</b></span> page, click the target DB instance.</span></li><li id="gaussdb_02_0013__en-us_topic_0171122646_l1ac30215d6984fc686c27070a9875aab"><span>Configure security group rules.</span><p><p id="gaussdb_02_0013__en-us_topic_0171122646_p1428132133210">In the <strong id="gaussdb_02_0013__b851714191411">Network Information</strong> area on the <strong id="gaussdb_02_0013__b6701413142">Basic Information</strong> page, click the security group.</p>
</p></li><li id="gaussdb_02_0013__en-us_topic_0171122646_lb0e8440adcea471c8992839ce9093a65"><span>On the <strong id="gaussdb_02_0013__b778491595711">Inbound Rules</strong> tab, click <strong id="gaussdb_02_0013__b1778581511573">Add Rule</strong>. In the displayed dialog box, set required parameters and click <strong id="gaussdb_02_0013__b8786161512576">OK</strong>.</span><p><div class="p" id="gaussdb_02_0013__en-us_topic_0171122646_en-us_topic_0134327719_p179625268405">You can click <strong id="gaussdb_02_0013__en-us_topic_0171122646_b728513118449">+</strong> to add more inbound rules. </p></li><li id="gaussdb_02_0013__en-us_topic_0171122646_lb0e8440adcea471c8992839ce9093a65"><span>On the <strong id="gaussdb_02_0013__b778491595711">Inbound Rules</strong> tab, click <strong id="gaussdb_02_0013__b1778581511573">Add Rule</strong>. In the displayed dialog box, set required parameters and click <strong id="gaussdb_02_0013__b8786161512576">OK</strong>.</span><p><div class="p" id="gaussdb_02_0013__en-us_topic_0171122646_en-us_topic_0134327719_p179625268405">You can click <strong id="gaussdb_02_0013__en-us_topic_0171122646_b728513118449">+</strong> to add more inbound rules.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0013__en-us_topic_0171122646_te28fc9b0702c4f25b10e331b2462da3d" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Inbound rule parameter description</caption><thead align="left"><tr id="gaussdb_02_0013__en-us_topic_0171122646_rb3cd3cba51d749fc9644646e4116521a"><th align="left" class="cellrowborder" valign="top" width="17.611761176117614%" id="mcps1.3.3.2.6.2.1.2.2.4.1.1"><p id="gaussdb_02_0013__en-us_topic_0171122646_en-us_topic_0134327719_p84628252403">Parameter</p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0013__en-us_topic_0171122646_te28fc9b0702c4f25b10e331b2462da3d" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Inbound rule parameter description</caption><thead align="left"><tr id="gaussdb_02_0013__en-us_topic_0171122646_rb3cd3cba51d749fc9644646e4116521a"><th align="left" class="cellrowborder" valign="top" width="17.611761176117614%" id="mcps1.3.3.2.6.2.1.2.2.4.1.1"><p id="gaussdb_02_0013__en-us_topic_0171122646_en-us_topic_0134327719_p84628252403">Parameter</p>
</th> </th>

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@ -56,7 +56,7 @@
</div></div> </div></div>
</p></li></ol> </p></li></ol>
</div> </div>
<div class="section" id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_en-us_topic_0153118658_section335618164205"><h4 class="sectiontitle">Using SSL to Connect to a DB Instance</h4><ol id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_en-us_topic_0153118658_ol9899222162618"><li id="gaussdb_02_0014__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_02_0014__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_02_0014__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0014__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_02_0014__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_02_0014__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_02_0014__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_li2033132135913"><span>In the <span class="uicontrol" id="gaussdb_02_0014__uicontrol59891453814"><b>DB Instance Information</b></span> area on the <strong id="gaussdb_02_0014__b139901753516">Basic Information</strong> page, click <span><img id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_image197254186415" src="en-us_image_0000001352538904.png"></span> in the <strong id="gaussdb_02_0014__b189918532113">SSL</strong> field to download the root certificate or certificate bundle.</span></li><li id="gaussdb_02_0014__li84875782016"><span>Import the root certificate to the Linux OS on the ECS.</span><p><p id="gaussdb_02_0014__p11688163783412">For details, see <a href="gaussdb_faq_0010.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></p> <div class="section" id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_en-us_topic_0153118658_section335618164205"><h4 class="sectiontitle">Using SSL to Connect to a DB Instance</h4><ol id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_en-us_topic_0153118658_ol9899222162618"><li id="gaussdb_02_0014__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_02_0014__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_02_0014__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0014__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_02_0014__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_02_0014__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_02_0014__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_li2033132135913"><span>In the <span class="uicontrol" id="gaussdb_02_0014__uicontrol59891453814"><b>DB Instance Information</b></span> area on the <strong id="gaussdb_02_0014__b139901753516">Basic Information</strong> page, click <span><img id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_image197254186415" src="en-us_image_0000001352538904.png"></span> in the <strong id="gaussdb_02_0014__b189918532113">SSL</strong> field to download the root certificate or certificate bundle.</span></li><li id="gaussdb_02_0014__li84875782016"><span>Import the root certificate to the Linux OS on the ECS.</span><p><p id="gaussdb_02_0014__p11688163783412">For details, see <a href="gaussdb_faq_0010.html">How Can I Import the Root Certificate to a Windows or Linux OS?</a></p>
</p></li><li id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_en-us_topic_0153118658_li47772152307"><span>Connect to a DB instance. The Linux OS is assumed in this example.</span><p><div class="p" id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_p934734613117"><strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_abecce5c0334a48b89ec244bae0261d8e">mysql -h </strong>&lt;<em id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a7a6bd58865d945629cd5aaccec79ea15">hostName</em>&gt; <strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a64fd5d6a27ac4cdca07557dfdc711ef6">-P </strong><em id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_i996438155215">&lt;port&gt;</em> <strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a7f1f30f87b7e4833ad19d34bfd0b98a0">-u </strong>&lt;<em id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_aab7fc4200c8444ce84eb789f09d5400d">userName</em>&gt; <strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a7a0c62367aea4c7788824ed1a72385eb">-p</strong> <strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_ac45fcb3543ad494ca048e37d2c18009b">--ssl-ca=</strong>&lt;<em id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a1a7a070c17ed409bb27859594b226dc4">caName</em>&gt; </p></li><li id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_en-us_topic_0153118658_li47772152307"><span>Connect to a DB instance. The Linux OS is assumed in this example.</span><p><div class="p" id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_p934734613117"><strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_abecce5c0334a48b89ec244bae0261d8e">mysql -h </strong>&lt;<em id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a7a6bd58865d945629cd5aaccec79ea15">hostName</em>&gt; <strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a64fd5d6a27ac4cdca07557dfdc711ef6">-P </strong><em id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_i996438155215">&lt;port&gt;</em> <strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a7f1f30f87b7e4833ad19d34bfd0b98a0">-u </strong>&lt;<em id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_aab7fc4200c8444ce84eb789f09d5400d">userName</em>&gt; <strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a7a0c62367aea4c7788824ed1a72385eb">-p</strong> <strong id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_ac45fcb3543ad494ca048e37d2c18009b">--ssl-ca=</strong>&lt;<em id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_a1a7a070c17ed409bb27859594b226dc4">caName</em>&gt;
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_table385819434338" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameter description</caption><thead align="left"><tr id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_row1285974314331"><th align="left" class="cellrowborder" valign="top" width="21.2%" id="mcps1.3.4.2.6.2.1.10.2.3.1.1"><p id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_p13859124323319"><strong id="gaussdb_02_0014__en-us_topic_0172523144_b13128205317440">Parameter</strong></p> <div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_table385819434338" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameter description</caption><thead align="left"><tr id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_row1285974314331"><th align="left" class="cellrowborder" valign="top" width="21.2%" id="mcps1.3.4.2.6.2.1.10.2.3.1.1"><p id="gaussdb_02_0014__en-us_topic_0172523144_en-us_topic_0154555358_p13859124323319"><strong id="gaussdb_02_0014__en-us_topic_0172523144_b13128205317440">Parameter</strong></p>
</th> </th>

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</div> </div>
<div class="section" id="gaussdb_02_0015__en-us_topic_0171122739_section380043142120"><h4 class="sectiontitle">Precautions</h4><ul id="gaussdb_02_0015__en-us_topic_0171122739_ul383512621211"><li id="gaussdb_02_0015__en-us_topic_0171122739_li519405721219">Public accessibility reduces the security of DB instances. Therefore, exercise caution when enabling this function. To achieve a higher transmission rate and security level, you are advised to migrate your applications to the ECS that is in the same region as the <span id="gaussdb_02_0015__text3601019152016">GaussDB(for MySQL)</span> DB instance.</li></ul> <div class="section" id="gaussdb_02_0015__en-us_topic_0171122739_section380043142120"><h4 class="sectiontitle">Precautions</h4><ul id="gaussdb_02_0015__en-us_topic_0171122739_ul383512621211"><li id="gaussdb_02_0015__en-us_topic_0171122739_li519405721219">Public accessibility reduces the security of DB instances. Therefore, exercise caution when enabling this function. To achieve a higher transmission rate and security level, you are advised to migrate your applications to the ECS that is in the same region as the <span id="gaussdb_02_0015__text3601019152016">GaussDB(for MySQL)</span> DB instance.</li></ul>
</div> </div>
<div class="section" id="gaussdb_02_0015__en-us_topic_0171122739_section163851913174310"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0015__en-us_topic_0171122739_ol12603704105129"><li id="gaussdb_02_0015__li114342521119"><span>Log in to the management console.</span></li><li id="gaussdb_02_0015__li243425261113"><span>Click <span><img id="gaussdb_02_0015__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0015__li0435652111111"><span>Click <strong id="gaussdb_02_0015__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_02_0015__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_02_0015__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_02_0015__en-us_topic_0171122739_li193335257385"><span>On the <strong id="gaussdb_02_0015__en-us_topic_0171122739_b84235270615843">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_02_0015__li179050480593"><span>In the <span class="uicontrol" id="gaussdb_02_0015__uicontrol745417823115"><b>Network Information</b></span> area, click <strong id="gaussdb_02_0015__b945515810312">Bind</strong> in the Private IP Address field.</span></li><li id="gaussdb_02_0015__li16217497116"><span>In the displayed dialog box, select an EIP and click <span class="uicontrol" id="gaussdb_02_0015__uicontrol172191491511"><b>OK</b></span>.</span><p><div class="p" id="gaussdb_02_0015__p197286911113">If no available EIPs are displayed, click <span class="uicontrol" id="gaussdb_02_0015__en-us_topic_0171122739_uicontrol12347172510384_1"><b>View EIP</b></span> and obtain an EIP.<div class="notice" id="gaussdb_02_0015__en-us_topic_0171122739_note105582277381"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_02_0015__en-us_topic_0171122739_p12108153617536">You need to <span class="keyword" id="gaussdb_02_0015__keyword258262795215">configure security group rules</span> and enable specific IP addresses and ports to access the target DB instance. For details, see <a href="gaussdb_02_0013.html">Step 3: Configure Security Group Rules</a>.</p> <div class="section" id="gaussdb_02_0015__en-us_topic_0171122739_section163851913174310"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_02_0015__en-us_topic_0171122739_ol12603704105129"><li id="gaussdb_02_0015__li114342521119"><span>Log in to the management console.</span></li><li id="gaussdb_02_0015__li243425261113"><span>Click <span><img id="gaussdb_02_0015__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_02_0015__li0435652111111"><span>Click <strong id="gaussdb_02_0015__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_02_0015__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_02_0015__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_02_0015__en-us_topic_0171122739_li193335257385"><span>On the <strong id="gaussdb_02_0015__en-us_topic_0171122739_b84235270615843">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_02_0015__li179050480593"><span>In the <span class="uicontrol" id="gaussdb_02_0015__uicontrol745417823115"><b>Network Information</b></span> area, click <strong id="gaussdb_02_0015__b945515810312">Bind</strong> in the Private IP Address field.</span></li><li id="gaussdb_02_0015__li16217497116"><span>In the displayed dialog box, select an EIP and click <span class="uicontrol" id="gaussdb_02_0015__uicontrol172191491511"><b>OK</b></span>.</span><p><div class="p" id="gaussdb_02_0015__p197286911113">If no available EIPs are displayed, click <span class="uicontrol" id="gaussdb_02_0015__en-us_topic_0171122739_uicontrol12347172510384_1"><b>View EIP</b></span> and obtain an EIP.<div class="notice" id="gaussdb_02_0015__en-us_topic_0171122739_note105582277381"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_02_0015__en-us_topic_0171122739_p12108153617536">You need to <span class="keyword" id="gaussdb_02_0015__keyword258262795215">configure security group rules</span> and enable specific IP addresses and ports to access the target DB instance. For details, see <a href="gaussdb_02_0013.html">Step 3: Configure Security Group Rules</a>.</p>
</div></div> </div></div>
</div> </div>
</p></li><li id="gaussdb_02_0015__en-us_topic_0171122739_li1333620544274"><span>On the <strong id="gaussdb_02_0015__b955374632611">EIPs</strong> page, view the EIP that has been bound to the DB instance.</span></li></ol> </p></li><li id="gaussdb_02_0015__en-us_topic_0171122739_li1333620544274"><span>On the <strong id="gaussdb_02_0015__b955374632611">EIPs</strong> page, view the EIP that has been bound to the DB instance.</span></li></ol>

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<a name="gaussdb_03_0007"></a><a name="gaussdb_03_0007"></a> <a name="gaussdb_03_0007"></a><a name="gaussdb_03_0007"></a>
<h1 class="topictitle1">Migrating Data to <span id="text2005348360">GaussDB(for MySQL)</span> Using mysqldump</h1> <h1 class="topictitle1">Migrating Data to <span id="text2005348360">GaussDB(for MySQL)</span> Using mysqldump</h1>
<div id="body8662426"><div class="section" id="gaussdb_03_0007__en-us_topic_0171122750_section8743122116813"><h4 class="sectiontitle">Preparing for Data Migration</h4><p id="gaussdb_03_0007__en-us_topic_0171122750_p18884729686"><span id="gaussdb_03_0007__text674715365375">GaussDB(for MySQL)</span> supports public accessibility. You can access <span id="gaussdb_03_0007__text52634142118">GaussDB(for MySQL)</span> through a private network or EIP.</p> <div id="body8662426"><div class="section" id="gaussdb_03_0007__en-us_topic_0171122750_section8743122116813"><h4 class="sectiontitle">Preparing for Data Migration</h4><p id="gaussdb_03_0007__en-us_topic_0171122750_p18884729686"><span id="gaussdb_03_0007__text1640125610528">GaussDB(for MySQL)</span> supports public accessibility. You can access <span id="gaussdb_03_0007__text640856205214">GaussDB(for MySQL)</span> through an ECS or EIP.</p>
<ol id="gaussdb_03_0007__en-us_topic_0171122750_ol139261637897"><li id="gaussdb_03_0007__en-us_topic_0171122750_li139261837895">Prepare an ECS in the same VPC subnet as <span id="gaussdb_03_0007__text108939212120">GaussDB(for MySQL)</span> or prepare a device for accessing <span id="gaussdb_03_0007__text0800541103614">GaussDB(for MySQL)</span> over a public network.<ul id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_u674d5d5f798e42318e22f1b6c1da004c"><li id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_le76498bda63d4a85a9fec893dcf446e7">To connect to a DB instance through an ECS, you must first create an ECS.<p id="gaussdb_03_0007__p0911458195810"><a name="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_le76498bda63d4a85a9fec893dcf446e7"></a><a name="en-us_topic_0171122750_en-us_topic_0171122382_le76498bda63d4a85a9fec893dcf446e7"></a>For details on how to create and log in to an ECS, see descriptions about creating an ECS and logging in an ECS in the <em id="gaussdb_03_0007__i269435619466">Elastic Cloud Server User Guide</em>.</p> <ol id="gaussdb_03_0007__en-us_topic_0171122750_ol139261637897"><li id="gaussdb_03_0007__en-us_topic_0171122750_li139261837895">Prepare an ECS in the same VPC subnet as <span id="gaussdb_03_0007__text108939212120">GaussDB(for MySQL)</span> or prepare a device for accessing <span id="gaussdb_03_0007__text0800541103614">GaussDB(for MySQL)</span> over a public network.<ul id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_u674d5d5f798e42318e22f1b6c1da004c"><li id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_le76498bda63d4a85a9fec893dcf446e7">To connect to a DB instance through an ECS, you must first create an ECS.<p id="gaussdb_03_0007__p0911458195810"><a name="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_le76498bda63d4a85a9fec893dcf446e7"></a><a name="en-us_topic_0171122750_en-us_topic_0171122382_le76498bda63d4a85a9fec893dcf446e7"></a>For details on how to create and log in to an ECS, see descriptions about creating an ECS and logging in an ECS in the <em id="gaussdb_03_0007__i269435619466">Elastic Cloud Server User Guide</em>.</p>
</li><li id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_ldd1da393e9a045899ece19a659bc8f17">To connect to a DB instance through an EIP, you must:<ol type="a" id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_oeb5130b0f58e40e6a1f4c00aef40d484"><li id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_lb14b274cbccd4e7e82662778edffcf3d">Bind the EIP to the DB instance. For details, see <a href="gaussdb_03_0011.html#gaussdb_03_0011__en-us_topic_0171122283_section3199593620428">Binding an EIP</a>.</li><li id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_ld70567b63d964e809cd3d3f673625ed3">Ensure that the local device can access the EIP that has been bound to the DB instance.</li></ol> </li><li id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_ldd1da393e9a045899ece19a659bc8f17">To connect to a DB instance through an EIP, you must:<ol type="a" id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_oeb5130b0f58e40e6a1f4c00aef40d484"><li id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_lb14b274cbccd4e7e82662778edffcf3d">Bind the EIP to the DB instance. For details, see <a href="gaussdb_03_0011.html#gaussdb_03_0011__en-us_topic_0171122283_section3199593620428">Binding an EIP</a>.</li><li id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122382_ld70567b63d964e809cd3d3f673625ed3">Ensure that the local device can access the EIP that has been bound to the DB instance.</li></ol>
</li></ul> </li></ul>
@ -29,7 +29,7 @@
<p id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a5220a0c335aa4905a751b960032cfd55">Enter the database password as prompted.</p> <p id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a5220a0c335aa4905a751b960032cfd55">Enter the database password as prompted.</p>
<p id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a0ed339d9c740476082be1d62ccfb9171">Example:</p> <p id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a0ed339d9c740476082be1d62ccfb9171">Example:</p>
<p id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_af11253eefc3d461393216b59f22f5b40"><strong id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a2a5292086fa84033afb6f8d2e45142a0">mysqldump --databases gaussdb --single-transaction --hex-blob --set-gtid-purged=OFF --no-create-info --skip-triggers -u root -p -h 192.168.151.18 -P <strong id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a666dfb267bcf46f7ae4fb7671666d86e">3306</strong> -r dump-data.sql</strong></p> <p id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_af11253eefc3d461393216b59f22f5b40"><strong id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a2a5292086fa84033afb6f8d2e45142a0">mysqldump --databases gaussdb --single-transaction --hex-blob --set-gtid-purged=OFF --no-create-info --skip-triggers -u root -p -h 192.168.151.18 -P <strong id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a666dfb267bcf46f7ae4fb7671666d86e">3306</strong> -r dump-data.sql</strong></p>
<p id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a5eb9eef196f54421bd4c4e0a71613843">After this command is executed, the <strong id="gaussdb_03_0007__b1205050829">dump-data.sql</strong> file will be generated.</p> <p id="gaussdb_03_0007__en-us_topic_0171122750_en-us_topic_0171122585_a5eb9eef196f54421bd4c4e0a71613843">After this command is executed, the <strong id="gaussdb_03_0007__b1126986879">dump-data.sql</strong> file will be generated.</p>
</p></li></ol> </p></li></ol>
</div> </div>
<div class="section" id="gaussdb_03_0007__en-us_topic_0171122750_section9816229161211"><h4 class="sectiontitle">Importing Data</h4><p id="gaussdb_03_0007__en-us_topic_0171122750_p135103395128">You can use a client to connect to a <span id="gaussdb_03_0007__text77985115217">GaussDB(for MySQL)</span> DB instance through an ECS or a device and then import the exported SQL file into that DB instance.</p> <div class="section" id="gaussdb_03_0007__en-us_topic_0171122750_section9816229161211"><h4 class="sectiontitle">Importing Data</h4><p id="gaussdb_03_0007__en-us_topic_0171122750_p135103395128">You can use a client to connect to a <span id="gaussdb_03_0007__text77985115217">GaussDB(for MySQL)</span> DB instance through an ECS or a device and then import the exported SQL file into that DB instance.</p>

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</div> </div>
<div class="section" id="gaussdb_03_0011__en-us_topic_0171122283_section25123869979"><h4 class="sectiontitle">Prerequisites</h4><ul id="gaussdb_03_0011__en-us_topic_0171122283_ul176448639523"><li id="gaussdb_03_0011__en-us_topic_0171122283_li16430428125916">You have assigned an EIP on the VPC console.</li><li id="gaussdb_03_0011__en-us_topic_0171122283_li199477989523">If a DB instance has already been bound with an EIP, you must unbind the EIP from the DB instance first before binding a new EIP to it.</li></ul> <div class="section" id="gaussdb_03_0011__en-us_topic_0171122283_section25123869979"><h4 class="sectiontitle">Prerequisites</h4><ul id="gaussdb_03_0011__en-us_topic_0171122283_ul176448639523"><li id="gaussdb_03_0011__en-us_topic_0171122283_li16430428125916">You have assigned an EIP on the VPC console.</li><li id="gaussdb_03_0011__en-us_topic_0171122283_li199477989523">If a DB instance has already been bound with an EIP, you must unbind the EIP from the DB instance first before binding a new EIP to it.</li></ul>
</div> </div>
<div class="section" id="gaussdb_03_0011__en-us_topic_0171122283_section3199593620428"><a name="gaussdb_03_0011__en-us_topic_0171122283_section3199593620428"></a><a name="en-us_topic_0171122283_section3199593620428"></a><h4 class="sectiontitle">Binding an EIP</h4><ol id="gaussdb_03_0011__en-us_topic_0171122739_ol12603704105129"><li id="gaussdb_03_0011__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0011__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0011__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0011__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0011__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0011__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0011__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0011__en-us_topic_0171122739_li193335257385"><span>On the <strong id="gaussdb_03_0011__b1757818475332">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_03_0011__b8324555124719">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_03_0011__li179050480593"><span>In the <span class="uicontrol" id="gaussdb_03_0011__uicontrol31921759125419"><b>Network Information</b></span> area, click <strong id="gaussdb_03_0011__b1019865918549">Bind</strong> in the <strong id="gaussdb_03_0011__b192914516247">Public IP Address (EIP)</strong> field.</span></li><li id="gaussdb_03_0011__li16217497116"><span>In the displayed dialog box, select an EIP and click <span class="uicontrol" id="gaussdb_03_0011__uicontrol325212113419"><b>OK</b></span>.</span><p><div class="p" id="gaussdb_03_0011__p197286911113">If no available EIPs are displayed, click <span class="uicontrol" id="gaussdb_03_0011__uicontrol95400171559"><b>View EIP</b></span> and obtain an EIP.<div class="notice" id="gaussdb_03_0011__en-us_topic_0171122739_note105582277381"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0011__en-us_topic_0171122739_p12108153617536">You need to <span class="keyword" id="gaussdb_03_0011__keyword15791274558">configure security group rules</span> and enable specific IP addresses and ports to access the target DB instance.</p> <div class="section" id="gaussdb_03_0011__en-us_topic_0171122283_section3199593620428"><a name="gaussdb_03_0011__en-us_topic_0171122283_section3199593620428"></a><a name="en-us_topic_0171122283_section3199593620428"></a><h4 class="sectiontitle">Binding an EIP</h4><ol id="gaussdb_03_0011__en-us_topic_0171122739_ol12603704105129"><li id="gaussdb_03_0011__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0011__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0011__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0011__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0011__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0011__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0011__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0011__en-us_topic_0171122739_li193335257385"><span>On the <strong id="gaussdb_03_0011__b1757818475332">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_03_0011__b8324555124719">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_03_0011__li179050480593"><span>In the <span class="uicontrol" id="gaussdb_03_0011__uicontrol31921759125419"><b>Network Information</b></span> area, click <strong id="gaussdb_03_0011__b1019865918549">Bind</strong> in the <strong id="gaussdb_03_0011__b192914516247">Public IP Address (EIP)</strong> field.</span></li><li id="gaussdb_03_0011__li16217497116"><span>In the displayed dialog box, select an EIP and click <span class="uicontrol" id="gaussdb_03_0011__uicontrol325212113419"><b>OK</b></span>.</span><p><div class="p" id="gaussdb_03_0011__p197286911113">If no available EIPs are displayed, click <span class="uicontrol" id="gaussdb_03_0011__uicontrol95400171559"><b>View EIP</b></span> and obtain an EIP.<div class="notice" id="gaussdb_03_0011__en-us_topic_0171122739_note105582277381"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0011__en-us_topic_0171122739_p12108153617536">You need to <span class="keyword" id="gaussdb_03_0011__keyword15791274558">configure security group rules</span> and enable specific IP addresses and ports to access the target DB instance.</p>
</div></div> </div></div>
</div> </div>
</p></li><li id="gaussdb_03_0011__en-us_topic_0171122739_li1333620544274"><span>On the <strong id="gaussdb_03_0011__b146071755195513">EIPs</strong> page, view the EIP that has been bound to the DB instance.</span><p><p id="gaussdb_03_0011__en-us_topic_0171122739_p24801631273">To unbind the EIP from the DB instance, see <a href="#gaussdb_03_0011__en-us_topic_0171122283_section186511510267">Unbinding an EIP</a>.</p> </p></li><li id="gaussdb_03_0011__en-us_topic_0171122739_li1333620544274"><span>On the <strong id="gaussdb_03_0011__b146071755195513">EIPs</strong> page, view the EIP that has been bound to the DB instance.</span><p><p id="gaussdb_03_0011__en-us_topic_0171122739_p24801631273">To unbind the EIP from the DB instance, see <a href="#gaussdb_03_0011__en-us_topic_0171122283_section186511510267">Unbinding an EIP</a>.</p>

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<h1 class="topictitle1">Changing a Database Port</h1> <h1 class="topictitle1">Changing a Database Port</h1>
<div id="body8662426"><div class="section" id="gaussdb_03_0012__en-us_topic_0171122564_section241540814823"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0012__p48604413223">You can <span class="keyword" id="gaussdb_03_0012__keyword68609492220">change the database port</span> of a <span id="gaussdb_03_0012__text105701313103616">GaussDB(for MySQL)</span> instance. The change applies to the ports of the primary node and read replicas, and may affect services intermittently.</p> <div id="body8662426"><div class="section" id="gaussdb_03_0012__en-us_topic_0171122564_section241540814823"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0012__p48604413223">You can <span class="keyword" id="gaussdb_03_0012__keyword68609492220">change the database port</span> of a <span id="gaussdb_03_0012__text105701313103616">GaussDB(for MySQL)</span> instance. The change applies to the ports of the primary node and read replicas, and may affect services intermittently.</p>
</div> </div>
<div class="section" id="gaussdb_03_0012__section124235101514"><h4 class="sectiontitle">Constraints</h4><p id="gaussdb_03_0012__p1889413620426">The port number of the proxy instance is independent of that of the instance. Changing the port number of the DB instance does not change the port number of the proxy instance.</p> <div class="section" id="gaussdb_03_0012__section124235101514"><h4 class="sectiontitle">Constraints</h4><p id="gaussdb_03_0012__p1889413620426">Changing the database port of a DB instance will only affect access through its IP address. If a DB instance is accessed through a proxy instance, the database port of the proxy instance cannot be changed, which defaults to <strong id="gaussdb_03_0012__b18695182417415">3306</strong>.</p>
</div> </div>
<div class="section" id="gaussdb_03_0012__en-us_topic_0171122564_section45421719172826"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0012__en-us_topic_0171122564_ol36506495172844"><li id="gaussdb_03_0012__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0012__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0012__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0012__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0012__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0012__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0012__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0012__en-us_topic_0171122564_li61161897172844"><span>On the <strong id="gaussdb_03_0012__b15894987268">Instances</strong> page, click the target DB instance. The <span class="uicontrol" id="gaussdb_03_0012__uicontrol2823104025213"><b>Basic Information</b></span> page is displayed.</span></li><li id="gaussdb_03_0012__en-us_topic_0171122564_li36398892172958"><span>In the <strong id="gaussdb_03_0012__en-us_topic_0171122564_b0841151485715">Network Information</strong> area, click <span><img id="gaussdb_03_0012__image1063335418584" src="en-us_image_0000001352378996.png"></span> in the <span class="uicontrol" id="gaussdb_03_0012__en-us_topic_0171122564_uicontrol1384371465712"><b>Database Port</b></span> field.</span><p><div class="p" id="gaussdb_03_0012__p234195881216">The <span id="gaussdb_03_0012__text1488555137">GaussDB(for MySQL)</span> database port ranges from 1025 to 65534, excluding 5342, 5343, 5344, 5345, 12017, 20000, 20201, and 20202, which are occupied by the system and cannot be used.<ul id="gaussdb_03_0012__ul95201955151215"><li id="gaussdb_03_0012__li951995511217">To submit the change, click <span><img id="gaussdb_03_0012__image1951975517126" src="en-us_image_0000001352538852.png"></span>.<ul id="gaussdb_03_0012__ul851911554120"><li id="gaussdb_03_0012__li9519105501212">In the dialog box, click <strong id="gaussdb_03_0012__en-us_topic_0171122564_b842352706203810">Yes</strong>.<ol type="a" id="gaussdb_03_0012__ol19519355191212"><li id="gaussdb_03_0012__li12519105581211">If you change the database port of a DB instance, the ports of the primary node and read replicas are also changed accordingly and all of them are rebooted.</li><li id="gaussdb_03_0012__li14519125541218">This process takes about 1–5 minutes.</li></ol> <div class="section" id="gaussdb_03_0012__en-us_topic_0171122564_section45421719172826"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0012__en-us_topic_0171122564_ol36506495172844"><li id="gaussdb_03_0012__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0012__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0012__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0012__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0012__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0012__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0012__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0012__en-us_topic_0171122564_li61161897172844"><span>On the <strong id="gaussdb_03_0012__b15894987268">Instances</strong> page, click the target DB instance to go to the <span class="uicontrol" id="gaussdb_03_0012__uicontrol2823104025213"><b>Basic Information</b></span> page.</span></li><li id="gaussdb_03_0012__en-us_topic_0171122564_li36398892172958"><span>In the <strong id="gaussdb_03_0012__en-us_topic_0171122564_b0841151485715">Network Information</strong> area, click <span><img id="gaussdb_03_0012__image1063335418584" src="en-us_image_0000001352378996.png"></span> in the <span class="uicontrol" id="gaussdb_03_0012__en-us_topic_0171122564_uicontrol1384371465712"><b>Database Port</b></span> field.</span><p><div class="p" id="gaussdb_03_0012__p234195881216">The <span id="gaussdb_03_0012__text1488555137">GaussDB(for MySQL)</span> database port ranges from 1025 to 65534, excluding 5342, 5343, 5344, 5345, 12017, 20000, 20201, and 20202, which are occupied by the system and cannot be used.<ul id="gaussdb_03_0012__ul95201955151215"><li id="gaussdb_03_0012__li951995511217">To submit the change, click <span><img id="gaussdb_03_0012__image1951975517126" src="en-us_image_0000001352538852.png"></span>.<ul id="gaussdb_03_0012__ul851911554120"><li id="gaussdb_03_0012__li9519105501212">In the dialog box, click <strong id="gaussdb_03_0012__en-us_topic_0171122564_b842352706203810">Yes</strong>.<ol type="a" id="gaussdb_03_0012__ol19519355191212"><li id="gaussdb_03_0012__li12519105581211">If you change the database port of a DB instance, the ports of the primary node and read replicas are also changed accordingly and all of them are rebooted.</li><li id="gaussdb_03_0012__li14519125541218">This process takes about 1–5 minutes.</li></ol>
</li></ul> </li></ul>
</li><li id="gaussdb_03_0012__li95203556122">To cancel the change, click <span><img id="gaussdb_03_0012__image85201755181216" src="en-us_image_0000001403138693.png"></span>.</li></ul> </li><li id="gaussdb_03_0012__li95203556122">To cancel the change, click <span><img id="gaussdb_03_0012__image85201755181216" src="en-us_image_0000001403138693.png"></span>.</li></ul>
</div> </div>

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<h1 class="topictitle1">Viewing Error Logs</h1> <h1 class="topictitle1">Viewing Error Logs</h1>
<div id="body8662426"><p id="gaussdb_03_0018__en-us_topic_0171122292_p46611462183014"><span id="gaussdb_03_0018__text105701313103616">GaussDB(for MySQL)</span> log management allows you to view database-level logs, including error logs and slow SQL query logs.</p> <div id="body8662426"><p id="gaussdb_03_0018__en-us_topic_0171122292_p46611462183014"><span id="gaussdb_03_0018__text105701313103616">GaussDB(for MySQL)</span> log management allows you to view database-level logs, including error logs and slow SQL query logs.</p>
<div class="section" id="gaussdb_03_0018__en-us_topic_0171122292_s709632a0b9ab4a63992268328887e81c"><h4 class="sectiontitle">Viewing Log Details</h4><ol id="gaussdb_03_0018__en-us_topic_0171122292_o8947fe58449a4661be32760540f4d928"><li id="gaussdb_03_0018__li427521291312"><span>Log in to the management console.</span></li><li id="gaussdb_03_0018__li152751123137"><span>Click <span><img id="gaussdb_03_0018__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0018__li112751012151319"><span>Click <strong id="gaussdb_03_0018__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0018__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0018__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0018__en-us_topic_0171122292_l91d16c8ad21e4b1dbc8f2448007ca62c"><span>On the <strong id="gaussdb_03_0018__en-us_topic_0171122292_b84235270615843">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_03_0018__b5530104718267">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_03_0018__li174993116615"><span>In the navigation pane on the left, choose <span class="uicontrol" id="gaussdb_03_0018__uicontrol95807129234"><b>Logs</b></span>. </span></li><li id="gaussdb_03_0018__en-us_topic_0171122292_li4999142231010"><span>On the <strong id="gaussdb_03_0018__b051014451238">Error Logs</strong> page, select a node and view the error log details of the node, including:</span><p><ul id="gaussdb_03_0018__en-us_topic_0171122292_ul98461942172115"><li id="gaussdb_03_0018__li3097579594147">Error logs in different time periods</li><li id="gaussdb_03_0018__en-us_topic_0171122292_li75911913191411">Error logs of the following levels:<ul id="gaussdb_03_0018__en-us_topic_0171122292_ul81141425182418"><li id="gaussdb_03_0018__li66912385912">ALL</li><li id="gaussdb_03_0018__li52707113916">INFO</li><li id="gaussdb_03_0018__li65781618594">WARNING</li><li id="gaussdb_03_0018__en-us_topic_0171122292_li111412516246">ERROR</li><li id="gaussdb_03_0018__en-us_topic_0171122292_li121141725152418">FATAL</li><li id="gaussdb_03_0018__li1716119322916">NOTE</li></ul> <div class="section" id="gaussdb_03_0018__en-us_topic_0171122292_s709632a0b9ab4a63992268328887e81c"><h4 class="sectiontitle">Viewing Log Details</h4><ol id="gaussdb_03_0018__en-us_topic_0171122292_o8947fe58449a4661be32760540f4d928"><li id="gaussdb_03_0018__li427521291312"><span>Log in to the management console.</span></li><li id="gaussdb_03_0018__li152751123137"><span>Click <span><img id="gaussdb_03_0018__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0018__li112751012151319"><span>Click <strong id="gaussdb_03_0018__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0018__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0018__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0018__en-us_topic_0171122292_l91d16c8ad21e4b1dbc8f2448007ca62c"><span>On the <strong id="gaussdb_03_0018__en-us_topic_0171122292_b84235270615843">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_03_0018__b5530104718267">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_03_0018__li174993116615"><span>In the navigation pane on the left, choose <span class="uicontrol" id="gaussdb_03_0018__uicontrol95807129234"><b>Logs</b></span>. </span></li><li id="gaussdb_03_0018__en-us_topic_0171122292_li4999142231010"><span>On the <strong id="gaussdb_03_0018__b051014451238">Error Logs</strong> page, select a node and view the error log details of the node, including:</span><p><ul id="gaussdb_03_0018__en-us_topic_0171122292_ul98461942172115"><li id="gaussdb_03_0018__li3097579594147">Error logs in different time periods</li><li id="gaussdb_03_0018__en-us_topic_0171122292_li75911913191411">Error logs of the following levels:<ul id="gaussdb_03_0018__en-us_topic_0171122292_ul81141425182418"><li id="gaussdb_03_0018__li66912385912">ALL</li><li id="gaussdb_03_0018__li52707113916">INFO</li><li id="gaussdb_03_0018__li65781618594">WARNING</li><li id="gaussdb_03_0018__en-us_topic_0171122292_li111412516246">ERROR</li><li id="gaussdb_03_0018__en-us_topic_0171122292_li121141725152418">FATAL</li><li id="gaussdb_03_0018__li1716119322916">NOTE</li></ul>
</li></ul> </li></ul>
</p></li></ol> </p></li></ol>
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<div class="p" id="gaussdb_03_0019__en-us_topic_0171122308_p1036918352521"><span id="gaussdb_03_0019__text1612538304">GaussDB(for MySQL)</span> supports the following statement types:<ul id="gaussdb_03_0019__en-us_topic_0171122308_ul15606971754"><li id="gaussdb_03_0019__en-us_topic_0171122308_li36061471155">SELECT</li><li id="gaussdb_03_0019__en-us_topic_0171122308_li56061171254">INSERT</li><li id="gaussdb_03_0019__en-us_topic_0171122308_li760677251">UPDATE</li><li id="gaussdb_03_0019__en-us_topic_0171122308_li96061771453">DELETE</li><li id="gaussdb_03_0019__en-us_topic_0171122308_li14606197250">CREATE</li><li id="gaussdb_03_0019__li6985466186">ALTER</li><li id="gaussdb_03_0019__li19969912131812">DROP</li></ul> <div class="p" id="gaussdb_03_0019__en-us_topic_0171122308_p1036918352521"><span id="gaussdb_03_0019__text1612538304">GaussDB(for MySQL)</span> supports the following statement types:<ul id="gaussdb_03_0019__en-us_topic_0171122308_ul15606971754"><li id="gaussdb_03_0019__en-us_topic_0171122308_li36061471155">SELECT</li><li id="gaussdb_03_0019__en-us_topic_0171122308_li56061171254">INSERT</li><li id="gaussdb_03_0019__en-us_topic_0171122308_li760677251">UPDATE</li><li id="gaussdb_03_0019__en-us_topic_0171122308_li96061771453">DELETE</li><li id="gaussdb_03_0019__en-us_topic_0171122308_li14606197250">CREATE</li><li id="gaussdb_03_0019__li6985466186">ALTER</li><li id="gaussdb_03_0019__li19969912131812">DROP</li></ul>
</div> </div>
</div> </div>
<div class="section" id="gaussdb_03_0019__en-us_topic_0171122308_section467223910567"><h4 class="sectiontitle">Viewing Log Details</h4><ol id="gaussdb_03_0019__en-us_topic_0171122308_ol105901371552"><li id="gaussdb_03_0019__li23934243136"><span>Log in to the management console.</span></li><li id="gaussdb_03_0019__li83931424131319"><span>Click <span><img id="gaussdb_03_0019__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0019__li19393172461312"><span>Click <strong id="gaussdb_03_0019__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0019__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0019__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0019__en-us_topic_0171122308_li76061771959"><span>On the <strong id="gaussdb_03_0019__b24892018122411">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_03_0019__b164891518152414">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_03_0019__li174993116615"><span>In the navigation pane on the left, choose <span class="uicontrol" id="gaussdb_03_0019__uicontrol12771248172613"><b>Logs</b></span>. </span></li><li id="gaussdb_03_0019__en-us_topic_0171122308_li99031629175618"><span>On the <span class="uicontrol" id="gaussdb_03_0019__uicontrol173860614315933"><b>Slow Query Logs</b></span> page, view the slow query log details.</span><p><p id="gaussdb_03_0019__en-us_topic_0171122308_p45752226577">You can view the slow query log records of a specified execution statement type or a specific time period.</p> <div class="section" id="gaussdb_03_0019__en-us_topic_0171122308_section467223910567"><h4 class="sectiontitle">Viewing Log Details</h4><ol id="gaussdb_03_0019__en-us_topic_0171122308_ol105901371552"><li id="gaussdb_03_0019__li23934243136"><span>Log in to the management console.</span></li><li id="gaussdb_03_0019__li83931424131319"><span>Click <span><img id="gaussdb_03_0019__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0019__li19393172461312"><span>Click <strong id="gaussdb_03_0019__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0019__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0019__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0019__en-us_topic_0171122308_li76061771959"><span>On the <strong id="gaussdb_03_0019__b24892018122411">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_03_0019__b164891518152414">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_03_0019__li174993116615"><span>In the navigation pane on the left, choose <span class="uicontrol" id="gaussdb_03_0019__uicontrol12771248172613"><b>Logs</b></span>. </span></li><li id="gaussdb_03_0019__en-us_topic_0171122308_li99031629175618"><span>On the <span class="uicontrol" id="gaussdb_03_0019__uicontrol173860614315933"><b>Slow Query Logs</b></span> page, view the slow query log details.</span><p><p id="gaussdb_03_0019__en-us_topic_0171122308_p45752226577">You can view the slow query log records of a specified execution statement type or a specific time period.</p>
</p></li></ol> </p></li></ol>
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<h1 class="topictitle1">Changing a DB Instance Name</h1> <h1 class="topictitle1">Changing a DB Instance Name</h1>
<div id="body8662426"><div class="section" id="gaussdb_03_0032__en-us_topic_0171122553_section241540814823"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0032__en-us_topic_0171122553_p4215797114827">You can change the name of a <span id="gaussdb_03_0032__text105701313103616">GaussDB(for MySQL)</span> DB instance.</p> <div id="body8662426"><div class="section" id="gaussdb_03_0032__en-us_topic_0171122553_section241540814823"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0032__en-us_topic_0171122553_p4215797114827">You can change the name of a <span id="gaussdb_03_0032__text105701313103616">GaussDB(for MySQL)</span> DB instance.</p>
</div> </div>
<div class="section" id="gaussdb_03_0032__en-us_topic_0171122553_section45421719172826"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0032__en-us_topic_0171122553_ol36506495172844"><li id="gaussdb_03_0032__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0032__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0032__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0032__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0032__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0032__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0032__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0032__en-us_topic_0171122553_li39994717339"><span>On the <strong id="gaussdb_03_0032__b8639575516">Instances</strong> page, locate the instance name and click <span><img id="gaussdb_03_0032__image10639972055" src="en-us_image_0000001402858869.png"></span> in the <strong id="gaussdb_03_0032__b86391771059">Name/ID</strong> column to edit the instance name.</span><p><ul id="gaussdb_03_0032__ul1090918523514"><li id="gaussdb_03_0032__li1290911521851">The DB instance name must start with a letter and consist of 4 to 64 characters. Only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_) are allowed.</li><li id="gaussdb_03_0032__li890919526510">When changing the instance name, you can determine whether to select <span class="uicontrol" id="gaussdb_03_0032__uicontrol192222462913"><b>Change node names synchronously</b></span> as required. If this option is selected, the names of the corresponding nodes are changed when the instance name is changed. If this option is not selected, only the instance name is changed, and the corresponding node names are not changed.</li><li id="gaussdb_03_0032__li2909552157">If you want to submit the change, click <strong id="gaussdb_03_0032__b1448511371230">OK</strong>. If you want to cancel the change, click <strong id="gaussdb_03_0032__b07143122413">Cancel</strong>.</li></ul> <div class="section" id="gaussdb_03_0032__en-us_topic_0171122553_section45421719172826"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0032__en-us_topic_0171122553_ol36506495172844"><li id="gaussdb_03_0032__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0032__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0032__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0032__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0032__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0032__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0032__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0032__en-us_topic_0171122553_li39994717339"><span>On the <strong id="gaussdb_03_0032__b8639575516">Instances</strong> page, locate the instance name and click <span><img id="gaussdb_03_0032__image10639972055" src="en-us_image_0000001402858869.png"></span> in the <strong id="gaussdb_03_0032__b86391771059">Name/ID</strong> column to edit the instance name.</span><p><ul id="gaussdb_03_0032__ul1090918523514"><li id="gaussdb_03_0032__li1290911521851">The DB instance name must start with a letter and consist of 4 to 64 characters. Only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_) are allowed.</li><li id="gaussdb_03_0032__li890919526510">When changing the instance name, you can determine whether to select <span class="uicontrol" id="gaussdb_03_0032__uicontrol192222462913"><b>Change node names synchronously</b></span> as required. If this option is selected, the names of the corresponding nodes are changed when the instance name is changed. If this option is not selected, only the instance name is changed, and the corresponding node names are not changed.</li><li id="gaussdb_03_0032__li2909552157">If you want to submit the change, click <strong id="gaussdb_03_0032__b1448511371230">OK</strong>. If you want to cancel the change, click <strong id="gaussdb_03_0032__b07143122413">Cancel</strong>.</li></ul>
</p></li><li id="gaussdb_03_0032__en-us_topic_0171122553_li7163133174316"><span>View the result of the change on the <span class="uicontrol" id="gaussdb_03_0032__en-us_topic_0171122553_uicontrol920993936193611"><b>Basic Information</b></span> page.</span></li></ol> </p></li><li id="gaussdb_03_0032__en-us_topic_0171122553_li7163133174316"><span>View the result of the change on the <span class="uicontrol" id="gaussdb_03_0032__en-us_topic_0171122553_uicontrol920993936193611"><b>Basic Information</b></span> page.</span></li></ol>
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<div class="notice" id="gaussdb_03_0040__en-us_topic_0171122427_note23420379111411"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><ul id="gaussdb_03_0040__en-us_topic_0171122427_ul4946142414619"><li id="gaussdb_03_0040__en-us_topic_0171122427_li16830644124612">Your database may be unavailable if, for example, data is being backed up or there are modifications being made.</li><li id="gaussdb_03_0040__en-us_topic_0171122427_li16946142419463">Rebooting a DB instance will cause service interruption. During this period, the DB instance status is <span class="uicontrol" id="gaussdb_03_0040__en-us_topic_0171122427_uicontrol1202673074172227"><b>Rebooting</b></span>.</li><li id="gaussdb_03_0040__en-us_topic_0171122427_li14400547162211">DB instances are not available when being rebooted. After the reboot completes, the cached memory will be automatically cleared. The DB instance needs to be warmed up to prevent congestion during peak hours.</li></ul> <div class="notice" id="gaussdb_03_0040__en-us_topic_0171122427_note23420379111411"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><ul id="gaussdb_03_0040__en-us_topic_0171122427_ul4946142414619"><li id="gaussdb_03_0040__en-us_topic_0171122427_li16830644124612">Your database may be unavailable if, for example, data is being backed up or there are modifications being made.</li><li id="gaussdb_03_0040__en-us_topic_0171122427_li16946142419463">Rebooting a DB instance will cause service interruption. During this period, the DB instance status is <span class="uicontrol" id="gaussdb_03_0040__en-us_topic_0171122427_uicontrol1202673074172227"><b>Rebooting</b></span>.</li><li id="gaussdb_03_0040__en-us_topic_0171122427_li14400547162211">DB instances are not available when being rebooted. After the reboot completes, the cached memory will be automatically cleared. The DB instance needs to be warmed up to prevent congestion during peak hours.</li></ul>
</div></div> </div></div>
<div class="section" id="gaussdb_03_0040__en-us_topic_0171122427_s22e3edfb1cdd4405b64cad650a1cf9a0"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0040__en-us_topic_0171122427_o2173078bb42c41a0b711d64c49e2565d"><li id="gaussdb_03_0040__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0040__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0040__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0040__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0040__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0040__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0040__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0040__en-us_topic_0171122427_l6b462da2019b41cd87b384de44f2bcc9"><span>On the <strong id="gaussdb_03_0040__b2353537114618">Instances</strong> page, locate the target DB instance and choose <span class="menucascade" id="gaussdb_03_0040__menucascade04919552354"><b><span class="uicontrol" id="gaussdb_03_0040__uicontrol0490125563511">More</span></b> &gt; <b><span class="uicontrol" id="gaussdb_03_0040__uicontrol849135518352">Reboot</span></b></span> in the <strong id="gaussdb_03_0040__b1649219551351">Operation</strong> column.</span><p><p id="gaussdb_03_0040__en-us_topic_0171122427_p145731244163811">Alternatively, click the target DB instance. On the displayed page, click <strong id="gaussdb_03_0040__en-us_topic_0171122427_b1181712376213">Reboot</strong> in the upper right corner of the page.</p> <div class="section" id="gaussdb_03_0040__en-us_topic_0171122427_s22e3edfb1cdd4405b64cad650a1cf9a0"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0040__en-us_topic_0171122427_o2173078bb42c41a0b711d64c49e2565d"><li id="gaussdb_03_0040__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0040__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0040__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0040__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0040__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0040__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0040__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0040__en-us_topic_0171122427_l6b462da2019b41cd87b384de44f2bcc9"><span>On the <strong id="gaussdb_03_0040__b2353537114618">Instances</strong> page, locate the target DB instance and choose <span class="menucascade" id="gaussdb_03_0040__menucascade04919552354"><b><span class="uicontrol" id="gaussdb_03_0040__uicontrol0490125563511">More</span></b> &gt; <b><span class="uicontrol" id="gaussdb_03_0040__uicontrol849135518352">Reboot</span></b></span> in the <strong id="gaussdb_03_0040__b1649219551351">Operation</strong> column.</span><p><p id="gaussdb_03_0040__en-us_topic_0171122427_p145731244163811">Alternatively, click the target DB instance. On the displayed page, click <strong id="gaussdb_03_0040__en-us_topic_0171122427_b1181712376213">Reboot</strong> in the upper right corner of the page.</p>
<p id="gaussdb_03_0040__en-us_topic_0171122427_p695624210389">The read replicas are also rebooted.</p> <p id="gaussdb_03_0040__en-us_topic_0171122427_p695624210389">The read replicas are also rebooted.</p>
</p></li><li id="gaussdb_03_0040__en-us_topic_0171122427_l6d35af1958874f2bb67501ccf04f2079"><span>In the displayed <span class="uicontrol" id="gaussdb_03_0040__en-us_topic_0171122427_uicontrol145364557593"><b>Reboot DB Instance</b></span> dialog box, click <span class="uicontrol" id="gaussdb_03_0040__en-us_topic_0171122427_uicontrol175371655125918"><b>Yes</b></span>.</span></li><li id="gaussdb_03_0040__en-us_topic_0171122427_li53158765111855"><span>Refresh the DB instance list and view the status of the DB instance. If its status is <strong id="gaussdb_03_0040__en-us_topic_0171122427_b842352706165735">Available</strong>, it has rebooted successfully.</span></li></ol> </p></li><li id="gaussdb_03_0040__en-us_topic_0171122427_l6d35af1958874f2bb67501ccf04f2079"><span>In the displayed <span class="uicontrol" id="gaussdb_03_0040__en-us_topic_0171122427_uicontrol145364557593"><b>Reboot DB Instance</b></span> dialog box, click <span class="uicontrol" id="gaussdb_03_0040__en-us_topic_0171122427_uicontrol175371655125918"><b>Yes</b></span>.</span></li><li id="gaussdb_03_0040__en-us_topic_0171122427_li53158765111855"><span>Refresh the DB instance list and view the status of the DB instance. If its status is <strong id="gaussdb_03_0040__en-us_topic_0171122427_b842352706165735">Available</strong>, it has rebooted successfully.</span></li></ol>
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<h1 class="topictitle1">Exporting DB Instance Information</h1> <h1 class="topictitle1">Exporting DB Instance Information</h1>
<div id="body8662426"><div class="section" id="gaussdb_03_0045__en-us_topic_0171122327_section17375927183"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0045__en-us_topic_0171122327_p16289929784">You can <span class="keyword" id="gaussdb_03_0045__en-us_topic_0171122327_keyword13319134918109">export a DB instance</span> list (containing all or selected DB instances) to view and analyze DB instance information.</p> <div id="body8662426"><div class="section" id="gaussdb_03_0045__en-us_topic_0171122327_section17375927183"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0045__en-us_topic_0171122327_p16289929784">You can <span class="keyword" id="gaussdb_03_0045__en-us_topic_0171122327_keyword13319134918109">export a DB instance</span> list (containing all or selected DB instances) to view and analyze DB instance information.</p>
</div> </div>
<div class="section" id="gaussdb_03_0045__en-us_topic_0171122327_section2855205020292"><h4 class="sectiontitle">Exporting Information About All DB Instances</h4><ol id="gaussdb_03_0045__en-us_topic_0171122327_ol181214526292"><li id="gaussdb_03_0045__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0045__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0045__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0045__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0045__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122327_li10812195211293"><span>On the <strong id="gaussdb_03_0045__en-us_topic_0171122327_b842352706191733">Instances</strong> page, click <span><img id="gaussdb_03_0045__image42062059161516" src="en-us_image_0000001403138737.png"></span> in the upper right corner of the page. In the displayed dialog box, select the items to be exported and click <span class="uicontrol" id="gaussdb_03_0045__en-us_topic_0171122327_uicontrol1674773893191920"><b>Export</b></span>.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122327_li17812205262919"><span>After the export task is complete, a .csv file is generated locally.</span></li></ol> <div class="section" id="gaussdb_03_0045__en-us_topic_0171122327_section2855205020292"><h4 class="sectiontitle">Exporting Information About All DB Instances</h4><ol id="gaussdb_03_0045__en-us_topic_0171122327_ol181214526292"><li id="gaussdb_03_0045__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0045__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0045__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0045__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0045__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122327_li10812195211293"><span>On the <strong id="gaussdb_03_0045__en-us_topic_0171122327_b842352706191733">Instances</strong> page, click <span><img id="gaussdb_03_0045__image42062059161516" src="en-us_image_0000001403138737.png"></span> in the upper right corner of the page. In the displayed dialog box, select the items to be exported and click <span class="uicontrol" id="gaussdb_03_0045__en-us_topic_0171122327_uicontrol1674773893191920"><b>Export</b></span>.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122327_li17812205262919"><span>After the export task is complete, a .csv file is generated locally.</span></li></ol>
</div> </div>
<div class="section" id="gaussdb_03_0045__en-us_topic_0171122327_section069716213575"><h4 class="sectiontitle">Exporting Information About Selected DB Instances</h4><ol id="gaussdb_03_0045__en-us_topic_0171122327_ol97541855161520"><li id="gaussdb_03_0045__li15910175216174"><span>Log in to the management console.</span></li><li id="gaussdb_03_0045__li129101152191719"><span>Click <span><img id="gaussdb_03_0045__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0045__li10910125231715"><span>Click <strong id="gaussdb_03_0045__gaussdb_02_0004_b4353193615913_1">Service List</strong>. Under <strong id="gaussdb_03_0045__gaussdb_02_0004_b163533362595_1">Database</strong>, click <strong id="gaussdb_03_0045__gaussdb_02_0004_b53539368593_1">GaussDB</strong>.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122327_li18677141231919"><span>On the <strong id="gaussdb_03_0045__b1562105641420">Instances </strong>page, select the DB instances to be exported and click <span><img id="gaussdb_03_0045__image13390101717163" src="en-us_image_0000001352379048.png"></span> in the upper right corner of the page. In the displayed dialog box, select the items to be exported and click <span class="uicontrol" id="gaussdb_03_0045__uicontrol195631556101419"><b>Export</b></span>.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122327_li325751518279"><span>After the export task is complete, a .csv file is generated locally.</span></li></ol> <div class="section" id="gaussdb_03_0045__en-us_topic_0171122327_section069716213575"><h4 class="sectiontitle">Exporting Information About Selected DB Instances</h4><ol id="gaussdb_03_0045__en-us_topic_0171122327_ol97541855161520"><li id="gaussdb_03_0045__li15910175216174"><span>Log in to the management console.</span></li><li id="gaussdb_03_0045__li129101152191719"><span>Click <span><img id="gaussdb_03_0045__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0045__li10910125231715"><span>Click <strong id="gaussdb_03_0045__gaussdb_02_0004_b1548312501622_1">Service List</strong>. Under <strong id="gaussdb_03_0045__gaussdb_02_0004_b1748325012210_1">Databases</strong>, click <strong id="gaussdb_03_0045__gaussdb_02_0004_b164831501625_1">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122327_li18677141231919"><span>On the <strong id="gaussdb_03_0045__b1562105641420">Instances </strong>page, select the DB instances to be exported and click <span><img id="gaussdb_03_0045__image13390101717163" src="en-us_image_0000001352379048.png"></span> in the upper right corner of the page. In the displayed dialog box, select the items to be exported and click <span class="uicontrol" id="gaussdb_03_0045__uicontrol195631556101419"><b>Export</b></span>.</span></li><li id="gaussdb_03_0045__en-us_topic_0171122327_li325751518279"><span>After the export task is complete, a .csv file is generated locally.</span></li></ol>
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</div> </div>
<div class="section" id="gaussdb_03_0047__section14137132581213"><h4 class="sectiontitle">Constraints</h4><ul id="gaussdb_03_0047__en-us_topic_0171122319_ul1098915407426"><li id="gaussdb_03_0047__en-us_topic_0171122319_li18506142104210">DB instances cannot be deleted when operations are being performed on them. They can be deleted only after the operations are completed.</li><li id="gaussdb_03_0047__en-us_topic_0171122319_li20785257288">If you delete a DB instance, its automated backups are also deleted and you are no longer charged for them. Manual backups are still retained and will incur additional costs.</li></ul> <div class="section" id="gaussdb_03_0047__section14137132581213"><h4 class="sectiontitle">Constraints</h4><ul id="gaussdb_03_0047__en-us_topic_0171122319_ul1098915407426"><li id="gaussdb_03_0047__en-us_topic_0171122319_li18506142104210">DB instances cannot be deleted when operations are being performed on them. They can be deleted only after the operations are completed.</li><li id="gaussdb_03_0047__en-us_topic_0171122319_li20785257288">If you delete a DB instance, its automated backups are also deleted and you are no longer charged for them. Manual backups are still retained and will incur additional costs.</li></ul>
</div> </div>
<div class="section" id="gaussdb_03_0047__en-us_topic_0171122319_section1011433142919"><h4 class="sectiontitle"><span class="keyword" id="gaussdb_03_0047__en-us_topic_0171122319_keyword1656972221017">Procedure</span></h4><ol id="gaussdb_03_0047__en-us_topic_0171122319_oa004d58aa8da4fdfbebf702690153c24"><li id="gaussdb_03_0047__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0047__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0047__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0047__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0047__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0047__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0047__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0047__li9438181012567"><span>On the <strong id="gaussdb_03_0047__en-us_topic_0171122319_b15540931759">Instances</strong> page, locate the DB instance to be deleted and click <strong id="gaussdb_03_0047__en-us_topic_0171122319_b12514174111518">More</strong> &gt; <strong id="gaussdb_03_0047__en-us_topic_0171122319_b1480745150">Delete</strong> in the <strong id="gaussdb_03_0047__en-us_topic_0171122319_b811917483513">Operation</strong> column.</span></li><li id="gaussdb_03_0047__en-us_topic_0171122319_l601f793a4dcf4f50ba3417ee838b53ed"><span>In the displayed dialog box, click <span class="parmname" id="gaussdb_03_0047__en-us_topic_0171122319_parmname1821530147203536"><b>Yes</b></span>. Refresh the <strong id="gaussdb_03_0047__en-us_topic_0171122319_b84235270691741">Instances </strong>page later to check that the deletion is successful.</span></li></ol> <div class="section" id="gaussdb_03_0047__en-us_topic_0171122319_section1011433142919"><h4 class="sectiontitle"><span class="keyword" id="gaussdb_03_0047__en-us_topic_0171122319_keyword1656972221017">Procedure</span></h4><ol id="gaussdb_03_0047__en-us_topic_0171122319_oa004d58aa8da4fdfbebf702690153c24"><li id="gaussdb_03_0047__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0047__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0047__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0047__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0047__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0047__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0047__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0047__li9438181012567"><span>On the <strong id="gaussdb_03_0047__en-us_topic_0171122319_b15540931759">Instances</strong> page, locate the DB instance to be deleted and click <strong id="gaussdb_03_0047__en-us_topic_0171122319_b12514174111518">More</strong> &gt; <strong id="gaussdb_03_0047__en-us_topic_0171122319_b1480745150">Delete</strong> in the <strong id="gaussdb_03_0047__en-us_topic_0171122319_b811917483513">Operation</strong> column.</span></li><li id="gaussdb_03_0047__en-us_topic_0171122319_l601f793a4dcf4f50ba3417ee838b53ed"><span>In the displayed dialog box, click <span class="parmname" id="gaussdb_03_0047__en-us_topic_0171122319_parmname1821530147203536"><b>Yes</b></span>. Refresh the <strong id="gaussdb_03_0047__en-us_topic_0171122319_b84235270691741">Instances </strong>page later to check that the deletion is successful.</span></li></ol>
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<ul id="gaussdb_03_0051__en-us_topic_0171122716_ul1744164793746"><li id="gaussdb_03_0051__en-us_topic_0171122716_li2843959693746">The database port is being changed.</li><li id="gaussdb_03_0051__en-us_topic_0171122716_li2224264093746">The instance status is <strong id="gaussdb_03_0051__b1972438685">Creating</strong>, <strong id="gaussdb_03_0051__b397213816810">Restoring</strong>, <strong id="gaussdb_03_0051__b297223812817">Rebooting</strong>, <strong id="gaussdb_03_0051__b209721238185">Changing port</strong>, <strong id="gaussdb_03_0051__b39735381783">Changing instance class</strong>, <strong id="gaussdb_03_0051__b33094396223">Promoting to primary</strong>, or <strong id="gaussdb_03_0051__b187261740162219">Abnormal</strong>.</li></ul> <ul id="gaussdb_03_0051__en-us_topic_0171122716_ul1744164793746"><li id="gaussdb_03_0051__en-us_topic_0171122716_li2843959693746">The database port is being changed.</li><li id="gaussdb_03_0051__en-us_topic_0171122716_li2224264093746">The instance status is <strong id="gaussdb_03_0051__b1972438685">Creating</strong>, <strong id="gaussdb_03_0051__b397213816810">Restoring</strong>, <strong id="gaussdb_03_0051__b297223812817">Rebooting</strong>, <strong id="gaussdb_03_0051__b209721238185">Changing port</strong>, <strong id="gaussdb_03_0051__b39735381783">Changing instance class</strong>, <strong id="gaussdb_03_0051__b33094396223">Promoting to primary</strong>, or <strong id="gaussdb_03_0051__b187261740162219">Abnormal</strong>.</li></ul>
<div class="section" id="gaussdb_03_0051__en-us_topic_0171122716_section5252821142215"><h4 class="sectiontitle">Precautions</h4><ul id="gaussdb_03_0051__en-us_topic_0171122716_ul1082143010223"><li id="gaussdb_03_0051__en-us_topic_0171122716_li68273032214">If you change the administrator password of a DB instance, the passwords of the read replicas associated with the DB instance are also changed accordingly.</li><li id="gaussdb_03_0051__en-us_topic_0171122716_li48223011224">The length of time it takes for the new password to take effect depends on the amount of service data currently being processed by the primary node.</li><li id="gaussdb_03_0051__en-us_topic_0171122716_li168216302225">To prevent brute force cracking and ensure system security, change your password periodically, such as every three or six months.</li></ul> <div class="section" id="gaussdb_03_0051__en-us_topic_0171122716_section5252821142215"><h4 class="sectiontitle">Precautions</h4><ul id="gaussdb_03_0051__en-us_topic_0171122716_ul1082143010223"><li id="gaussdb_03_0051__en-us_topic_0171122716_li68273032214">If you change the administrator password of a DB instance, the passwords of the read replicas associated with the DB instance are also changed accordingly.</li><li id="gaussdb_03_0051__en-us_topic_0171122716_li48223011224">The length of time it takes for the new password to take effect depends on the amount of service data currently being processed by the primary node.</li><li id="gaussdb_03_0051__en-us_topic_0171122716_li168216302225">To prevent brute force cracking and ensure system security, change your password periodically, such as every three or six months.</li></ul>
</div> </div>
<div class="section" id="gaussdb_03_0051__en-us_topic_0171122716_section59807924105129"><h4 class="sectiontitle">Method 1</h4><ol id="gaussdb_03_0051__en-us_topic_0171122716_ol12603704105129"><li id="gaussdb_03_0051__li11111185020914"><span>Log in to the management console.</span></li><li id="gaussdb_03_0051__li1511135012918"><span>Click <span><img id="gaussdb_03_0051__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0051__li17111250492"><span>Click <strong id="gaussdb_03_0051__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0051__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0051__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0051__en-us_topic_0171122716_li46324476105129"><span>On the <span class="parmname" id="gaussdb_03_0051__en-us_topic_0171122716_parmname7696479058465"><b>Instances</b></span> page, locate the target DB instance and choose <span class="menucascade" id="gaussdb_03_0051__en-us_topic_0171122716_menucascade42374616584621"><b><span class="uicontrol" id="gaussdb_03_0051__uicontrol44568043584621">More</span></b> &gt; <b><span class="uicontrol" id="gaussdb_03_0051__uicontrol40620853084621">Reset Password</span></b></span> in the <strong id="gaussdb_03_0051__en-us_topic_0171122716_b8423527069439">Operation</strong> column.</span></li><li id="gaussdb_03_0051__en-us_topic_0171122716_li14267104105129"><span>Enter a new password and confirm the password.</span><p><div class="notice" id="gaussdb_03_0051__en-us_topic_0171122716_note529322592414"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0051__en-us_topic_0171122716_p72930251247">Keep this password secure. The system cannot retrieve it.</p> <div class="section" id="gaussdb_03_0051__en-us_topic_0171122716_section59807924105129"><h4 class="sectiontitle">Method 1</h4><ol id="gaussdb_03_0051__en-us_topic_0171122716_ol12603704105129"><li id="gaussdb_03_0051__li11111185020914"><span>Log in to the management console.</span></li><li id="gaussdb_03_0051__li1511135012918"><span>Click <span><img id="gaussdb_03_0051__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0051__li17111250492"><span>Click <strong id="gaussdb_03_0051__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0051__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0051__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0051__en-us_topic_0171122716_li46324476105129"><span>On the <span class="parmname" id="gaussdb_03_0051__en-us_topic_0171122716_parmname7696479058465"><b>Instances</b></span> page, locate the target DB instance and choose <span class="menucascade" id="gaussdb_03_0051__en-us_topic_0171122716_menucascade42374616584621"><b><span class="uicontrol" id="gaussdb_03_0051__uicontrol44568043584621">More</span></b> &gt; <b><span class="uicontrol" id="gaussdb_03_0051__uicontrol40620853084621">Reset Password</span></b></span> in the <strong id="gaussdb_03_0051__en-us_topic_0171122716_b8423527069439">Operation</strong> column.</span></li><li id="gaussdb_03_0051__en-us_topic_0171122716_li14267104105129"><span>Enter a new password and confirm the password.</span><p><div class="notice" id="gaussdb_03_0051__en-us_topic_0171122716_note529322592414"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0051__en-us_topic_0171122716_p72930251247">Keep this password secure. The system cannot retrieve it.</p>
</div></div> </div></div>
<p id="gaussdb_03_0051__p156517561177">The new password must consist of 8 to 32 characters and contain at least three of the following: uppercase letters, lowercase letters, digits, and special characters (~!@#%^*-_=+?). Enter a strong password and periodically change it to improve security, preventing security risks such as brute force cracking.</p> <p id="gaussdb_03_0051__p156517561177">The new password must consist of 8 to 32 characters and contain at least three of the following: uppercase letters, lowercase letters, digits, and special characters (~!@#%^*-_=+?). Enter a strong password and periodically change it to improve security, preventing security risks such as brute force cracking.</p>
<ul id="gaussdb_03_0051__en-us_topic_0171122716_ul564019271245"><li id="gaussdb_03_0051__en-us_topic_0171122716_li4640192716419">To submit the new password, click <strong id="gaussdb_03_0051__en-us_topic_0171122716_b84235270695330_3">OK</strong>.</li><li id="gaussdb_03_0051__en-us_topic_0171122716_li196401127643">To cancel the reset, click <strong id="gaussdb_03_0051__en-us_topic_0171122716_b84235270620484_1">Cancel</strong>.</li></ul> <ul id="gaussdb_03_0051__en-us_topic_0171122716_ul564019271245"><li id="gaussdb_03_0051__en-us_topic_0171122716_li4640192716419">To submit the new password, click <strong id="gaussdb_03_0051__en-us_topic_0171122716_b84235270695330_3">OK</strong>.</li><li id="gaussdb_03_0051__en-us_topic_0171122716_li196401127643">To cancel the reset, click <strong id="gaussdb_03_0051__en-us_topic_0171122716_b84235270620484_1">Cancel</strong>.</li></ul>
</p></li></ol> </p></li></ol>
</div> </div>
<div class="section" id="gaussdb_03_0051__en-us_topic_0171122716_section4206283114638"><h4 class="sectiontitle">Method 2</h4><ol id="gaussdb_03_0051__en-us_topic_0171122716_ol796760111472"><li id="gaussdb_03_0051__li173781619194310"><span>Log in to the management console.</span></li><li id="gaussdb_03_0051__li11378121915437"><span>Click <span><img id="gaussdb_03_0051__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0051__li03781619114316"><span>Click <strong id="gaussdb_03_0051__gaussdb_02_0004_b4353193615913_1">Service List</strong>. Under <strong id="gaussdb_03_0051__gaussdb_02_0004_b163533362595_1">Database</strong>, click <strong id="gaussdb_03_0051__gaussdb_02_0004_b53539368593_1">GaussDB</strong>.</span></li><li id="gaussdb_03_0051__en-us_topic_0171122716_li61161897172844"><span>On the <strong id="gaussdb_03_0051__en-us_topic_0171122716_b84235270615219">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_03_0051__b148841556162511">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_03_0051__en-us_topic_0171122716_li36398892172958"><span>In the <strong id="gaussdb_03_0051__en-us_topic_0171122716_b836692819435">DB Instance Information</strong> area, click <strong id="gaussdb_03_0051__en-us_topic_0171122716_b438316281431">Reset Password</strong> in the <span class="uicontrol" id="gaussdb_03_0051__en-us_topic_0171122716_uicontrol12384628124315"><b>Administrator</b></span> field. In the displayed dialog box, enter a new password and confirm the password.</span><p><div class="notice" id="gaussdb_03_0051__en-us_topic_0171122716_note5427133210139"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0051__en-us_topic_0178839218_en-us_topic_0171122716_p72930251247">Keep this password secure. The system cannot retrieve it.</p> <div class="section" id="gaussdb_03_0051__en-us_topic_0171122716_section4206283114638"><h4 class="sectiontitle">Method 2</h4><ol id="gaussdb_03_0051__en-us_topic_0171122716_ol796760111472"><li id="gaussdb_03_0051__li173781619194310"><span>Log in to the management console.</span></li><li id="gaussdb_03_0051__li11378121915437"><span>Click <span><img id="gaussdb_03_0051__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0051__li03781619114316"><span>Click <strong id="gaussdb_03_0051__gaussdb_02_0004_b1548312501622_1">Service List</strong>. Under <strong id="gaussdb_03_0051__gaussdb_02_0004_b1748325012210_1">Databases</strong>, click <strong id="gaussdb_03_0051__gaussdb_02_0004_b164831501625_1">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0051__en-us_topic_0171122716_li61161897172844"><span>On the <strong id="gaussdb_03_0051__en-us_topic_0171122716_b84235270615219">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_03_0051__b148841556162511">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_03_0051__en-us_topic_0171122716_li36398892172958"><span>In the <strong id="gaussdb_03_0051__en-us_topic_0171122716_b836692819435">DB Instance Information</strong> area, click <strong id="gaussdb_03_0051__en-us_topic_0171122716_b438316281431">Reset Password</strong> in the <span class="uicontrol" id="gaussdb_03_0051__en-us_topic_0171122716_uicontrol12384628124315"><b>Administrator</b></span> field. In the displayed dialog box, enter a new password and confirm the password.</span><p><div class="notice" id="gaussdb_03_0051__en-us_topic_0171122716_note5427133210139"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0051__en-us_topic_0178839218_en-us_topic_0171122716_p72930251247">Keep this password secure. The system cannot retrieve it.</p>
</div></div> </div></div>
<div class="p" id="gaussdb_03_0051__p195599214122">The new password must consist of 8 to 32 characters and contain at least three of the following: uppercase letters, lowercase letters, digits, and special characters (~!@#%^*-_=+?). Enter a strong password and periodically change it to improve security, preventing security risks such as brute force cracking.<ul id="gaussdb_03_0051__en-us_topic_0178839218_en-us_topic_0171122716_ul564019271245"><li id="gaussdb_03_0051__en-us_topic_0178839218_en-us_topic_0171122716_li4640192716419">To submit the new password, click <strong id="gaussdb_03_0051__b117855002">OK</strong>.</li><li id="gaussdb_03_0051__en-us_topic_0178839218_en-us_topic_0171122716_li196401127643">To cancel the reset, click <strong id="gaussdb_03_0051__b1737428028">Cancel</strong>.</li></ul> <div class="p" id="gaussdb_03_0051__p195599214122">The new password must consist of 8 to 32 characters and contain at least three of the following: uppercase letters, lowercase letters, digits, and special characters (~!@#%^*-_=+?). Enter a strong password and periodically change it to improve security, preventing security risks such as brute force cracking.<ul id="gaussdb_03_0051__en-us_topic_0178839218_en-us_topic_0171122716_ul564019271245"><li id="gaussdb_03_0051__en-us_topic_0178839218_en-us_topic_0171122716_li4640192716419">To submit the new password, click <strong id="gaussdb_03_0051__b117855002">OK</strong>.</li><li id="gaussdb_03_0051__en-us_topic_0178839218_en-us_topic_0171122716_li196401127643">To cancel the reset, click <strong id="gaussdb_03_0051__b1737428028">Cancel</strong>.</li></ul>
</div> </div>

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docs/gaussdb_mysql/umn/gaussdb_03_0058.html
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@ -4,10 +4,10 @@
<div id="body8662426"><div class="section" id="gaussdb_03_0058__en-us_topic_0171122845_section387888031450"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0058__en-us_topic_0171122845_p4192281217036"><span id="gaussdb_03_0058__text105701313103616">GaussDB(for MySQL)</span> allows you to <span class="keyword" id="gaussdb_03_0058__keyword15962012418">create manual backups</span> for available primary nodes. You can restore data from backups to ensure data reliability.</p> <div id="body8662426"><div class="section" id="gaussdb_03_0058__en-us_topic_0171122845_section387888031450"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0058__en-us_topic_0171122845_p4192281217036"><span id="gaussdb_03_0058__text105701313103616">GaussDB(for MySQL)</span> allows you to <span class="keyword" id="gaussdb_03_0058__keyword15962012418">create manual backups</span> for available primary nodes. You can restore data from backups to ensure data reliability.</p>
<ul id="gaussdb_03_0058__ul48453242410"><li id="gaussdb_03_0058__li38410328244">When you delete a DB instance, its automated backups are also deleted but its manual backups are retained.</li></ul> <ul id="gaussdb_03_0058__ul48453242410"><li id="gaussdb_03_0058__li38410328244">When you delete a DB instance, its automated backups are also deleted but its manual backups are retained.</li></ul>
</div> </div>
<div class="section" id="gaussdb_03_0058__en-us_topic_0171122845_section3535102285710"><h4 class="sectiontitle">Method 1</h4><ol id="gaussdb_03_0058__en-us_topic_0171122845_o2173078bb42c41a0b711d64c49e2565d"><li id="gaussdb_03_0058__li1370755351020"><span>Log in to the management console.</span></li><li id="gaussdb_03_0058__li15708115351019"><span>Click <span><img id="gaussdb_03_0058__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0058__li27086537104"><span>Click <strong id="gaussdb_03_0058__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0058__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0058__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122845_l6b462da2019b41cd87b384de44f2bcc9"><span>On the <span class="uicontrol" id="gaussdb_03_0058__en-us_topic_0171122845_uicontrol382850423191944"><b>Instances</b></span> page, locate the target DB instance and choose <span class="menucascade" id="gaussdb_03_0058__en-us_topic_0171122845_menucascade158784999010023"><b><span class="uicontrol" id="gaussdb_03_0058__uicontrol157226285710023">More</span></b> &gt; <b><span class="uicontrol" id="gaussdb_03_0058__uicontrol18071062810023">Create Backup</span></b></span> in the <strong id="gaussdb_03_0058__en-us_topic_0171122845_b84235270610314">Operation</strong> column.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122845_l6d35af1958874f2bb67501ccf04f2079"><span>In the displayed dialog box, enter a backup name and description. Then, click <strong id="gaussdb_03_0058__en-us_topic_0171122845_b1990655243114223">OK</strong>. If you want to cancel the backup creation task, click <strong id="gaussdb_03_0058__en-us_topic_0171122845_b118111817135615">Cancel</strong>.</span><p><ul id="gaussdb_03_0058__en-us_topic_0171122845_ul18955183374417"><li id="gaussdb_03_0058__en-us_topic_0171122845_li18955153311448">The backup name must consist of 4 to 64 characters and start with a letter. It can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).</li><li id="gaussdb_03_0058__en-us_topic_0171122845_li69551933104417">The description must consist of a maximum of 256 characters and cannot contain the carriage return character or the following special characters: !&lt;"='&gt;&amp;</li><li id="gaussdb_03_0058__en-us_topic_0171122845_li295518336442">The time required for creating a manual backup depends on the data volume of the DB instance.</li></ul> <div class="section" id="gaussdb_03_0058__en-us_topic_0171122845_section3535102285710"><h4 class="sectiontitle">Method 1</h4><ol id="gaussdb_03_0058__en-us_topic_0171122845_o2173078bb42c41a0b711d64c49e2565d"><li id="gaussdb_03_0058__li1370755351020"><span>Log in to the management console.</span></li><li id="gaussdb_03_0058__li15708115351019"><span>Click <span><img id="gaussdb_03_0058__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0058__li27086537104"><span>Click <strong id="gaussdb_03_0058__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0058__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0058__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122845_l6b462da2019b41cd87b384de44f2bcc9"><span>On the <span class="uicontrol" id="gaussdb_03_0058__en-us_topic_0171122845_uicontrol382850423191944"><b>Instances</b></span> page, locate the target DB instance and choose <span class="menucascade" id="gaussdb_03_0058__en-us_topic_0171122845_menucascade158784999010023"><b><span class="uicontrol" id="gaussdb_03_0058__uicontrol157226285710023">More</span></b> &gt; <b><span class="uicontrol" id="gaussdb_03_0058__uicontrol18071062810023">Create Backup</span></b></span> in the <strong id="gaussdb_03_0058__en-us_topic_0171122845_b84235270610314">Operation</strong> column.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122845_l6d35af1958874f2bb67501ccf04f2079"><span>In the displayed dialog box, enter a backup name and description. Then, click <strong id="gaussdb_03_0058__en-us_topic_0171122845_b1990655243114223">OK</strong>. If you want to cancel the backup creation task, click <strong id="gaussdb_03_0058__en-us_topic_0171122845_b118111817135615">Cancel</strong>.</span><p><ul id="gaussdb_03_0058__en-us_topic_0171122845_ul18955183374417"><li id="gaussdb_03_0058__en-us_topic_0171122845_li18955153311448">The backup name must consist of 4 to 64 characters and start with a letter. It can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).</li><li id="gaussdb_03_0058__en-us_topic_0171122845_li69551933104417">The description must consist of a maximum of 256 characters and cannot contain the carriage return character or the following special characters: !&lt;"='&gt;&amp;</li><li id="gaussdb_03_0058__en-us_topic_0171122845_li295518336442">The time required for creating a manual backup depends on the data volume of the DB instance.</li></ul>
</p></li><li id="gaussdb_03_0058__en-us_topic_0171122845_li9129133519114"><span>After a manual backup has been created, you can view and manage it on the <span class="uicontrol" id="gaussdb_03_0058__en-us_topic_0171122845_uicontrol27595146171816"><b>Backups</b></span> page.</span></li></ol> </p></li><li id="gaussdb_03_0058__en-us_topic_0171122845_li9129133519114"><span>After a manual backup has been created, you can view and manage it on the <span class="uicontrol" id="gaussdb_03_0058__en-us_topic_0171122845_uicontrol27595146171816"><b>Backups</b></span> page.</span></li></ol>
</div> </div>
<div class="section" id="gaussdb_03_0058__en-us_topic_0171122845_section56713052173915"><h4 class="sectiontitle">Method 2</h4><ol id="gaussdb_03_0058__en-us_topic_0171122845_ol30354504173915"><li id="gaussdb_03_0058__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0058__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0058__gaussdb_02_0004_b4353193615913_1">Service List</strong>. Under <strong id="gaussdb_03_0058__gaussdb_02_0004_b163533362595_1">Database</strong>, click <strong id="gaussdb_03_0058__gaussdb_02_0004_b53539368593_1">GaussDB</strong>.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122845_li4755084173915"><span>On the <strong id="gaussdb_03_0058__b118550862015">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122845_li66582655173915"><span>On the <strong id="gaussdb_03_0058__en-us_topic_0171122845_b842352706115220">Backups</strong> page, click <strong id="gaussdb_03_0058__en-us_topic_0171122845_b842352706115231">Create Backup</strong>. In the displayed dialog box, enter a backup name and a description, and click <strong id="gaussdb_03_0058__en-us_topic_0171122845_b1454363206114213">OK</strong>. If you want to cancel the backup creation task, click <strong id="gaussdb_03_0058__b117521952121416">Cancel</strong>.</span><p><ul id="gaussdb_03_0058__en-us_topic_0171122845_ul24021752174714"><li id="gaussdb_03_0058__gaussdb_03_0058_en-us_topic_0171122845_li18955153311448">The backup name must consist of 4 to 64 characters and start with a letter. It can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).</li><li id="gaussdb_03_0058__gaussdb_03_0058_en-us_topic_0171122845_li69551933104417">The description must consist of a maximum of 256 characters and cannot contain the carriage return character or the following special characters: !&lt;"='&gt;&amp;</li><li id="gaussdb_03_0058__gaussdb_03_0058_en-us_topic_0171122845_li295518336442">The time required for creating a manual backup depends on the data volume of the DB instance.</li></ul> <div class="section" id="gaussdb_03_0058__en-us_topic_0171122845_section56713052173915"><h4 class="sectiontitle">Method 2</h4><ol id="gaussdb_03_0058__en-us_topic_0171122845_ol30354504173915"><li id="gaussdb_03_0058__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0058__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0058__gaussdb_02_0004_b1548312501622_1">Service List</strong>. Under <strong id="gaussdb_03_0058__gaussdb_02_0004_b1748325012210_1">Databases</strong>, click <strong id="gaussdb_03_0058__gaussdb_02_0004_b164831501625_1">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122845_li4755084173915"><span>On the <strong id="gaussdb_03_0058__b118550862015">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_03_0058__en-us_topic_0171122845_li66582655173915"><span>On the <strong id="gaussdb_03_0058__en-us_topic_0171122845_b842352706115220">Backups</strong> page, click <strong id="gaussdb_03_0058__en-us_topic_0171122845_b842352706115231">Create Backup</strong>. In the displayed dialog box, enter a backup name and a description, and click <strong id="gaussdb_03_0058__en-us_topic_0171122845_b1454363206114213">OK</strong>. If you want to cancel the backup creation task, click <strong id="gaussdb_03_0058__b117521952121416">Cancel</strong>.</span><p><ul id="gaussdb_03_0058__en-us_topic_0171122845_ul24021752174714"><li id="gaussdb_03_0058__gaussdb_03_0058_en-us_topic_0171122845_li18955153311448">The backup name must consist of 4 to 64 characters and start with a letter. It can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).</li><li id="gaussdb_03_0058__gaussdb_03_0058_en-us_topic_0171122845_li69551933104417">The description must consist of a maximum of 256 characters and cannot contain the carriage return character or the following special characters: !&lt;"='&gt;&amp;</li><li id="gaussdb_03_0058__gaussdb_03_0058_en-us_topic_0171122845_li295518336442">The time required for creating a manual backup depends on the data volume of the DB instance.</li></ul>
</p></li><li id="gaussdb_03_0058__en-us_topic_0171122845_li17482143281917"><span>After a manual backup has been created, you can view and manage it on the <span class="uicontrol" id="gaussdb_03_0058__uicontrol1887584440"><b>Backups</b></span> page.</span></li></ol> </p></li><li id="gaussdb_03_0058__en-us_topic_0171122845_li17482143281917"><span>After a manual backup has been created, you can view and manage it on the <span class="uicontrol" id="gaussdb_03_0058__uicontrol1887584440"><b>Backups</b></span> page.</span></li></ol>
</div> </div>
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<h1 class="topictitle1">Restoring Data from a Backup</h1> <h1 class="topictitle1">Restoring Data from a Backup</h1>
<div id="body8662426"><div class="section" id="gaussdb_03_0063__en-us_topic_0171122730_section468581517207"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0063__en-us_topic_0171122730_p21389033144317">You can use an automated or manual backup to restore data to the status when the backup was created. The restoration is at the DB instance level.</p> <div id="body8662426"><div class="section" id="gaussdb_03_0063__en-us_topic_0171122730_section468581517207"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0063__en-us_topic_0171122730_p21389033144317">You can use an automated or manual backup to restore data to the status when the backup was created. The restoration is at the DB instance level.</p>
</div> </div>
<div class="section" id="gaussdb_03_0063__en-us_topic_0171122730_section56693485162629"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0063__en-us_topic_0171122730_o294a3f1667454757ae89c4cc2cb2f68c"><li id="gaussdb_03_0063__li11228025111113"><span>Log in to the management console.</span></li><li id="gaussdb_03_0063__li12228142581118"><span>Click <span><img id="gaussdb_03_0063__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0063__li1622802517117"><span>Click <strong id="gaussdb_03_0063__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0063__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0063__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0063__en-us_topic_0171122730_lb56703479c4d499aae19c0f66c05f580"><span>On the <strong id="gaussdb_03_0063__en-us_topic_0171122730_b842352706111028">Backups</strong> page, select the backup to be restored and click <strong id="gaussdb_03_0063__en-us_topic_0171122730_b84235270611119">Restore</strong> in the <strong id="gaussdb_03_0063__en-us_topic_0171122730_b842352706111114">Operation</strong> column.</span></li><li id="gaussdb_03_0063__en-us_topic_0171122730_l02b85d494b33478aa0354867be338dda"><span>Click <strong id="gaussdb_03_0063__b139608415373">OK</strong>. Currently, you can only restore data to a new DB instance.</span><p><p id="gaussdb_03_0063__p11243512165319">The <strong id="gaussdb_03_0063__en-us_topic_0171122730_b842352706151839">Create New Instance</strong> page is displayed.</p> <div class="section" id="gaussdb_03_0063__en-us_topic_0171122730_section56693485162629"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0063__en-us_topic_0171122730_o294a3f1667454757ae89c4cc2cb2f68c"><li id="gaussdb_03_0063__li11228025111113"><span>Log in to the management console.</span></li><li id="gaussdb_03_0063__li12228142581118"><span>Click <span><img id="gaussdb_03_0063__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0063__li1622802517117"><span>Click <strong id="gaussdb_03_0063__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0063__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0063__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0063__en-us_topic_0171122730_lb56703479c4d499aae19c0f66c05f580"><span>On the <strong id="gaussdb_03_0063__en-us_topic_0171122730_b842352706111028">Backups</strong> page, select the backup to be restored and click <strong id="gaussdb_03_0063__en-us_topic_0171122730_b84235270611119">Restore</strong> in the <strong id="gaussdb_03_0063__en-us_topic_0171122730_b842352706111114">Operation</strong> column.</span></li><li id="gaussdb_03_0063__en-us_topic_0171122730_l02b85d494b33478aa0354867be338dda"><span>Click <strong id="gaussdb_03_0063__b139608415373">OK</strong>. Currently, you can only restore data to a new DB instance.</span><p><p id="gaussdb_03_0063__p11243512165319">The <strong id="gaussdb_03_0063__en-us_topic_0171122730_b842352706151839">Create New Instance</strong> page is displayed.</p>
<ul id="gaussdb_03_0063__ul13244111225319"><li id="gaussdb_03_0063__li12243171255313">The region, DB engine and version of the new DB instance are the same as those of the original DB instance and cannot be changed.</li><li id="gaussdb_03_0063__li15140195713428">The database port is <strong id="gaussdb_03_0063__b824350163518">3306</strong> by default.</li><li id="gaussdb_03_0063__li32449122537">Other settings are the same as those of the original DB instance by default and can be modified. For details, see <a href="gaussdb_02_0004.html">Step 1: Create a DB Instance</a>.</li></ul> <ul id="gaussdb_03_0063__ul13244111225319"><li id="gaussdb_03_0063__li12243171255313">The region, DB engine and version of the new DB instance are the same as those of the original DB instance and cannot be changed.</li><li id="gaussdb_03_0063__li15140195713428">The database port is <strong id="gaussdb_03_0063__b824350163518">3306</strong> by default.</li><li id="gaussdb_03_0063__li32449122537">Other settings are the same as those of the original DB instance by default and can be modified. For details, see <a href="gaussdb_02_0004.html">Step 1: Create a DB Instance</a>.</li></ul>
</p></li><li id="gaussdb_03_0063__en-us_topic_0171122730_li47261333165018"><span>View the restoration results.</span><p><p id="gaussdb_03_0063__p5201134913458">A new DB instance is created using the backup data. The instance status changes from <span class="uicontrol" id="gaussdb_03_0063__en-us_topic_0171122730_uicontrol1693564573152917"><b>Creating</b></span> to <span class="uicontrol" id="gaussdb_03_0063__en-us_topic_0171122730_uicontrol1763825462152917"><b>Available</b></span>.</p> </p></li><li id="gaussdb_03_0063__en-us_topic_0171122730_li47261333165018"><span>View the restoration results.</span><p><p id="gaussdb_03_0063__p5201134913458">A new DB instance is created using the backup data. The instance status changes from <span class="uicontrol" id="gaussdb_03_0063__en-us_topic_0171122730_uicontrol1693564573152917"><b>Creating</b></span> to <span class="uicontrol" id="gaussdb_03_0063__en-us_topic_0171122730_uicontrol1763825462152917"><b>Available</b></span>.</p>
<p id="gaussdb_03_0063__en-us_topic_0171122730_p613729164812">The new DB instance is independent from the original one. If you want to offload read pressure on the primary node, create one or more read replicas for the new DB instance.</p> <p id="gaussdb_03_0063__en-us_topic_0171122730_p613729164812">The new DB instance is independent from the original one. If you want to offload read pressure on the primary node, create one or more read replicas for the new DB instance.</p>

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<div class="notice" id="gaussdb_03_0068__en-us_topic_0171122866_note66377071111037"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0068__en-us_topic_0171122866_p10249075175439">Deleted manual backups cannot be recovered. Exercise caution when performing this operation.</p> <div class="notice" id="gaussdb_03_0068__en-us_topic_0171122866_note66377071111037"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0068__en-us_topic_0171122866_p10249075175439">Deleted manual backups cannot be recovered. Exercise caution when performing this operation.</p>
</div></div> </div></div>
<div class="section" id="gaussdb_03_0068__en-us_topic_0171122866_s84d6bef8cb664c9480d4c8fbec48744f"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0068__en-us_topic_0171122866_ode438610b1184490b63a9b763614d733"><li id="gaussdb_03_0068__li114342521119"><span>Log in to the management console.</span></li><li id="gaussdb_03_0068__li243425261113"><span>Click <span><img id="gaussdb_03_0068__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0068__li0435652111111"><span>Click <strong id="gaussdb_03_0068__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0068__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0068__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0068__en-us_topic_0171122866_li157018131014"><span>In the navigation pane on the left, choose <strong id="gaussdb_03_0068__en-us_topic_0171122866_b5344437192518">Backups</strong>. On the displayed page, locate the manual backup to be deleted and click <strong id="gaussdb_03_0068__en-us_topic_0171122866_b17344837152512">Delete</strong> in the <strong id="gaussdb_03_0068__en-us_topic_0171122866_b734563732513">Operation</strong> column.</span><p><p id="gaussdb_03_0068__en-us_topic_0171122866_p995916273016">The following backups cannot be deleted:</p> <div class="section" id="gaussdb_03_0068__en-us_topic_0171122866_s84d6bef8cb664c9480d4c8fbec48744f"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0068__en-us_topic_0171122866_ode438610b1184490b63a9b763614d733"><li id="gaussdb_03_0068__li114342521119"><span>Log in to the management console.</span></li><li id="gaussdb_03_0068__li243425261113"><span>Click <span><img id="gaussdb_03_0068__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0068__li0435652111111"><span>Click <strong id="gaussdb_03_0068__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0068__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0068__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0068__en-us_topic_0171122866_li157018131014"><span>In the navigation pane on the left, choose <strong id="gaussdb_03_0068__en-us_topic_0171122866_b5344437192518">Backups</strong>. On the displayed page, locate the manual backup to be deleted and click <strong id="gaussdb_03_0068__en-us_topic_0171122866_b17344837152512">Delete</strong> in the <strong id="gaussdb_03_0068__en-us_topic_0171122866_b734563732513">Operation</strong> column.</span><p><p id="gaussdb_03_0068__en-us_topic_0171122866_p995916273016">The following backups cannot be deleted:</p>
<ul id="gaussdb_03_0068__en-us_topic_0171122866_ul10959152714016"><li id="gaussdb_03_0068__en-us_topic_0171122866_li1795916271809">Automated backups</li><li id="gaussdb_03_0068__en-us_topic_0171122866_li79593272004">Backups that are being restored</li></ul> <ul id="gaussdb_03_0068__en-us_topic_0171122866_ul10959152714016"><li id="gaussdb_03_0068__en-us_topic_0171122866_li1795916271809">Automated backups</li><li id="gaussdb_03_0068__en-us_topic_0171122866_li79593272004">Backups that are being restored</li></ul>
</p></li><li id="gaussdb_03_0068__en-us_topic_0171122866_en-us_topic_0023328311_li54551811344"><span>Click <span class="uicontrol" id="gaussdb_03_0068__en-us_topic_0171122866_uicontrol2309427771211"><b>Yes</b></span>.</span></li></ol> </p></li><li id="gaussdb_03_0068__en-us_topic_0171122866_en-us_topic_0023328311_li54551811344"><span>Click <span class="uicontrol" id="gaussdb_03_0068__en-us_topic_0171122866_uicontrol2309427771211"><b>Yes</b></span>.</span></li></ol>
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<a name="gaussdb_03_0069"></a><a name="gaussdb_03_0069"></a> <a name="gaussdb_03_0069"></a><a name="gaussdb_03_0069"></a>
<h1 class="topictitle1">Backup Space and Billing</h1> <h1 class="topictitle1">Backup Space and Billing</h1>
<div id="body0000001850648748"><div class="section" id="gaussdb_03_0069__section8556164183719"><h4 class="sectiontitle">Category</h4><ul id="gaussdb_03_0069__ul348833093812"><li id="gaussdb_03_0069__li248912303387">The full backup mode is used to back up all target data even if no data is updated since the last backup.</li><li id="gaussdb_03_0069__li7982341173915">Incremental backup: The system automatically backs up data that has changed since the last automated backup or incremental backup in binlogs every 5 minutes. The binlogs can be used to restore data to a specified point in time.</li><li id="gaussdb_03_0069__li248923083810">Differential backup: The system backs up data that has changed since the most recent full backup or differential backup in to physical files. Physical files cannot be used for log replay.</li><li id="gaussdb_03_0069__li1448910308385">Billable space: Backup space that you are billed for.</li><li id="gaussdb_03_0069__li748973003818">Logical space: Space occupied by full backups.</li><li id="gaussdb_03_0069__li4661143610712">Physical space: The amount of data that is backed up to OBS.<div class="note" id="gaussdb_03_0069__note1433034510713"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_03_0069__p833174517715">After you create a DB instance, the logical space is the same as the physical space. When a backup starts in a backup chain, the physical space stores the data of the first full backup and subsequent differential backups.</p> <div id="body0000001850648748"><div class="section" id="gaussdb_03_0069__section8556164183719"><h4 class="sectiontitle">Category</h4><ul id="gaussdb_03_0069__ul348833093812"><li id="gaussdb_03_0069__li248912303387">Full backup: All data is backed up even if no data is updated since the last backup.</li><li id="gaussdb_03_0069__li7982341173915">Incremental backup: The system automatically backs up data that has changed since the last automated backup or incremental backup in binlogs every 5 minutes. The binlogs can be used to restore data to a specified point in time.</li><li id="gaussdb_03_0069__li248923083810">Differential backup: The system backs up data that has changed since the most recent full backup or differential backup in to physical files. Physical files cannot be used for log replay.</li><li id="gaussdb_03_0069__li1448910308385">Billed space: backup space that you are billed for.</li><li id="gaussdb_03_0069__li748973003818">Logical space: space occupied by full backups.</li><li id="gaussdb_03_0069__li4661143610712">Physical space: the amount of data backed up to OBS.<div class="note" id="gaussdb_03_0069__note1433034510713"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_03_0069__p833174517715">After you create a DB instance, the logical space is the same as the physical space. When a backup starts in a backup chain, the physical space stores the data of the first full backup and subsequent differential backups.</p>
</div></div> </div></div>
</li></ul> </li></ul>
</div> </div>
<div class="section" id="gaussdb_03_0069__section09161839161312"><h4 class="sectiontitle">Backup Space Calculation Methods</h4><p id="gaussdb_03_0069__p131441549191319">There is a default backup chain (where there are seven backups). The first automated backup is a full backup, and subsequent automated backups are differential backups.</p> <div class="section" id="gaussdb_03_0069__section09161839161312"><h4 class="sectiontitle">Backup Space Calculation Methods</h4><p id="gaussdb_03_0069__p131441549191319">There is a default backup chain (where there are seven backups). The first automated backup is a full backup, and subsequent automated backups are differential backups.</p>
<p id="gaussdb_03_0069__p196916594303">In a backup chain, the backup space is released only after all full backups and differential backups are deleted.</p> <p id="gaussdb_03_0069__p196916594303">In a backup chain, the backup space is released only after all full backups and differential backups are deleted.</p>
<ul id="gaussdb_03_0069__ul21071044112513"><li id="gaussdb_03_0069__li1997562163112">Logical space: Total size of the logical space – Logical size of the expired backup file</li><li id="gaussdb_03_0069__li201071443252">Physical space: Size of the first full backup file + total size of subsequent differential backup files</li><li id="gaussdb_03_0069__li151077449251">Free space: There is free backup storage up to 100% of your provisioned database storage.</li></ul> <p id="gaussdb_03_0069__p1151416129164">The billed space is calculated as follows:</p>
<p id="gaussdb_03_0069__p1151416129164">Billing is calculated as follows:</p> <ul id="gaussdb_03_0069__ul334723162013"><li id="gaussdb_03_0069__li13348193172014">Logical space: Total size of the logical space – Logical size of the expired backup file</li><li id="gaussdb_03_0069__li634893110208">Physical space: Size of the first full backup file + Total size of subsequent differential backup files</li><li id="gaussdb_03_0069__li2034863142015">Free space: There is free backup storage up to 100% of storage space.</li></ul>
<p id="gaussdb_03_0069__p980982212218">The system deducts the free space from either the logical space or the physical space, whichever is smaller.</p> <p id="gaussdb_03_0069__p18488133174619">Billed space = Min (Logical space, Physical space) – Free space = Min (Logical space, Physical space) – Storage space</p>
</div> </div>
<div class="section" id="gaussdb_03_0069__section166381644108"><h4 class="sectiontitle">Example</h4><p id="gaussdb_03_0069__p9920133619545">A backup line contains seven backups by default. There are 11 backups shown in the following figure. The 1st backup to the 7th belong to one backup line and the 8th to the 11th belong to another.</p> <div class="section" id="gaussdb_03_0069__section166381644108"><h4 class="sectiontitle">Example</h4><p id="gaussdb_03_0069__p9920133619545">A backup chain contains seven backups by default. There are 11 backups shown in the following figure. The 1st backup to the 7th belong to one backup chain and the 8th to the 11th belong to the other backup chain.</p>
<div class="fignone" id="gaussdb_03_0069__fig6884164985414"><span class="figcap"><b>Figure 1 </b>Backup example</span><br><span><img id="gaussdb_03_0069__image1910533113402" src="en-us_image_0000001896928157.png"></span></div> <div class="fignone" id="gaussdb_03_0069__fig6884164985414"><span class="figcap"><b>Figure 1 </b>Backup example</span><br><span><img id="gaussdb_03_0069__image1910533113402" src="en-us_image_0000001896928157.png"></span></div>
<p id="gaussdb_03_0069__p1051826114118"></p> <p id="gaussdb_03_0069__p1051826114118"></p>
<p id="gaussdb_03_0069__p93611454154114">If there is 1,000 MB of backup space and the logical space is 1,000 MB each time, the physical space for the 1st backup is 1,000 MB. If the incremental data size is 100 MB each time, the physical space for the 2nd backup to 7th is 100 MB.</p> <p id="gaussdb_03_0069__p93611454154114">If there is 1,000 MB of backup space and the logical space is 1,000 MB each time, the physical space for the 1st backup is 1,000 MB. If the incremental data size is 100 MB each time, the physical space for the 2nd backup to 7th is 100 MB.</p>
<p id="gaussdb_03_0069__p328419500715">A backup line contains seven backups by default. The physical space for the 8th backup is 1,000 MB because it represents a new backup line.</p> <p id="gaussdb_03_0069__p328419500715">A backup chain contains seven backups by default. The physical space for the 8th backup is 1,000 MB because it represents a new backup chain.</p>
<p id="gaussdb_03_0069__p18503611526">Billed space includes the space of the two chains in the example.</p> <p id="gaussdb_03_0069__p18503611526">Billed space includes the space of the two chains in the example.</p>
<p id="gaussdb_03_0069__p1766095919446">Suppose that after the 11th backup was created, and the 1st, 2nd and 3rd backups expired and were automatically deleted. The size of each space is calculated as follows:</p> <p id="gaussdb_03_0069__p1766095919446">Suppose that after the 11th backup was created, and the 1st, 2nd and 3rd backups expired and were automatically deleted. The size of each space is calculated as follows:</p>
<ul id="gaussdb_03_0069__ul1616785575711"><li id="gaussdb_03_0069__li91511658115716">Total logical space size = Total logical space size – Logical size of the expired backup file (1,000 MB x 11 - 3,000 MB = 8,000 MB in this example).</li><li id="gaussdb_03_0069__li10443241030">Physical space: size of data backed up to OBS. In this example, physical space includes the sum of physical space on the two backup links: 1,000 MB + (100 MB x 6) +1,000 MB+ (100 MB X 3) =2,900 MB</li><li id="gaussdb_03_0069__li416745525719">Total billed space = Min (Total size of logical space, Total size of physical space) – free space, so the total billed space in this example = Min (8,000 MB, 2,900 MB) – 1,000 MB = 1,900 MB</li></ul> <ul id="gaussdb_03_0069__ul1616785575711"><li id="gaussdb_03_0069__li635985363913">Total size of the logical space for the 11th backup = 1,000 MB x 11 – 3,000 MB = 8,000 MB</li><li id="gaussdb_03_0069__li5726172265217">Physical space: the amount of data backed up to OBS, that is, the sum of the physical space on the two chains.<p id="gaussdb_03_0069__p1766472718528"><a name="gaussdb_03_0069__li5726172265217"></a><a name="li5726172265217"></a>Physical space = 1,000 MB + 100 MB x 6 + 1,000 MB + 100 MB x 3 = 2,900 MB</p>
</li><li id="gaussdb_03_0069__li1335975383914">Total billed space = Min (8,000 MB, 2,900 MB) – 1,000 MB = 1,900 MB</li></ul>
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<p id="gaussdb_03_0072__p195151517170">When you have already created a parameter template and want to include most of the custom parameters and values from that template in a new parameter template, you can replicate that parameter template following the instructions provided in <a href="gaussdb_08_0014.html">Replicating a Parameter Template</a>.</p> <p id="gaussdb_03_0072__p195151517170">When you have already created a parameter template and want to include most of the custom parameters and values from that template in a new parameter template, you can replicate that parameter template following the instructions provided in <a href="gaussdb_08_0014.html">Replicating a Parameter Template</a>.</p>
<p id="gaussdb_03_0072__p1495215191710">The following are the key points you should know when using parameters:</p> <p id="gaussdb_03_0072__p1495215191710">The following are the key points you should know when using parameters:</p>
<ul id="gaussdb_03_0072__ul795181501717"><li id="gaussdb_03_0072__li2463155814719">When you change a dynamic parameter value in a parameter template and save the change, the change takes effect immediately. When you change a static parameter value in a parameter template and save the change, the change will take effect only after you manually reboot the DB instances to which the parameter template applies.</li><li id="gaussdb_03_0072__li14956155171">Improper parameter settings may have unintended adverse effects, including degraded performance and system instability. Exercise caution when modifying database parameters and you need to back up data before modifying parameters in a parameter template. Before applying parameter template changes to a production DB instance, you should try out these changes on a test DB instance.</li></ul> <ul id="gaussdb_03_0072__ul795181501717"><li id="gaussdb_03_0072__li2463155814719">When you change a dynamic parameter value in a parameter template and save the change, the change takes effect immediately. When you change a static parameter value in a parameter template and save the change, the change will take effect only after you manually reboot the DB instances to which the parameter template applies.</li><li id="gaussdb_03_0072__li14956155171">Improper parameter settings may have unintended adverse effects, including degraded performance and system instability. Exercise caution when modifying database parameters and you need to back up data before modifying parameters in a parameter template. Before applying parameter template changes to a production DB instance, you should try out these changes on a test DB instance.</li></ul>
<div class="section" id="gaussdb_03_0072__s1d4b577d340b4a0baa353efbd0219c2d"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0072__oba817fec0e424e889d618c4a80c2b686"><li id="gaussdb_03_0072__li612172720122"><span>Log in to the management console.</span></li><li id="gaussdb_03_0072__li1712327181216"><span>Click <span><img id="gaussdb_03_0072__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0072__li712102751213"><span>Click <strong id="gaussdb_03_0072__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0072__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0072__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0072__ld614deee55ec43dd853e08591f57dc6b"><span>On the <span class="uicontrol" id="gaussdb_03_0072__uicontrol182311199020"><b>Parameter Templates</b></span> page, click <span class="uicontrol" id="gaussdb_03_0072__uicontrol1323220191605"><b>Create Parameter Template</b></span>.</span></li><li id="gaussdb_03_0072__lc179a8ec923940d69f8b255392d22480"><span>In the displayed dialog box, configure required information and click <strong id="gaussdb_03_0072__b19945185113019">OK</strong>.</span><p><ul id="gaussdb_03_0072__u44451e1258344d23af4083dd22d99beb"><li id="gaussdb_03_0072__l054d879e10224dda9a59b1c5b1777d73">Select a DB engine for the parameter template.</li><li id="gaussdb_03_0072__l5b0b55c0be574a30b2971df004f0dac7">The template name must consist of 1 to 64 characters. It can contain only uppercase letters, lowercase letters, digits, hyphens (-), underscores (_), and periods (.).</li><li id="gaussdb_03_0072__l17da2c371ddf4f77aa1f4e59f5153e39">The description consists of a maximum of 256 characters and cannot contain the carriage return character or the following special characters: &gt;!&lt;"&amp;'=</li></ul> <div class="section" id="gaussdb_03_0072__s1d4b577d340b4a0baa353efbd0219c2d"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0072__oba817fec0e424e889d618c4a80c2b686"><li id="gaussdb_03_0072__li612172720122"><span>Log in to the management console.</span></li><li id="gaussdb_03_0072__li1712327181216"><span>Click <span><img id="gaussdb_03_0072__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0072__li712102751213"><span>Click <strong id="gaussdb_03_0072__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0072__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0072__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0072__ld614deee55ec43dd853e08591f57dc6b"><span>On the <span class="uicontrol" id="gaussdb_03_0072__uicontrol182311199020"><b>Parameter Templates</b></span> page, click <span class="uicontrol" id="gaussdb_03_0072__uicontrol1323220191605"><b>Create Parameter Template</b></span>.</span></li><li id="gaussdb_03_0072__lc179a8ec923940d69f8b255392d22480"><span>In the displayed dialog box, configure required information and click <strong id="gaussdb_03_0072__b19945185113019">OK</strong>.</span><p><ul id="gaussdb_03_0072__u44451e1258344d23af4083dd22d99beb"><li id="gaussdb_03_0072__l054d879e10224dda9a59b1c5b1777d73">Select a DB engine for the parameter template.</li><li id="gaussdb_03_0072__l5b0b55c0be574a30b2971df004f0dac7">The template name must consist of 1 to 64 characters. It can contain only uppercase letters, lowercase letters, digits, hyphens (-), underscores (_), and periods (.).</li><li id="gaussdb_03_0072__l17da2c371ddf4f77aa1f4e59f5153e39">The description consists of a maximum of 256 characters and cannot contain the carriage return character or the following special characters: &gt;!&lt;"&amp;'=</li></ul>
</p></li></ol> </p></li></ol>
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<ul id="gaussdb_03_0088__en-us_topic_0171122573_ul732244011344"><li id="gaussdb_03_0088__en-us_topic_0171122573_li6590196511344">The DB instance keeps running properly for about 10 minutes.<p id="gaussdb_03_0088__en-us_topic_0171122573_p5624677711344"><a name="gaussdb_03_0088__en-us_topic_0171122573_li6590196511344"></a><a name="en-us_topic_0171122573_li6590196511344"></a>For a newly created DB instance, you need to wait for a while before viewing the monitoring metrics.</p> <ul id="gaussdb_03_0088__en-us_topic_0171122573_ul732244011344"><li id="gaussdb_03_0088__en-us_topic_0171122573_li6590196511344">The DB instance keeps running properly for about 10 minutes.<p id="gaussdb_03_0088__en-us_topic_0171122573_p5624677711344"><a name="gaussdb_03_0088__en-us_topic_0171122573_li6590196511344"></a><a name="en-us_topic_0171122573_li6590196511344"></a>For a newly created DB instance, you need to wait for a while before viewing the monitoring metrics.</p>
</li></ul> </li></ul>
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<div class="section" id="gaussdb_03_0088__en-us_topic_0171122573_section3645894911344"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0088__en-us_topic_0171122394_ofed1a8ddecfe4f30ae4ee41b592d8860"><li id="gaussdb_03_0088__li1254514419124"><span>Log in to the management console.</span></li><li id="gaussdb_03_0088__li1754513415129"><span>Click <span><img id="gaussdb_03_0088__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0088__li1754514414125"><span>Click <strong id="gaussdb_03_0088__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0088__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0088__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0088__en-us_topic_0171122394_li733322918505"><span>On the <strong id="gaussdb_03_0088__b09337278358">Instances</strong> page, locate the target DB instance and click <strong id="gaussdb_03_0088__b179341027103518">View Metric</strong> in the <strong id="gaussdb_03_0088__b1693472763519">Operation</strong> column to go to the Cloud Eye console.</span><p><p id="gaussdb_03_0088__p619712216312">You can use either of the following methods to view monitoring metrics:</p> <div class="section" id="gaussdb_03_0088__en-us_topic_0171122573_section3645894911344"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0088__en-us_topic_0171122394_ofed1a8ddecfe4f30ae4ee41b592d8860"><li id="gaussdb_03_0088__li1254514419124"><span>Log in to the management console.</span></li><li id="gaussdb_03_0088__li1754513415129"><span>Click <span><img id="gaussdb_03_0088__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0088__li1754514414125"><span>Click <strong id="gaussdb_03_0088__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0088__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0088__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0088__en-us_topic_0171122394_li733322918505"><span>On the <strong id="gaussdb_03_0088__b09337278358">Instances</strong> page, locate the target DB instance and click <strong id="gaussdb_03_0088__b179341027103518">View Metric</strong> in the <strong id="gaussdb_03_0088__b1693472763519">Operation</strong> column to go to the Cloud Eye console.</span><p><p id="gaussdb_03_0088__p619712216312">You can use either of the following methods to view monitoring metrics:</p>
<ul id="gaussdb_03_0088__ul173684419317"><li id="gaussdb_03_0088__li372371018311">Click the target DB instance. On the displayed <strong id="gaussdb_03_0088__b11862203111352">Basic Information</strong> page, click <strong id="gaussdb_03_0088__b13863153119351">View Metric</strong> in the upper right corner of the page to go to the Cloud Eye console.</li><li id="gaussdb_03_0088__li1336815412314">At the bottom part of the <strong id="gaussdb_03_0088__b62819333354">Basic Information</strong> page, locate the target read replica and click <strong id="gaussdb_03_0088__b228213323519">View Metric</strong> in the <strong id="gaussdb_03_0088__b1728213313518">Operation</strong> column to go to the Cloud Eye console.</li></ul> <ul id="gaussdb_03_0088__ul173684419317"><li id="gaussdb_03_0088__li372371018311">Click the target DB instance. On the displayed <strong id="gaussdb_03_0088__b11862203111352">Basic Information</strong> page, click <strong id="gaussdb_03_0088__b13863153119351">View Metric</strong> in the upper right corner of the page to go to the Cloud Eye console.</li><li id="gaussdb_03_0088__li1336815412314">At the bottom part of the <strong id="gaussdb_03_0088__b62819333354">Basic Information</strong> page, locate the target read replica and click <strong id="gaussdb_03_0088__b228213323519">View Metric</strong> in the <strong id="gaussdb_03_0088__b1728213313518">Operation</strong> column to go to the Cloud Eye console.</li></ul>
</p></li><li id="gaussdb_03_0088__li3884818457"><span>On the Cloud Eye console, view DB instance monitoring metrics. </span><p><p id="gaussdb_03_0088__p485391054514">Cloud Eye can monitor performance metrics from the last 1 hour, last 3 hours, last 12 hours, last 24 hours or last 7 days.</p> </p></li><li id="gaussdb_03_0088__li3884818457"><span>On the Cloud Eye console, view DB instance monitoring metrics. </span><p><p id="gaussdb_03_0088__p485391054514">Cloud Eye can monitor performance metrics from the last 1 hour, last 3 hours, last 12 hours, last 24 hours or last 7 days.</p>
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<div class="notice" id="gaussdb_03_0092__note1872613734311"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><ul id="gaussdb_03_0092__ul19406164854319"><li id="gaussdb_03_0092__li5407184824319">Changing the CPU and memory specifications will cause the instance to reboot. To prevent service interruptions, change the instance specifications during off-peak hours.</li><li id="gaussdb_03_0092__li1843555011437">To prevent traffic congestion during peak hours, you are advised to reboot the DB instance during off-peak hours.</li></ul> <div class="notice" id="gaussdb_03_0092__note1872613734311"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><ul id="gaussdb_03_0092__ul19406164854319"><li id="gaussdb_03_0092__li5407184824319">Changing the CPU and memory specifications will cause the instance to reboot. To prevent service interruptions, change the instance specifications during off-peak hours.</li><li id="gaussdb_03_0092__li1843555011437">To prevent traffic congestion during peak hours, you are advised to reboot the DB instance during off-peak hours.</li></ul>
</div></div> </div></div>
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<div class="section" id="gaussdb_03_0092__en-us_topic_0192953906_section4298797218435"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0092__en-us_topic_0192953906_ol5947368818435"><li id="gaussdb_03_0092__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0092__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0092__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0092__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0092__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0092__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0092__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0092__li94335118165"><span>You can change the instance specifications in either of the following ways:</span><p><ul id="gaussdb_03_0092__ul793313811161"><li id="gaussdb_03_0092__li109335813160">On the <span class="uicontrol" id="gaussdb_03_0092__en-us_topic_0192953906_uicontrol1223145619914"><b>Instances</b></span> page, locate the target DB instance and choose <span class="uicontrol" id="gaussdb_03_0092__en-us_topic_0192953906_uicontrol42324561915"><b>More</b></span> &gt; <span class="uicontrol" id="gaussdb_03_0092__en-us_topic_0192953906_uicontrol9233155612917"><b>Change Instance Specifications</b></span> in the <span class="uicontrol" id="gaussdb_03_0092__en-us_topic_0192953906_uicontrol192351956397"><b>Operation</b></span> column.</li><li id="gaussdb_03_0092__li5454151131618">Click the target DB instance to go to the <strong id="gaussdb_03_0092__b9890114922913">Basic Information</strong> page. In the <strong id="gaussdb_03_0092__b166552057122914">DB Instance Information</strong> area, click <strong id="gaussdb_03_0092__b17702182153014">Change</strong> in the <strong id="gaussdb_03_0092__b13398929173011">Instance Specifications</strong> field.</li></ul> <div class="section" id="gaussdb_03_0092__en-us_topic_0192953906_section4298797218435"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0092__en-us_topic_0192953906_ol5947368818435"><li id="gaussdb_03_0092__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0092__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0092__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0092__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0092__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0092__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0092__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0092__li94335118165"><span>You can change the instance specifications in either of the following ways:</span><p><ul id="gaussdb_03_0092__ul793313811161"><li id="gaussdb_03_0092__li109335813160">On the <span class="uicontrol" id="gaussdb_03_0092__en-us_topic_0192953906_uicontrol1223145619914"><b>Instances</b></span> page, locate the target DB instance and choose <span class="uicontrol" id="gaussdb_03_0092__en-us_topic_0192953906_uicontrol42324561915"><b>More</b></span> &gt; <span class="uicontrol" id="gaussdb_03_0092__en-us_topic_0192953906_uicontrol9233155612917"><b>Change Instance Specifications</b></span> in the <span class="uicontrol" id="gaussdb_03_0092__en-us_topic_0192953906_uicontrol192351956397"><b>Operation</b></span> column.</li><li id="gaussdb_03_0092__li5454151131618">Click the target DB instance to go to the <strong id="gaussdb_03_0092__b9890114922913">Basic Information</strong> page. In the <strong id="gaussdb_03_0092__b166552057122914">DB Instance Information</strong> area, click <strong id="gaussdb_03_0092__b17702182153014">Change</strong> in the <strong id="gaussdb_03_0092__b13398929173011">Instance Specifications</strong> field.</li></ul>
</p></li><li id="gaussdb_03_0092__en-us_topic_0192953906_lf939df2e325d47d490c6ffdacf5f0b19"><span>On the displayed page, specify the new instance specifications, and click <strong id="gaussdb_03_0092__b868737105110">Next</strong>.</span></li><li id="gaussdb_03_0092__li6351398154947"><span>On the displayed page, confirm the instance specifications.</span><p><ul id="gaussdb_03_0092__ul39403645154947"><li id="gaussdb_03_0092__li19088491154947">If you need to modify your settings, click <strong id="gaussdb_03_0092__b1212144125112">Previous</strong> to go back to the page where you specify details.</li><li id="gaussdb_03_0092__li50208416144741">If you do not need to modify your settings, click <strong id="gaussdb_03_0092__b11500175219516">Submit</strong>.</li></ul> </p></li><li id="gaussdb_03_0092__en-us_topic_0192953906_lf939df2e325d47d490c6ffdacf5f0b19"><span>On the displayed page, specify the new instance specifications, and click <strong id="gaussdb_03_0092__b868737105110">Next</strong>.</span></li><li id="gaussdb_03_0092__li6351398154947"><span>On the displayed page, confirm the instance specifications.</span><p><ul id="gaussdb_03_0092__ul39403645154947"><li id="gaussdb_03_0092__li19088491154947">If you need to modify your settings, click <strong id="gaussdb_03_0092__b1212144125112">Previous</strong> to go back to the page where you specify details.</li><li id="gaussdb_03_0092__li50208416144741">If you do not need to modify your settings, click <strong id="gaussdb_03_0092__b11500175219516">Submit</strong>.</li></ul>
</p></li><li id="gaussdb_03_0092__en-us_topic_0192953906_li984592715347"><span>View the DB instance specification change result.</span><p><p id="gaussdb_03_0092__p9528195254714">Changing the instance specifications takes 5–15 minutes. During this period, the status of the instance on the <strong id="gaussdb_03_0092__b1510674811">Instances</strong> page is <strong id="gaussdb_03_0092__b55114719810">Changing instance specifications</strong>. After a few minutes, you can click the instance name to view the new instance specifications on the displayed <span class="uicontrol" id="gaussdb_03_0092__uicontrol125111876813"><b>Basic Information</b></span> page.</p> </p></li><li id="gaussdb_03_0092__en-us_topic_0192953906_li984592715347"><span>View the DB instance specification change result.</span><p><p id="gaussdb_03_0092__p9528195254714">Changing the instance specifications takes 5–15 minutes. During this period, the status of the instance on the <strong id="gaussdb_03_0092__b1510674811">Instances</strong> page is <strong id="gaussdb_03_0092__b55114719810">Changing instance specifications</strong>. After a few minutes, you can click the instance name to view the new instance specifications on the displayed <span class="uicontrol" id="gaussdb_03_0092__uicontrol125111876813"><b>Basic Information</b></span> page.</p>
<div class="notice" id="gaussdb_03_0092__en-us_topic_0192953906_note11544369163244"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0092__p2058413141616">After the specifications of DB instances 8.0 are changed, the system will change the values of the following parameters accordingly: <span class="parmname" id="gaussdb_03_0092__parmname658613161612"><b>innodb_buffer_pool_size</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname55814134163"><b>innodb_log_buffer_size</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname1158191391617"><b>max_connections</b></span>, <span class="parmname" id="gaussdb_03_0092__en-us_topic_0192953906_parmname242841101702"><b>innodb_buffer_pool_instances</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname16420102361811"><b>innodb_page_cleaners</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname48637308184"><b>innodb_parallel_read_threads</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname284703631820"><b>innodb_read_io_threads</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname2224154220185"><b>innodb_write_io_threads</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname186201646131820"><b>threadpool_size</b></span> and <span class="parmname" id="gaussdb_03_0092__en-us_topic_0192953906_parmname3195339417017"><b>query_cache_size</b></span>.</p> <div class="notice" id="gaussdb_03_0092__en-us_topic_0192953906_note11544369163244"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0092__p2058413141616">After the specifications of DB instances 8.0 are changed, the system will change the values of the following parameters accordingly: <span class="parmname" id="gaussdb_03_0092__parmname658613161612"><b>innodb_buffer_pool_size</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname55814134163"><b>innodb_log_buffer_size</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname1158191391617"><b>max_connections</b></span>, <span class="parmname" id="gaussdb_03_0092__en-us_topic_0192953906_parmname242841101702"><b>innodb_buffer_pool_instances</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname16420102361811"><b>innodb_page_cleaners</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname48637308184"><b>innodb_parallel_read_threads</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname284703631820"><b>innodb_read_io_threads</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname2224154220185"><b>innodb_write_io_threads</b></span>, <span class="parmname" id="gaussdb_03_0092__parmname186201646131820"><b>threadpool_size</b></span> and <span class="parmname" id="gaussdb_03_0092__en-us_topic_0192953906_parmname3195339417017"><b>query_cache_size</b></span>.</p>

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<p id="gaussdb_03_0111__en-us_topic_0192954053_ab425f8e7964943a8872515e735a80847">After a DB instance is created, you can <span class="keyword" id="gaussdb_03_0111__en-us_topic_0192954053_keyword1429162818452">create read replicas</span> for it.</p> <p id="gaussdb_03_0111__en-us_topic_0192954053_ab425f8e7964943a8872515e735a80847">After a DB instance is created, you can <span class="keyword" id="gaussdb_03_0111__en-us_topic_0192954053_keyword1429162818452">create read replicas</span> for it.</p>
<ul id="gaussdb_03_0111__ul12773183744620"><li id="gaussdb_03_0111__li1060820521367">If you select the single AZ type, read replicas are deployed in the same AZ as the primary node.</li><li id="gaussdb_03_0111__li1377313376468">If you select the multi-AZ type, read replicas are deployed in different AZs from the primary node to ensure high reliability.</li></ul> <ul id="gaussdb_03_0111__ul12773183744620"><li id="gaussdb_03_0111__li1060820521367">If you select the single AZ type, read replicas are deployed in the same AZ as the primary node.</li><li id="gaussdb_03_0111__li1377313376468">If you select the multi-AZ type, read replicas are deployed in different AZs from the primary node to ensure high reliability.</li></ul>
<div class="section" id="gaussdb_03_0111__en-us_topic_0192954053_s738501c07aa4426eaeea764d9297251d"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0111__en-us_topic_0192954053_o4ea77a7629f0406da65203f5b2a24303"><li id="gaussdb_03_0111__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0111__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0111__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0111__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0111__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0111__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0111__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0111__en-us_topic_0192954053_lecad2be0d83a413d8227da27c228a13c"><span>On the <span class="uicontrol" id="gaussdb_03_0111__en-us_topic_0192954053_u2f77692195e54523869bd8ec29f0cf54"><b>Instances</b></span> page, locate the target DB instance and choose <strong id="gaussdb_03_0111__b747514710278">More</strong> &gt; <strong id="gaussdb_03_0111__b7501550152714">Create Read Replica</strong> in the <span class="uicontrol" id="gaussdb_03_0111__en-us_topic_0192954053_u455fb94d5ad14353846b6e38709add27"><b>Operation</b></span> column.</span><p><p id="gaussdb_03_0111__en-us_topic_0192954053_p158414571257">Alternatively, click the target DB instance. In the <strong id="gaussdb_03_0111__b5751412194813">DB Instance Topology</strong> area on the <span class="uicontrol" id="gaussdb_03_0111__en-us_topic_0192954053_uicontrol061294717610"><b>Basic Information</b></span> page, click <span><img id="gaussdb_03_0111__en-us_topic_0192954053_image1426465281914" src="en-us_image_0000001403218753.png"></span> to create read replicas.</p> <div class="section" id="gaussdb_03_0111__en-us_topic_0192954053_s738501c07aa4426eaeea764d9297251d"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0111__en-us_topic_0192954053_o4ea77a7629f0406da65203f5b2a24303"><li id="gaussdb_03_0111__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0111__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0111__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0111__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0111__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0111__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0111__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0111__en-us_topic_0192954053_lecad2be0d83a413d8227da27c228a13c"><span>On the <span class="uicontrol" id="gaussdb_03_0111__en-us_topic_0192954053_u2f77692195e54523869bd8ec29f0cf54"><b>Instances</b></span> page, locate the target DB instance and choose <strong id="gaussdb_03_0111__b747514710278">More</strong> &gt; <strong id="gaussdb_03_0111__b7501550152714">Create Read Replica</strong> in the <span class="uicontrol" id="gaussdb_03_0111__en-us_topic_0192954053_u455fb94d5ad14353846b6e38709add27"><b>Operation</b></span> column.</span><p><p id="gaussdb_03_0111__en-us_topic_0192954053_p158414571257">Alternatively, click the target DB instance. In the <strong id="gaussdb_03_0111__b5751412194813">DB Instance Topology</strong> area on the <span class="uicontrol" id="gaussdb_03_0111__en-us_topic_0192954053_uicontrol061294717610"><b>Basic Information</b></span> page, click <span><img id="gaussdb_03_0111__en-us_topic_0192954053_image1426465281914" src="en-us_image_0000001403218753.png"></span> to create read replicas.</p>
</p></li><li id="gaussdb_03_0111__en-us_topic_0192954053_ldbf12a91659a4dc09477278d640012ab"><span>On the displayed page, specify <span class="uicontrol" id="gaussdb_03_0111__uicontrol155139593620"><b>Failover Priority</b></span> and <span class="uicontrol" id="gaussdb_03_0111__uicontrol8513195163614"><b>Quantity</b></span> and then click <span class="uicontrol" id="gaussdb_03_0111__uicontrol45131551366"><b>Create Now</b></span>.</span></li><li id="gaussdb_03_0111__en-us_topic_0192954053_li22028104294"><span>After read replicas are created, you can manage them following the instructions provided in <a href="gaussdb_03_0112.html">Managing a Read Replica</a>.</span></li></ol> </p></li><li id="gaussdb_03_0111__en-us_topic_0192954053_ldbf12a91659a4dc09477278d640012ab"><span>On the displayed page, specify <span class="uicontrol" id="gaussdb_03_0111__uicontrol155139593620"><b>Failover Priority</b></span> and <span class="uicontrol" id="gaussdb_03_0111__uicontrol8513195163614"><b>Quantity</b></span> and then click <span class="uicontrol" id="gaussdb_03_0111__uicontrol45131551366"><b>Create Now</b></span>.</span></li><li id="gaussdb_03_0111__en-us_topic_0192954053_li22028104294"><span>After read replicas are created, you can manage them following the instructions provided in <a href="gaussdb_03_0112.html">Managing a Read Replica</a>.</span></li></ol>
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<h1 class="topictitle1">Managing a Read Replica</h1> <h1 class="topictitle1">Managing a Read Replica</h1>
<div id="body1582194662398"><p id="gaussdb_03_0112__p12441171393214">You can manage read replicas after they are created, such as <a href="gaussdb_03_0113.html">promoting a read replica to the primary node</a> and <a href="gaussdb_03_0114.html">delete a read replica</a>.</p> <div id="body1582194662398"><p id="gaussdb_03_0112__p12441171393214">You can manage read replicas after they are created, such as <a href="gaussdb_03_0113.html">promoting a read replica to the primary node</a> and <a href="gaussdb_03_0114.html">delete a read replica</a>.</p>
<div class="section" id="gaussdb_03_0112__en-us_topic_0192953793_section53740355201937"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0112__en-us_topic_0192953793_ol6131383820200"><li id="gaussdb_03_0112__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0112__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0112__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0112__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0112__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0112__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0112__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0112__en-us_topic_0192953793_li61613191202055"><span>Click the target DB instance to go to the <strong id="gaussdb_03_0112__en-us_topic_0192953793_b703801789172521">Basic Information</strong> page.</span></li><li id="gaussdb_03_0112__en-us_topic_0192953793_li886812451739"><span>At the bottom of the <strong id="gaussdb_03_0112__b18194132071613">Basic Information</strong> page, you can view and manage all read replicas associated with the DB instance.</span></li></ol> <div class="section" id="gaussdb_03_0112__en-us_topic_0192953793_section53740355201937"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0112__en-us_topic_0192953793_ol6131383820200"><li id="gaussdb_03_0112__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0112__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0112__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0112__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0112__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0112__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0112__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0112__en-us_topic_0192953793_li61613191202055"><span>Click the target DB instance to go to the <strong id="gaussdb_03_0112__en-us_topic_0192953793_b703801789172521">Basic Information</strong> page.</span></li><li id="gaussdb_03_0112__en-us_topic_0192953793_li886812451739"><span>At the bottom of the <strong id="gaussdb_03_0112__b18194132071613">Basic Information</strong> page, you can view and manage all read replicas associated with the DB instance.</span></li></ol>
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<h1 class="topictitle1">Promoting a Read Replica to the Primary Node</h1> <h1 class="topictitle1">Promoting a Read Replica to the Primary Node</h1>
<div id="body1582199944975"><p id="gaussdb_03_0113__p012221712212">A <span id="gaussdb_03_0113__text13188146859">GaussDB(for MySQL)</span> DB instance consists of a primary node and multiple read replicas. In addition to <a href="#gaussdb_03_0113__section1762033653214">automatic failover</a> scenarios, you can perform a <a href="#gaussdb_03_0113__section133052410322">manual switchover</a> to promote a read replica to the new primary node.</p> <div id="body1582199944975"><p id="gaussdb_03_0113__p012221712212">A <span id="gaussdb_03_0113__text13188146859">GaussDB(for MySQL)</span> DB instance consists of a primary node and multiple read replicas. In addition to <a href="#gaussdb_03_0113__section1762033653214">automatic failover</a> scenarios, you can perform a <a href="#gaussdb_03_0113__section133052410322">manual switchover</a> to promote a read replica to the new primary node.</p>
<div class="section" id="gaussdb_03_0113__section133052410322"><a name="gaussdb_03_0113__section133052410322"></a><a name="section133052410322"></a><h4 class="sectiontitle">Manual Switchover</h4><ol id="gaussdb_03_0113__en-us_topic_0179844062_en-us_topic_0171122319_ol49836179475"><li id="gaussdb_03_0113__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0113__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0113__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0113__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0113__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0113__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0113__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0113__en-us_topic_0179844062_en-us_topic_0171122319_li124061901846"><span>On the <strong id="gaussdb_03_0113__b128394303249">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_03_0113__en-us_topic_0179844062_en-us_topic_0171122319_li9984171764715"><span>At the bottom of the <strong id="gaussdb_03_0113__b915053815243">Basic Information</strong> page, locate the read replica to be promoted and click <strong id="gaussdb_03_0113__b18151163812248">Promote to Primary</strong> in the <strong id="gaussdb_03_0113__b615293872416">Operation</strong> column.</span></li><li id="gaussdb_03_0113__li1434433495816"><span>In the displayed dialog box, click <span class="uicontrol" id="gaussdb_03_0113__uicontrol747613501010"><b>Yes</b></span>.</span><p><ul id="gaussdb_03_0113__ul14468352205817"><li id="gaussdb_03_0113__li92918381363">During the manual switchover, an intermittent disconnection may occur for about 30 seconds. Ensure that your applications support automatic reconnection.</li><li id="gaussdb_03_0113__li146815213583">During the manual switchover, the instance status is <strong id="gaussdb_03_0113__b292610612298">Promoting to primary</strong> and this process takes several seconds or minutes.</li><li id="gaussdb_03_0113__li1021805455815">After the switchover is complete, the node running status changes to <strong id="gaussdb_03_0113__b15726292159">Available</strong>. The node types of the original primary node and read replica have been exchanged.<div class="notice" id="gaussdb_03_0113__note1626521503818"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0113__p1026581510383">Services may be intermittently interrupted for several seconds or minutes when the read replica is promoted to the primary node.</p> <div class="section" id="gaussdb_03_0113__section133052410322"><a name="gaussdb_03_0113__section133052410322"></a><a name="section133052410322"></a><h4 class="sectiontitle">Manual Switchover</h4><ol id="gaussdb_03_0113__en-us_topic_0179844062_en-us_topic_0171122319_ol49836179475"><li id="gaussdb_03_0113__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0113__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0113__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0113__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0113__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0113__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0113__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0113__en-us_topic_0179844062_en-us_topic_0171122319_li124061901846"><span>On the <strong id="gaussdb_03_0113__b128394303249">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_03_0113__en-us_topic_0179844062_en-us_topic_0171122319_li9984171764715"><span>At the bottom of the <strong id="gaussdb_03_0113__b915053815243">Basic Information</strong> page, locate the read replica to be promoted and click <strong id="gaussdb_03_0113__b18151163812248">Promote to Primary</strong> in the <strong id="gaussdb_03_0113__b615293872416">Operation</strong> column.</span></li><li id="gaussdb_03_0113__li1434433495816"><span>In the displayed dialog box, click <span class="uicontrol" id="gaussdb_03_0113__uicontrol747613501010"><b>Yes</b></span>.</span><p><ul id="gaussdb_03_0113__ul14468352205817"><li id="gaussdb_03_0113__li92918381363">During the manual switchover, an intermittent disconnection may occur for about 30 seconds. Ensure that your applications support automatic reconnection.</li><li id="gaussdb_03_0113__li146815213583">During the manual switchover, the instance status is <strong id="gaussdb_03_0113__b292610612298">Promoting to primary</strong> and this process takes several seconds or minutes.</li><li id="gaussdb_03_0113__li1021805455815">After the switchover is complete, the node running status changes to <strong id="gaussdb_03_0113__b15726292159">Available</strong>. The node types of the original primary node and read replica have been exchanged.<div class="notice" id="gaussdb_03_0113__note1626521503818"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="gaussdb_03_0113__p1026581510383">Services may be intermittently interrupted for several seconds or minutes when the read replica is promoted to the primary node.</p>
</div></div> </div></div>
</li></ul> </li></ul>
</p></li></ol> </p></li></ol>

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</div> </div>
<div class="section" id="gaussdb_03_0114__section1350335144812"><h4 class="sectiontitle">Constraints</h4><ul id="gaussdb_03_0114__en-us_topic_0171122319_ul1098915407426"><li id="gaussdb_03_0114__li1952215513571">You can delete read replicas only when the DB instance has two or more than two read replicas. A GaussDB(for MySQL) DB instance must have at least one read replica.</li><li id="gaussdb_03_0114__en-us_topic_0171122319_li18506142104210">DB instances cannot be deleted when operations are being performed on them. They can be deleted only after the operations are completed.</li></ul> <div class="section" id="gaussdb_03_0114__section1350335144812"><h4 class="sectiontitle">Constraints</h4><ul id="gaussdb_03_0114__en-us_topic_0171122319_ul1098915407426"><li id="gaussdb_03_0114__li1952215513571">You can delete read replicas only when the DB instance has two or more than two read replicas. A GaussDB(for MySQL) DB instance must have at least one read replica.</li><li id="gaussdb_03_0114__en-us_topic_0171122319_li18506142104210">DB instances cannot be deleted when operations are being performed on them. They can be deleted only after the operations are completed.</li></ul>
</div> </div>
<div class="section" id="gaussdb_03_0114__section1779714480488"><h4 class="sectiontitle"><span class="keyword" id="gaussdb_03_0114__keyword92714523187">Procedure</span></h4><ol id="gaussdb_03_0114__en-us_topic_0179844062_en-us_topic_0171122319_ol49836179475"><li id="gaussdb_03_0114__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0114__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0114__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0114__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0114__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_03_0114__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_03_0114__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_03_0114__en-us_topic_0179844062_en-us_topic_0171122319_li124061901846"><span>On the <strong id="gaussdb_03_0114__b8818195124716">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_03_0114__en-us_topic_0179844062_en-us_topic_0171122319_li9984171764715"><span>At the bottom of the <strong id="gaussdb_03_0114__b97193814473">Basic Information</strong> page, locate the read replicas to be deleted and choose <strong id="gaussdb_03_0114__b930144255414">More</strong> &gt; <strong id="gaussdb_03_0114__b771914818474">Delete</strong> in the <strong id="gaussdb_03_0114__b572078184714">Operation</strong> column. </span><p><p id="gaussdb_03_0114__en-us_topic_0179844062_p1243671818146">For high availability reasons, the system reserves an available read replica. The read replica cannot be deleted until the associated DB instance is deleted.</p> <div class="section" id="gaussdb_03_0114__section1779714480488"><h4 class="sectiontitle"><span class="keyword" id="gaussdb_03_0114__keyword92714523187">Procedure</span></h4><ol id="gaussdb_03_0114__en-us_topic_0179844062_en-us_topic_0171122319_ol49836179475"><li id="gaussdb_03_0114__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0114__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0114__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0114__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0114__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0114__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0114__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0114__en-us_topic_0179844062_en-us_topic_0171122319_li124061901846"><span>On the <strong id="gaussdb_03_0114__b8818195124716">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_03_0114__en-us_topic_0179844062_en-us_topic_0171122319_li9984171764715"><span>At the bottom of the <strong id="gaussdb_03_0114__b97193814473">Basic Information</strong> page, locate the read replicas to be deleted and choose <strong id="gaussdb_03_0114__b930144255414">More</strong> &gt; <strong id="gaussdb_03_0114__b771914818474">Delete</strong> in the <strong id="gaussdb_03_0114__b572078184714">Operation</strong> column. </span><p><p id="gaussdb_03_0114__en-us_topic_0179844062_p1243671818146">For high availability reasons, the system reserves an available read replica. The read replica cannot be deleted until the associated DB instance is deleted.</p>
</p></li><li id="gaussdb_03_0114__en-us_topic_0179844062_en-us_topic_0171122319_li398541724715"><span>In the displayed dialog box, click <span class="parmname" id="gaussdb_03_0114__parmname184461607482"><b>Yes</b></span>. Refresh the <strong id="gaussdb_03_0114__b1445119024818">Instances</strong> page later to check that the deletion is successful.</span></li></ol> </p></li><li id="gaussdb_03_0114__en-us_topic_0179844062_en-us_topic_0171122319_li398541724715"><span>In the displayed dialog box, click <span class="parmname" id="gaussdb_03_0114__parmname184461607482"><b>Yes</b></span>. Refresh the <strong id="gaussdb_03_0114__b1445119024818">Instances</strong> page later to check that the deletion is successful.</span></li></ol>
</div> </div>
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<h1 class="topictitle1">Changing an Instance Description</h1> <h1 class="topictitle1">Changing an Instance Description</h1>
<div id="body8662426"><div class="section" id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_section241540814823"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_p4215797114827">After an instance is created, you can add a description.</p> <div id="body8662426"><div class="section" id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_section241540814823"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_p4215797114827">After an instance is created, you can add a description.</p>
</div> </div>
<div class="section" id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_section4193143613586"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_ol36506495172844"><li id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0132__en-us_topic_0179843894_image192529212293" src="en-us_image_0218527002.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0132__li181542917431"><span>Click <span><img id="gaussdb_03_0132__image96758393138" src="en-us_image_0000001563934877.png"></span> in the upper left corner of the page and choose <strong id="gaussdb_03_0132__b7798711182916">Databases</strong> &gt; <strong id="gaussdb_03_0132__b979831119297">GaussDB</strong>. In the navigation pane on the left, click <strong id="gaussdb_03_0132__b17404142212298"><span id="gaussdb_03_0132__text1340362210295">GaussDB(for MySQL)</span></strong>.</span></li><li id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_li39994717339"><span>On the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b925410293573">Instances</strong> page, locate the instance that you want to edit the description for and click <span><img id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_image36518582195" src="en-us_image_0000001513008494.png"></span> in the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b16545212251">Description</strong> column to edit the instance description. Then, click <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b147091914491">OK</strong>.</span><p><p id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_p11583104710346">Alternatively, click the instance name to go to the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b26165295818">Basic Information</strong> page. In the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b2293181873613">DB Instance Information</strong> area, click <span><img id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_image163923262206" src="en-us_image_0000001513008494.png"></span> in the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b185445247517">Description</strong> field to edit the instance description.</p> <div class="section" id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_section4193143613586"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_ol36506495172844"><li id="gaussdb_03_0132__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0132__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0132__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0132__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0132__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0132__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0132__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_li39994717339"><span>On the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b925410293573">Instances</strong> page, locate the instance that you want to edit the description for and click <span><img id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_image36518582195" src="en-us_image_0000001513008494.png"></span> in the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b16545212251">Description</strong> column to edit the instance description. Then, click <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b147091914491">OK</strong>.</span><p><p id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_p11583104710346">Alternatively, click the instance name to go to the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b26165295818">Basic Information</strong> page. In the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b2293181873613">DB Instance Information</strong> area, click <span><img id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_image163923262206" src="en-us_image_0000001513008494.png"></span> in the <strong id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_b185445247517">Description</strong> field to edit the instance description.</p>
<div class="note" id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_note74883432419"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_03_0132__en-us_topic_0000001147019632_p1335136181913">The instance description can contain up to 64 characters, and cannot start with and end with a space. Only letters, digits, hyphens (-), underscores (_), periods (.), and spaces are allowed.</p> <div class="note" id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_note74883432419"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_03_0132__en-us_topic_0000001147019632_p1335136181913">The instance description can contain up to 64 characters, and cannot start with and end with a space. Only letters, digits, hyphens (-), underscores (_), periods (.), and spaces are allowed.</p>
</div></div> </div></div>
<ul id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_ul9404737113613"><li id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_li639133082019">To submit the change, click <span><img id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_image17386173042011" src="en-us_image_0000001563528757.png"></span>.</li><li id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_li47344298441">To cancel the change, click <span><img id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_image47340297445" src="en-us_image_0000001512768946.png"></span>.</li></ul> <ul id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_ul9404737113613"><li id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_li639133082019">To submit the change, click <span><img id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_image17386173042011" src="en-us_image_0000001563528757.png"></span>.</li><li id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_li47344298441">To cancel the change, click <span><img id="gaussdb_03_0132__en-us_topic_0000001147019632_en-us_topic_0215235079_image47340297445" src="en-us_image_0000001512768946.png"></span>.</li></ul>

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<h1 class="topictitle1">Enabling or Disabling SQL Explorer</h1> <h1 class="topictitle1">Enabling or Disabling SQL Explorer</h1>
<div id="body8662426"><p id="gaussdb_03_0152__en-us_topic_0000001349831244_p2845114319325">Enabling SQL Explorer will allow GaussDB(for MySQL) to store all SQL statement logs for analysis.</p> <div id="body8662426"><p id="gaussdb_03_0152__en-us_topic_0000001349831244_p2845114319325">Enabling SQL Explorer will allow GaussDB(for MySQL) to store all SQL statement logs for analysis.</p>
<p id="gaussdb_03_0152__en-us_topic_0000001349831244_p15973915497">By default, SQL Explorer is disabled for GaussDB(for MySQL). This section describes how to enable and disable SQL Explorer.</p> <p id="gaussdb_03_0152__en-us_topic_0000001349831244_p15973915497">By default, SQL Explorer is disabled for GaussDB(for MySQL). This section describes how to enable and disable SQL Explorer.</p>
<div class="section" id="gaussdb_03_0152__en-us_topic_0000001349831244_section582502014126"><h4 class="sectiontitle">Enabling SQL Explorer</h4><ol id="gaussdb_03_0152__en-us_topic_0000001349831244_ol13346242151215"><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li123467422128"><span>Log in to the console.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li153464424128"><span>Click <span><img id="gaussdb_03_0152__en-us_topic_0000001400271017_image192529212293" src="en-us_image_0000001400391461.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li126801142141411"><span>Under <strong id="gaussdb_03_0152__en-us_topic_0000001400271017_b19831738172519">Database</strong>, click <strong id="gaussdb_03_0152__en-us_topic_0000001400271017_b10835382257">GaussDB</strong>. In the navigation pane on the left, click <strong id="gaussdb_03_0152__en-us_topic_0000001400271017_b9309121415288"><span id="gaussdb_03_0152__en-us_topic_0000001400271017_text12712145431415">GaussDB(for MySQL)</span></strong>.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li334764218128"><span>On the <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b1298874955310">Instances</strong> page, click the instance name to go to the <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b98055178711">Basic Information</strong> page.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li83471423121"><span>In the navigation pane on the left, choose <span class="uicontrol" id="gaussdb_03_0152__en-us_topic_0000001349831244_uicontrol1192105825312"><b>Advanced O&amp;M</b></span>.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li1534744201211"><span>In the <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b1875719511554">SQL Explorer</strong> tab, set <span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image153947328147" src="en-us_image_0000001496610421.png"></span> to <span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image19402163218142" src="en-us_image_0000001497009921.png"></span>. In the displayed dialog box, select <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b19731122855812">I have read the agreement and agree to having my data stored</strong>, and click <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b2088917110014">OK</strong>.</span><p><div class="fignone" id="gaussdb_03_0152__en-us_topic_0000001349831244_fig855213472612"><span class="figcap"><b>Figure 1 </b>Enabling SQL Explorer</span><br><span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image45529410261" src="en-us_image_0000001446730040.png"></span></div> <div class="section" id="gaussdb_03_0152__en-us_topic_0000001349831244_section582502014126"><h4 class="sectiontitle">Enabling SQL Explorer</h4><ol id="gaussdb_03_0152__en-us_topic_0000001349831244_ol13346242151215"><li id="gaussdb_03_0152__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_03_0152__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_03_0152__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0152__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_03_0152__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_03_0152__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_03_0152__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li334764218128"><span>On the <strong id="gaussdb_03_0152__b1277135192111">Instances</strong> page, click the target instance.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li83471423121"><span>In the navigation pane on the left, choose <span class="uicontrol" id="gaussdb_03_0152__en-us_topic_0000001349831244_uicontrol1192105825312"><b>Advanced O&amp;M</b></span>.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li1534744201211"><span>In the <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b1875719511554">SQL Explorer</strong> tab, set <span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image153947328147" src="en-us_image_0000001496610421.png"></span> to <span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image19402163218142" src="en-us_image_0000001497009921.png"></span>. In the displayed dialog box, select <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b19731122855812">I have read the agreement and agree to having my data stored</strong>, and click <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b2088917110014">OK</strong>.</span><p><div class="fignone" id="gaussdb_03_0152__en-us_topic_0000001349831244_fig855213472612"><span class="figcap"><b>Figure 1 </b>Enabling SQL Explorer</span><br><span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image45529410261" src="en-us_image_0000001446730040.png"></span></div>
<div class="note" id="gaussdb_03_0152__en-us_topic_0000001349831244_note198781799161"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_03_0152__en-us_topic_0000001349831244_p68784914163">SQL data is stored for 1 day by default and will be automatically deleted after that time expires.</p> <div class="note" id="gaussdb_03_0152__en-us_topic_0000001349831244_note198781799161"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_03_0152__en-us_topic_0000001349831244_p68784914163">SQL data is stored for 1 day by default and will be automatically deleted after that time expires.</p>
</div></div> </div></div>
</p></li></ol> </p></li></ol>
</div> </div>
<div class="section" id="gaussdb_03_0152__en-us_topic_0000001349831244_section3352145013120"><h4 class="sectiontitle">Disabling SQL Explorer</h4><ol id="gaussdb_03_0152__en-us_topic_0000001349831244_ol16431112119136"><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li74310218136"><span>Log in to the console.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li20431112111135"><span>Click <span><img id="gaussdb_03_0152__en-us_topic_0000001400271017_image192529212293_1" src="en-us_image_0000001400391461.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li14942114116106"><span>Under <strong id="gaussdb_03_0152__en-us_topic_0000001400271017_b19831738172519_1">Database</strong>, click <strong id="gaussdb_03_0152__en-us_topic_0000001400271017_b10835382257_1">GaussDB</strong>. In the navigation pane on the left, click <strong id="gaussdb_03_0152__en-us_topic_0000001400271017_b9309121415288_1"><span id="gaussdb_03_0152__en-us_topic_0000001400271017_text12712145431415_1">GaussDB(for MySQL)</span></strong>.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li174318219135"><span>On the <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b14104149182">Instances</strong> page, click the instance name to go to the <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b18820122560">Basic Information</strong> page.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li0431142101312"><span>In the navigation pane on the left, choose <span class="uicontrol" id="gaussdb_03_0152__en-us_topic_0000001349831244_uicontrol253116181811"><b>Advanced O&amp;M</b></span>. Click <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b13338552076">SQL Explorer</strong> and set <span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image652012202175" src="en-us_image_0000001496889725.png"></span> to <span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image185215201178" src="en-us_image_0000001497009925.png"></span>.</span></li></ol> <div class="section" id="gaussdb_03_0152__en-us_topic_0000001349831244_section3352145013120"><h4 class="sectiontitle">Disabling SQL Explorer</h4><ol id="gaussdb_03_0152__en-us_topic_0000001349831244_ol16431112119136"><li id="gaussdb_03_0152__li20741225214"><span>Log in to the management console.</span></li><li id="gaussdb_03_0152__li1174117272110"><span>Click <span><img id="gaussdb_03_0152__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_03_0152__li174112132110"><span>Click <strong id="gaussdb_03_0152__gaussdb_02_0004_b1548312501622_1">Service List</strong>. Under <strong id="gaussdb_03_0152__gaussdb_02_0004_b1748325012210_1">Databases</strong>, click <strong id="gaussdb_03_0152__gaussdb_02_0004_b164831501625_1">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li174318219135"><span>On the <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b14104149182">Instances</strong> page, click the target instance.</span></li><li id="gaussdb_03_0152__en-us_topic_0000001349831244_li0431142101312"><span>In the navigation pane on the left, choose <span class="uicontrol" id="gaussdb_03_0152__en-us_topic_0000001349831244_uicontrol253116181811"><b>Advanced O&amp;M</b></span>. Click <strong id="gaussdb_03_0152__en-us_topic_0000001349831244_b13338552076">SQL Explorer</strong> and set <span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image652012202175" src="en-us_image_0000001496889725.png"></span> to <span><img id="gaussdb_03_0152__en-us_topic_0000001349831244_image185215201178" src="en-us_image_0000001497009925.png"></span>.</span></li></ol>
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<a name="gaussdb_05_0015"></a><a name="gaussdb_05_0015"></a>
<h1 class="topictitle1">Granting Database Permissions</h1>
<div id="body0000002014325085"><div class="section" id="gaussdb_05_0015__section7898787175059"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_05_0015__p0157181861718">You can grant permissions to database users you have created to use specific databases or revoke permissions from specific database users.</p>
</div>
<div class="section" id="gaussdb_05_0015__section461718913309"><h4 class="sectiontitle">Constraints</h4><p id="gaussdb_05_0015__p1839809105811">This operation is not allowed for DB instances that are being restored.</p>
</div>
<div class="section" id="gaussdb_05_0015__section369465195015"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_05_0015__ol798994918127"><li id="gaussdb_05_0015__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_05_0015__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_05_0015__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0015__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_05_0015__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_05_0015__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_05_0015__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_05_0015__lf94dd20d7ce941cb9811ca11c9c31c6b"><span>On the <strong id="gaussdb_05_0015__b117591416122618">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_05_0015__li163815399211"><span>In the navigation pane, choose <strong id="gaussdb_05_0015__b722710190269">Databases</strong>. On the displayed page, locate the target database and click <strong id="gaussdb_05_0015__b1822761915265">Authorize</strong> in the <strong id="gaussdb_05_0015__b2227111918268">Operation</strong> column.</span></li><li id="gaussdb_05_0015__li1451546202212"><span>In the displayed dialog box, select one or more unauthorized database users and click <span class="uicontrol" id="gaussdb_05_0015__uicontrol183615251613"><b>OK</b></span>.</span><p><p id="gaussdb_05_0015__p1976512161221">If no users are available, you can create one by referring to <a href="gaussdbformysql_03_0131.html">Creating a Database Account</a>.</p>
<p id="gaussdb_05_0015__p911082116216"></p>
</p></li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="gaussdbformysql_03_0120.html">Database Management</a></div>
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<div id="body1597738429887"><div class="section" id="gaussdb_05_0018__section732387614651"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_05_0018__p1638354818120">Modifications to parameters in a custom parameter template take effect only after you apply this parameter template to target DB instances.</p> <div id="body1597738429887"><div class="section" id="gaussdb_05_0018__section732387614651"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_05_0018__p1638354818120">Modifications to parameters in a custom parameter template take effect only after you apply this parameter template to target DB instances.</p>
<ul id="gaussdb_05_0018__ul6741843151716"><li id="gaussdb_05_0018__li12955114712175">The parameter <span class="parmname" id="gaussdb_05_0018__en-us_topic_0204854012_en-us_topic_0192953619_parmname38315386194"><b>innodb_buffer_pool_size</b></span> is determined by the memory. DB instances of different specifications have different value ranges. If this parameter value is out of range of the DB instance to which the parameter template applies, the maximum value within the range is used.</li><li id="gaussdb_05_0018__li11741343161710">A parameter template can be applied only to DB instances of the same DB engine version.</li></ul> <ul id="gaussdb_05_0018__ul6741843151716"><li id="gaussdb_05_0018__li12955114712175">The parameter <span class="parmname" id="gaussdb_05_0018__en-us_topic_0204854012_en-us_topic_0192953619_parmname38315386194"><b>innodb_buffer_pool_size</b></span> is determined by the memory. DB instances of different specifications have different value ranges. If this parameter value is out of range of the DB instance to which the parameter template applies, the maximum value within the range is used.</li><li id="gaussdb_05_0018__li11741343161710">A parameter template can be applied only to DB instances of the same DB engine version.</li></ul>
</div> </div>
<div class="section" id="gaussdb_05_0018__section05781558132917"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_05_0018__o695f2c1c7b614765a3d9eb5e257b0bbd"><li id="gaussdb_05_0018__li19419173775012"><span>Log in to the management console.</span></li><li id="gaussdb_05_0018__li1742020376503"><span>Click <span><img id="gaussdb_05_0018__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0018__li1142083714506"><span>Click <strong id="gaussdb_05_0018__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_05_0018__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_05_0018__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_05_0018__li7437257810"><span>On the <strong id="gaussdb_05_0018__b376717150280">Parameter Templates</strong> page, you can apply a default template or a custom template to a target DB instance:</span><p><ul id="gaussdb_05_0018__ul517212618815"><li id="gaussdb_05_0018__li1617220268811">To apply a default template, click <strong id="gaussdb_05_0018__b3410142519281">Default Templates</strong>, locate the target parameter template, and in the <strong id="gaussdb_05_0018__b1141132511282">Operation</strong> column, click <strong id="gaussdb_05_0018__b0411825182817">Apply</strong>.</li><li id="gaussdb_05_0018__li15759194611512">To apply a custom template, click <strong id="gaussdb_05_0018__b7743133392814">Custom Templates</strong>, locate the target parameter template, and in the <strong id="gaussdb_05_0018__b157441833162815">Operation</strong> column, choose <strong id="gaussdb_05_0018__b19745193332819">More</strong> &gt; <strong id="gaussdb_05_0018__b15746633192815">Apply</strong>.</li></ul> <div class="section" id="gaussdb_05_0018__section05781558132917"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_05_0018__o695f2c1c7b614765a3d9eb5e257b0bbd"><li id="gaussdb_05_0018__li19419173775012"><span>Log in to the management console.</span></li><li id="gaussdb_05_0018__li1742020376503"><span>Click <span><img id="gaussdb_05_0018__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0018__li1142083714506"><span>Click <strong id="gaussdb_05_0018__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_05_0018__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_05_0018__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_05_0018__li7437257810"><span>On the <strong id="gaussdb_05_0018__b376717150280">Parameter Templates</strong> page, you can apply a default template or a custom template to a target DB instance:</span><p><ul id="gaussdb_05_0018__ul517212618815"><li id="gaussdb_05_0018__li1617220268811">To apply a default template, click <strong id="gaussdb_05_0018__b3410142519281">Default Templates</strong>, locate the target parameter template, and in the <strong id="gaussdb_05_0018__b1141132511282">Operation</strong> column, click <strong id="gaussdb_05_0018__b0411825182817">Apply</strong>.</li><li id="gaussdb_05_0018__li15759194611512">To apply a custom template, click <strong id="gaussdb_05_0018__b7743133392814">Custom Templates</strong>, locate the target parameter template, and in the <strong id="gaussdb_05_0018__b157441833162815">Operation</strong> column, choose <strong id="gaussdb_05_0018__b19745193332819">More</strong> &gt; <strong id="gaussdb_05_0018__b15746633192815">Apply</strong>.</li></ul>
<p id="gaussdb_05_0018__p3571105014158">A parameter template can be applied to one or more DB instances.</p> <p id="gaussdb_05_0018__p3571105014158">A parameter template can be applied to one or more DB instances.</p>
</p></li><li id="gaussdb_05_0018__li18706155616397"><span>In the displayed dialog box, select one or more DB instances to which the parameter template will apply and click <strong id="gaussdb_05_0018__b1266713514332">OK</strong>.</span><p><p id="gaussdb_05_0018__p316713683017">After the parameter template applies to DB instances successfully, you can view the application records by referring to <a href="gaussdb_05_0098.html">Viewing Application Records of a Parameter Template</a>.</p> </p></li><li id="gaussdb_05_0018__li18706155616397"><span>In the displayed dialog box, select one or more DB instances to which the parameter template will apply and click <strong id="gaussdb_05_0018__b1266713514332">OK</strong>.</span><p><p id="gaussdb_05_0018__p316713683017">After the parameter template applies to DB instances successfully, you can view the application records by referring to <a href="gaussdb_05_0098.html">Viewing Application Records of a Parameter Template</a>.</p>
</p></li></ol> </p></li></ol>

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<h1 class="topictitle1">Viewing Application Records of a Parameter Template</h1> <h1 class="topictitle1">Viewing Application Records of a Parameter Template</h1>
<div id="body1597738430380"><div class="section" id="gaussdb_05_0098__section732387614651"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_05_0098__p1638354818120">You can view the application records of a parameter template.</p> <div id="body1597738430380"><div class="section" id="gaussdb_05_0098__section732387614651"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_05_0098__p1638354818120">You can view the application records of a parameter template.</p>
</div> </div>
<div class="section" id="gaussdb_05_0098__section05781558132917"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_05_0098__o695f2c1c7b614765a3d9eb5e257b0bbd"><li id="gaussdb_05_0098__li19419173775012"><span>Log in to the management console.</span></li><li id="gaussdb_05_0098__li1742020376503"><span>Click <span><img id="gaussdb_05_0098__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0098__li1142083714506"><span>Click <strong id="gaussdb_05_0098__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_05_0098__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_05_0098__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_05_0098__li682712211199"><span>Choose <strong id="gaussdb_05_0098__b17105113184417">Parameter Templates</strong> in the navigation pane on the left, locate the target parameter template, and click <strong id="gaussdb_05_0098__b19399152613814">View Application Record</strong> in the <strong id="gaussdb_05_0098__b1744162173911">Operation</strong> column on the <strong id="gaussdb_05_0098__b11183124218399">Default Templates</strong> page or choose <strong id="gaussdb_05_0098__b947071717433">More</strong> &gt; <strong id="gaussdb_05_0098__b1339605412387">View Application Record</strong> on the <strong id="gaussdb_05_0098__b1139835416388">Custom Templates</strong> page.</span><p><p id="gaussdb_05_0098__p2934173415294">You can view the name or ID of the DB instance to which the parameter template applies, as well as the application status, application time, and failure cause.</p> <div class="section" id="gaussdb_05_0098__section05781558132917"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_05_0098__o695f2c1c7b614765a3d9eb5e257b0bbd"><li id="gaussdb_05_0098__li19419173775012"><span>Log in to the management console.</span></li><li id="gaussdb_05_0098__li1742020376503"><span>Click <span><img id="gaussdb_05_0098__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0098__li1142083714506"><span>Click <strong id="gaussdb_05_0098__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_05_0098__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_05_0098__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_05_0098__li682712211199"><span>Choose <strong id="gaussdb_05_0098__b17105113184417">Parameter Templates</strong> in the navigation pane on the left, locate the target parameter template, and click <strong id="gaussdb_05_0098__b19399152613814">View Application Record</strong> in the <strong id="gaussdb_05_0098__b1744162173911">Operation</strong> column on the <strong id="gaussdb_05_0098__b11183124218399">Default Templates</strong> page or choose <strong id="gaussdb_05_0098__b947071717433">More</strong> &gt; <strong id="gaussdb_05_0098__b1339605412387">View Application Record</strong> on the <strong id="gaussdb_05_0098__b1139835416388">Custom Templates</strong> page.</span><p><p id="gaussdb_05_0098__p2934173415294">You can view the name or ID of the DB instance to which the parameter template applies, as well as the application status, application time, and failure cause.</p>
</p></li></ol> </p></li></ol>
</div> </div>
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<div class="note" id="gaussdb_05_0099__note16916827192910"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_05_0099__p1068520591275">In a newly exported or created parameter template, the change history is blank.</p> <div class="note" id="gaussdb_05_0099__note16916827192910"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_05_0099__p1068520591275">In a newly exported or created parameter template, the change history is blank.</p>
</div></div> </div></div>
</div> </div>
<div class="section" id="gaussdb_05_0099__section19506644183319"><h4 class="sectiontitle">Viewing Change History of DB Instance Parameters</h4><ol id="gaussdb_05_0099__ol12467113908"><li id="gaussdb_05_0099__li19419173775012"><span>Log in to the management console.</span></li><li id="gaussdb_05_0099__li1742020376503"><span>Click <span><img id="gaussdb_05_0099__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0099__li1142083714506"><span>Click <strong id="gaussdb_05_0099__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_05_0099__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_05_0099__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_05_0099__li1487214221809"><span>On the <strong id="gaussdb_05_0099__en-us_topic_0171122799_b5318143754">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_05_0099__li197471512474"><span>In the navigation pane on the left, choose <strong id="gaussdb_05_0099__en-us_topic_0204854009_en-us_topic_0192954047_b556014720597">Parameters</strong>. On the displayed page, click <strong id="gaussdb_05_0099__en-us_topic_0204854009_en-us_topic_0192954047_b125614475597">Change History</strong>.</span><p><p id="gaussdb_05_0099__p547810162817">You can view the parameter name, original parameter value, new parameter value, modification status, modification time, application status, and application time.</p> <div class="section" id="gaussdb_05_0099__section19506644183319"><h4 class="sectiontitle">Viewing Change History of DB Instance Parameters</h4><ol id="gaussdb_05_0099__ol12467113908"><li id="gaussdb_05_0099__li19419173775012"><span>Log in to the management console.</span></li><li id="gaussdb_05_0099__li1742020376503"><span>Click <span><img id="gaussdb_05_0099__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0099__li1142083714506"><span>Click <strong id="gaussdb_05_0099__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_05_0099__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_05_0099__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_05_0099__li1487214221809"><span>On the <strong id="gaussdb_05_0099__en-us_topic_0171122799_b5318143754">Instances</strong> page, click the target DB instance.</span></li><li id="gaussdb_05_0099__li197471512474"><span>In the navigation pane on the left, choose <strong id="gaussdb_05_0099__en-us_topic_0204854009_en-us_topic_0192954047_b556014720597">Parameters</strong>. On the displayed page, click <strong id="gaussdb_05_0099__en-us_topic_0204854009_en-us_topic_0192954047_b125614475597">Change History</strong>.</span><p><p id="gaussdb_05_0099__p547810162817">You can view the parameter name, original parameter value, new parameter value, modification status, modification time, application status, and application time.</p>
<p id="gaussdb_05_0099__p973580193617">You can apply the parameter template to DB instances as required by referring to <a href="gaussdb_05_0018.html">Applying a Parameter Template</a>.</p> <p id="gaussdb_05_0099__p973580193617">You can apply the parameter template to DB instances as required by referring to <a href="gaussdb_05_0018.html">Applying a Parameter Template</a>.</p>
</p></li></ol> </p></li></ol>
</div> </div>
<div class="section" id="gaussdb_05_0099__section3949533112211"><h4 class="sectiontitle">Viewing Change History of a Parameter Template</h4><ol id="gaussdb_05_0099__ol1894983372215"><li id="gaussdb_05_0099__li1570923015518"><span>Log in to the management console.</span></li><li id="gaussdb_05_0099__li17109305551"><span>Click <span><img id="gaussdb_05_0099__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0099__li177101030155512"><span>Click <strong id="gaussdb_05_0099__gaussdb_02_0004_b4353193615913_1">Service List</strong>. Under <strong id="gaussdb_05_0099__gaussdb_02_0004_b163533362595_1">Database</strong>, click <strong id="gaussdb_05_0099__gaussdb_02_0004_b53539368593_1">GaussDB</strong>.</span></li><li id="gaussdb_05_0099__li89507337222"><span>Choose <span class="uicontrol" id="gaussdb_05_0099__uicontrol620214232918"><b>Parameter Templates</b></span> in the navigation pane on the left. On the <span class="uicontrol" id="gaussdb_05_0099__uicontrol1620252316911"><b>Custom Templates</b></span> page, click the target parameter template.</span></li><li id="gaussdb_05_0099__li4950123372214"><span>On the displayed page, choose <strong id="gaussdb_05_0099__b967318502917">Change History</strong> in the navigation pane on the left.</span><p><p id="gaussdb_05_0099__p19950433102215">You can view the parameter name, original parameter value, new parameter value, modification status, and modification time.</p> <div class="section" id="gaussdb_05_0099__section3949533112211"><h4 class="sectiontitle">Viewing Change History of a Parameter Template</h4><ol id="gaussdb_05_0099__ol1894983372215"><li id="gaussdb_05_0099__li1570923015518"><span>Log in to the management console.</span></li><li id="gaussdb_05_0099__li17109305551"><span>Click <span><img id="gaussdb_05_0099__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0099__li177101030155512"><span>Click <strong id="gaussdb_05_0099__gaussdb_02_0004_b1548312501622_1">Service List</strong>. Under <strong id="gaussdb_05_0099__gaussdb_02_0004_b1748325012210_1">Databases</strong>, click <strong id="gaussdb_05_0099__gaussdb_02_0004_b164831501625_1">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_05_0099__li89507337222"><span>Choose <span class="uicontrol" id="gaussdb_05_0099__uicontrol620214232918"><b>Parameter Templates</b></span> in the navigation pane on the left. On the <span class="uicontrol" id="gaussdb_05_0099__uicontrol1620252316911"><b>Custom Templates</b></span> page, click the target parameter template.</span></li><li id="gaussdb_05_0099__li4950123372214"><span>On the displayed page, choose <strong id="gaussdb_05_0099__b967318502917">Change History</strong> in the navigation pane on the left.</span><p><p id="gaussdb_05_0099__p19950433102215">You can view the parameter name, original parameter value, new parameter value, modification status, and modification time.</p>
</p></li></ol> </p></li></ol>
</div> </div>
</div> </div>

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<a name="gaussdb_05_0100"></a><a name="gaussdb_05_0100"></a>
<h1 class="topictitle1">Modifying Database Remarks</h1>
<div id="body0000002014205605"><div class="section" id="gaussdb_05_0100__section241540814823"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_05_0100__p4215797114827"><span class="keyword" id="gaussdb_05_0100__keyword13192194072817"><span id="gaussdb_05_0100__text5192204011285">GaussDB(for MySQL)</span></span> allows you to modify remarks of created databases.</p>
</div>
<div class="section" id="gaussdb_05_0100__section4849146111511"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_05_0100__ol36506495172844"><li id="gaussdb_05_0100__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_05_0100__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_05_0100__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_0100__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_05_0100__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_05_0100__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_05_0100__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_05_0100__li7200164951716"><span>On the <span class="uicontrol" id="gaussdb_05_0100__uicontrol1361114101213"><b>Instances</b></span> page, click the target DB instance.</span></li><li id="gaussdb_05_0100__li3716818181917"><span>In the navigation pane, choose <span class="uicontrol" id="gaussdb_05_0100__uicontrol83101018132110"><b>Databases</b></span>.</span></li><li id="gaussdb_05_0100__li39994717339"><span>Locate the target database and click <span><img id="gaussdb_05_0100__image36518582195" src="en-us_image_0000001977885398.png"></span> in the <strong id="gaussdb_05_0100__b4119172812215">Remarks</strong> column.</span><p><div class="note" id="gaussdb_05_0100__note74883432419"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="gaussdb_05_0100__p124891943644">The database remarks can be empty or contain up to 512 characters.</p>
</div></div>
</p></li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="gaussdbformysql_03_0120.html">Database Management</a></div>
</div>
</div>

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<a name="gaussdb_05_2265"></a><a name="gaussdb_05_2265"></a> <a name="gaussdb_05_2265"></a><a name="gaussdb_05_2265"></a>
<h1 class="topictitle1">Upgrading the Minor Version of a DB Instance</h1> <h1 class="topictitle1">Upgrading the Minor Version of a DB Instance</h1>
<div id="body0000001456725748"><div class="section" id="gaussdb_05_2265__section0297192412404"><h4 class="sectiontitle">Scenario</h4><p id="gaussdb_05_2265__p9356731145518"><span id="gaussdb_05_2265__text83110544387"><span id="gaussdb_05_2265__text1572101013599">GaussDB(for MySQL)</span></span> supports manual minor version upgrades, which can improve performance, add new functions, and fix bugs.</p> <div id="body0000001456725748"><div class="section" id="gaussdb_05_2265__section0297192412404"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_05_2265__p9356731145518"><span id="gaussdb_05_2265__text1572101013599">GaussDB(for MySQL)</span> supports manual minor version upgrades, which can improve performance, add new functions, and fix bugs.</p>
</div> </div>
<div class="section" id="gaussdb_05_2265__section16560101913301"><h4 class="sectiontitle">Precautions</h4><ul id="gaussdb_05_2265__ul845382217301"><li id="gaussdb_05_2265__li13453192217308">The upgrade will cause the instance to reboot and briefly interrupt services. To limit the impact of the upgrade, perform the upgrade during off-peak hours, or ensure that your applications support automatic reconnection.</li><li id="gaussdb_05_2265__li183371713154615">If an instance contains a large number of table partitions (more than 1 million), it may take more than 2 hours to reboot the instance.</li><li id="gaussdb_05_2265__li208281275913">If the primary node and read replicas of an instance are deployed in the same AZ, a minor version upgrade will trigger a failover. If they are in different AZs, a minor version upgrade will trigger two failovers. A failover means that the system fails over to a read replica in case the primary node is unavailable.</li><li id="gaussdb_05_2265__li393824419450">When you upgrade a minor version of an instance, minor versions of read replicas (if any) will also be upgraded automatically. Minor versions of read replicas cannot be upgraded separately. A minor version upgrade cannot be rolled back after the upgrade is complete.</li><li id="gaussdb_05_2265__li1136162113239">DDL operations, such as CREATE EVENT, DROP EVENT, and ALTER EVENT, are not allowed during a minor version upgrade.</li></ul> <div class="section" id="gaussdb_05_2265__section16560101913301"><h4 class="sectiontitle">Precautions</h4><ul id="gaussdb_05_2265__ul845382217301"><li id="gaussdb_05_2265__li13453192217308">The upgrade will cause the instance to reboot and briefly interrupt services. To limit the impact of the upgrade, perform the upgrade during off-peak hours, or ensure that your applications support automatic reconnection.</li><li id="gaussdb_05_2265__li183371713154615">If an instance contains a large number of table partitions (more than 1 million), it may take more than 2 hours to reboot the instance.</li><li id="gaussdb_05_2265__li208281275913">If the primary node and read replicas of an instance are deployed in the same AZ, a minor version upgrade will trigger a failover. If they are in different AZs, a minor version upgrade will trigger two failovers. A failover means that the system fails over to a read replica in case the primary node is unavailable.</li><li id="gaussdb_05_2265__li393824419450">When you upgrade a minor version of an instance, minor versions of read replicas (if any) will also be upgraded automatically. Minor versions of read replicas cannot be upgraded separately. A minor version upgrade cannot be rolled back after the upgrade is complete.</li><li id="gaussdb_05_2265__li1136162113239">DDL operations, such as CREATE EVENT, DROP EVENT, and ALTER EVENT, are not allowed during a minor version upgrade.</li></ul>
</div> </div>
<div class="section" id="gaussdb_05_2265__section2057112994214"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_05_2265__ol6724161419271"><li id="gaussdb_05_2265__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_05_2265__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_05_2265__en-us_topic_0179843894_image192529212293" src="en-us_image_0218527002.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_2265__li181542917431"><span>Click <span><img id="gaussdb_05_2265__image96758393138" src="en-us_image_0000001480810240.png"></span> in the upper left corner of the page and choose <strong id="gaussdb_05_2265__b141161024188">Database</strong> &gt; <strong id="gaussdb_05_2265__b1511615247819">GaussDB</strong>. In the navigation pane on the left, click <strong id="gaussdb_05_2265__b12941143114815"><span id="gaussdb_05_2265__text569617218446">GaussDB(for MySQL)</span></strong>.</span></li><li id="gaussdb_05_2265__li61161897172844"><span>On the <strong id="gaussdb_05_2265__b136211223154117">Instances</strong> page, click the instance name to go to the <strong id="gaussdb_05_2265__b1662113233411">Basic Information</strong> page.</span></li><li id="gaussdb_05_2265__li34958503397"><span>In the <span class="uicontrol" id="gaussdb_05_2265__uicontrol14836226104111"><b>DB Instance Information</b></span> area, click <strong id="gaussdb_05_2265__b198365265415">Upgrade</strong> in the <strong id="gaussdb_05_2265__b1283782674117">DB Engine Version</strong> field.</span></li><li id="gaussdb_05_2265__li36398892172958"><span>In the displayed dialog box, select a scheduled time and click <strong id="gaussdb_05_2265__b2991103064114">OK</strong>.</span><p><p id="gaussdb_05_2265__p16445141355211">Upon submission: The system upgrades the minor version immediately after your submission of the upgrade request. After the operation is complete, in the <strong id="gaussdb_05_2265__b19463113734119">Task Center</strong> page, click <strong id="gaussdb_05_2265__b74631137154112">Instant Tasks</strong> and view the information about the upgrade task.</p> <div class="section" id="gaussdb_05_2265__section2057112994214"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_05_2265__ol6724161419271"><li id="gaussdb_05_2265__en-us_topic_0171122646_lbbb80ba312054cfca3a8b1e4c3d016fa"><span>Log in to the management console.</span></li><li id="gaussdb_05_2265__en-us_topic_0171122646_l541898ae0beb476b8d4ba4e68723bbe9"><span>Click <span><img id="gaussdb_05_2265__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_05_2265__en-us_topic_0171122646_li16913104111"><span>Click <strong id="gaussdb_05_2265__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_05_2265__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_05_2265__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_05_2265__li61161897172844"><span>On the <strong id="gaussdb_05_2265__b1515555142215">Instances</strong> page, click the target instance to go to the <strong id="gaussdb_05_2265__b31558510226">Basic Information</strong> page.</span></li><li id="gaussdb_05_2265__li34958503397"><span>In the <span class="uicontrol" id="gaussdb_05_2265__uicontrol14836226104111"><b>DB Instance Information</b></span> area, click <strong id="gaussdb_05_2265__b198365265415">Upgrade</strong> in the <strong id="gaussdb_05_2265__b1283782674117">DB Engine Version</strong> field.</span></li><li id="gaussdb_05_2265__li36398892172958"><span>In the displayed dialog box, select a scheduled time and click <strong id="gaussdb_05_2265__b2991103064114">OK</strong>.</span><p><p id="gaussdb_05_2265__p16445141355211">Upon submission: The system upgrades the minor version immediately after your submission of the upgrade request. After the operation is complete, in the <strong id="gaussdb_05_2265__b19463113734119">Task Center</strong> page, click <strong id="gaussdb_05_2265__b74631137154112">Instant Tasks</strong> and view the information about the upgrade task.</p>
</p></li></ol> </p></li></ol>
</div> </div>
</div> </div>

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<h1 class="topictitle1">Changing a Security Group</h1> <h1 class="topictitle1">Changing a Security Group</h1>
<div id="body1603089650987"><div class="section" id="gaussdb_08_0003__section36712096194014"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_08_0003__p27667840173352">You can change the security group of a DB instance.</p> <div id="body1603089650987"><div class="section" id="gaussdb_08_0003__section36712096194014"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_08_0003__p27667840173352">You can change the security group of a DB instance.</p>
</div> </div>
<div class="section" id="gaussdb_08_0003__section59386647165940"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_08_0003__o3a2715f18c35409aa98d1b471dc7b5d3"><li id="gaussdb_08_0003__li11111185020914"><span>Log in to the management console.</span></li><li id="gaussdb_08_0003__li1511135012918"><span>Click <span><img id="gaussdb_08_0003__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_08_0003__li17111250492"><span>Click <strong id="gaussdb_08_0003__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_08_0003__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_08_0003__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_08_0003__le65a8798b3894fa9b8b778a700ad84b8"><span>On the <strong id="gaussdb_08_0003__b10845155610482">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_08_0003__b198048138524">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_08_0003__l2a5b3371b82b4bf0b87371149b3ffc1a"><span>In the <strong id="gaussdb_08_0003__b578611010490">Network Information</strong> area, click <span><img id="gaussdb_08_0003__image1152523014510" src="en-us_image_0000001403138685.png"></span> in the <span class="uicontrol" id="gaussdb_08_0003__uicontrol1678717034916"><b>Security Group</b></span> field.</span><p><ul id="gaussdb_08_0003__u81810f00684d4603bde1b8196fff8ce4"><li id="gaussdb_08_0003__l8d1751fed23547178877ffc06abf2a1e">To submit the change, click <span><img id="gaussdb_08_0003__en-us_topic_0171122553_image17386173042011" src="en-us_image_0000001403138681.png"></span>.</li><li id="gaussdb_08_0003__li62993547195615">To cancel the change, click <span><img id="gaussdb_08_0003__image13343486492" src="en-us_image_0000001403218681.png"></span>.</li></ul> <div class="section" id="gaussdb_08_0003__section59386647165940"><h4 class="sectiontitle">Procedure</h4><ol id="gaussdb_08_0003__o3a2715f18c35409aa98d1b471dc7b5d3"><li id="gaussdb_08_0003__li11111185020914"><span>Log in to the management console.</span></li><li id="gaussdb_08_0003__li1511135012918"><span>Click <span><img id="gaussdb_08_0003__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_08_0003__li17111250492"><span>Click <strong id="gaussdb_08_0003__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_08_0003__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_08_0003__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_08_0003__le65a8798b3894fa9b8b778a700ad84b8"><span>On the <strong id="gaussdb_08_0003__b10845155610482">Instances</strong> page, click the target DB instance. The <strong id="gaussdb_08_0003__b198048138524">Basic Information</strong> page is displayed.</span></li><li id="gaussdb_08_0003__l2a5b3371b82b4bf0b87371149b3ffc1a"><span>In the <strong id="gaussdb_08_0003__b578611010490">Network Information</strong> area, click <span><img id="gaussdb_08_0003__image1152523014510" src="en-us_image_0000001403138685.png"></span> in the <span class="uicontrol" id="gaussdb_08_0003__uicontrol1678717034916"><b>Security Group</b></span> field.</span><p><ul id="gaussdb_08_0003__u81810f00684d4603bde1b8196fff8ce4"><li id="gaussdb_08_0003__l8d1751fed23547178877ffc06abf2a1e">To submit the change, click <span><img id="gaussdb_08_0003__en-us_topic_0171122553_image17386173042011" src="en-us_image_0000001403138681.png"></span>.</li><li id="gaussdb_08_0003__li62993547195615">To cancel the change, click <span><img id="gaussdb_08_0003__image13343486492" src="en-us_image_0000001403218681.png"></span>.</li></ul>
</p></li><li id="gaussdb_08_0003__lde4afc21cfca4e758513b927fd3eb6bb"><span>Click <span><img id="gaussdb_08_0003__image162678266013830" src="en-us_image_0000001402979141.png"></span> in the upper right corner on the <span class="uicontrol" id="gaussdb_08_0003__uicontrol97835057310161"><b>Basic Information</b></span> page to view the result of the change. This process takes about 1 to 3 minutes.</span></li></ol> </p></li><li id="gaussdb_08_0003__lde4afc21cfca4e758513b927fd3eb6bb"><span>Click <span><img id="gaussdb_08_0003__image162678266013830" src="en-us_image_0000001402979141.png"></span> in the upper right corner on the <span class="uicontrol" id="gaussdb_08_0003__uicontrol97835057310161"><b>Basic Information</b></span> page to view the result of the change. This process takes about 1 to 3 minutes.</span></li></ol>
</div> </div>
</div> </div>

4
docs/gaussdb_mysql/umn/gaussdb_08_0012.html
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<div id="body1597738427615"><div class="section" id="gaussdb_08_0012__section3320139914619"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_08_0012__p3816237191312">You can compare DB instance parameters with a parameter template that uses the same DB engine to inspect the differences of parameter settings.</p> <div id="body1597738427615"><div class="section" id="gaussdb_08_0012__section3320139914619"><h4 class="sectiontitle">Scenarios</h4><p id="gaussdb_08_0012__p3816237191312">You can compare DB instance parameters with a parameter template that uses the same DB engine to inspect the differences of parameter settings.</p>
<p id="gaussdb_08_0012__p1500242318419">You can also compare default parameter templates that use the same DB engine to inspect the differences of parameter settings.</p> <p id="gaussdb_08_0012__p1500242318419">You can also compare default parameter templates that use the same DB engine to inspect the differences of parameter settings.</p>
</div> </div>
<div class="section" id="gaussdb_08_0012__section14597653142310"><h4 class="sectiontitle">Comparing Instance Parameters with a Parameter Template</h4><ol id="gaussdb_08_0012__ol06491612202412"><li id="gaussdb_08_0012__li612172720122"><span>Log in to the management console.</span></li><li id="gaussdb_08_0012__li1712327181216"><span>Click <span><img id="gaussdb_08_0012__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_08_0012__li712102751213"><span>Click <strong id="gaussdb_08_0012__gaussdb_02_0004_b4353193615913">Service List</strong>. Under <strong id="gaussdb_08_0012__gaussdb_02_0004_b163533362595">Database</strong>, click <strong id="gaussdb_08_0012__gaussdb_02_0004_b53539368593">GaussDB</strong>.</span></li><li id="gaussdb_08_0012__li0452183819206"><span>On the <span class="uicontrol" id="gaussdb_08_0012__uicontrol165141826135718"><b>Instances</b></span> page, click the target DB instance.</span></li><li id="gaussdb_08_0012__li19417453113013"><span>In the navigation pane on the left, choose <strong id="gaussdb_08_0012__en-us_topic_0204854008_en-us_topic_0192954286_b1816322810225">Parameters</strong>. On the displayed page, click <span class="uicontrol" id="gaussdb_08_0012__en-us_topic_0204854008_en-us_topic_0192954286_uicontrol116522842217"><b><span class="keyword" id="gaussdb_08_0012__keyword01642028112218">Compare</span></b></span> above the parameter list.</span></li><li id="gaussdb_08_0012__li2417165319308"><span>In the displayed dialog box, select a parameter template to be compared and click <strong id="gaussdb_08_0012__b1385152072318">OK</strong>.</span><p><ul id="gaussdb_08_0012__ul146887170435"><li id="gaussdb_08_0012__li568841712430">If their settings are different, the parameter names and values of both parameter templates are displayed.</li><li id="gaussdb_08_0012__li5688121734317">If the settings are the same, no data is displayed.</li></ul> <div class="section" id="gaussdb_08_0012__section14597653142310"><h4 class="sectiontitle">Comparing Instance Parameters with a Parameter Template</h4><ol id="gaussdb_08_0012__ol06491612202412"><li id="gaussdb_08_0012__li612172720122"><span>Log in to the management console.</span></li><li id="gaussdb_08_0012__li1712327181216"><span>Click <span><img id="gaussdb_08_0012__gaussdb_02_0004_image192529212293" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_08_0012__li712102751213"><span>Click <strong id="gaussdb_08_0012__gaussdb_02_0004_b1548312501622">Service List</strong>. Under <strong id="gaussdb_08_0012__gaussdb_02_0004_b1748325012210">Databases</strong>, click <strong id="gaussdb_08_0012__gaussdb_02_0004_b164831501625">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_08_0012__li0452183819206"><span>On the <span class="uicontrol" id="gaussdb_08_0012__uicontrol165141826135718"><b>Instances</b></span> page, click the target DB instance.</span></li><li id="gaussdb_08_0012__li19417453113013"><span>In the navigation pane on the left, choose <strong id="gaussdb_08_0012__en-us_topic_0204854008_en-us_topic_0192954286_b1816322810225">Parameters</strong>. On the displayed page, click <span class="uicontrol" id="gaussdb_08_0012__en-us_topic_0204854008_en-us_topic_0192954286_uicontrol116522842217"><b><span class="keyword" id="gaussdb_08_0012__keyword01642028112218">Compare</span></b></span> above the parameter list.</span></li><li id="gaussdb_08_0012__li2417165319308"><span>In the displayed dialog box, select a parameter template to be compared and click <strong id="gaussdb_08_0012__b1385152072318">OK</strong>.</span><p><ul id="gaussdb_08_0012__ul146887170435"><li id="gaussdb_08_0012__li568841712430">If their settings are different, the parameter names and values of both parameter templates are displayed.</li><li id="gaussdb_08_0012__li5688121734317">If the settings are the same, no data is displayed.</li></ul>
</p></li></ol> </p></li></ol>
</div> </div>
<div class="section" id="gaussdb_08_0012__s0b4257cd13504b4e9af5cd8af578de78"><h4 class="sectiontitle">Comparing Parameter Templates</h4><ol id="gaussdb_08_0012__o8304dc8551d9425cbb647beab5562438"><li id="gaussdb_08_0012__li19419173775012"><span>Log in to the management console.</span></li><li id="gaussdb_08_0012__li1742020376503"><span>Click <span><img id="gaussdb_08_0012__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_08_0012__li1142083714506"><span>Click <strong id="gaussdb_08_0012__gaussdb_02_0004_b4353193615913_1">Service List</strong>. Under <strong id="gaussdb_08_0012__gaussdb_02_0004_b163533362595_1">Database</strong>, click <strong id="gaussdb_08_0012__gaussdb_02_0004_b53539368593_1">GaussDB</strong>.</span></li><li id="gaussdb_08_0012__li1422619852217"><span>On the <strong id="gaussdb_08_0012__b838412715586">Parameter Templates </strong>page, click <strong id="gaussdb_08_0012__b143851671589">Custom Templates</strong>. Locate the target parameter template and click <strong id="gaussdb_08_0012__b113851273585">Compare</strong> in the <strong id="gaussdb_08_0012__b1038667145820">Operation</strong> column.</span></li><li id="gaussdb_08_0012__la09cd2b51b194b27b24e6c2155a34c0d"><span>In the displayed dialog box, select a parameter template that uses the same DB engine as the target template and click <strong id="gaussdb_08_0012__b139251413175817">OK</strong>.</span><p><ul id="gaussdb_08_0012__ul573019558504"><li id="gaussdb_08_0012__li773035511508">If their settings are different, the parameter names and values of both parameter templates are displayed.</li><li id="gaussdb_08_0012__li1671418015512">If their settings are the same, no data is displayed.</li></ul> <div class="section" id="gaussdb_08_0012__s0b4257cd13504b4e9af5cd8af578de78"><h4 class="sectiontitle">Comparing Parameter Templates</h4><ol id="gaussdb_08_0012__o8304dc8551d9425cbb647beab5562438"><li id="gaussdb_08_0012__li19419173775012"><span>Log in to the management console.</span></li><li id="gaussdb_08_0012__li1742020376503"><span>Click <span><img id="gaussdb_08_0012__gaussdb_02_0004_image192529212293_1" src="en-us_image_0000001352219100.png"></span> in the upper left corner and select a region and a project.</span></li><li id="gaussdb_08_0012__li1142083714506"><span>Click <strong id="gaussdb_08_0012__gaussdb_02_0004_b1548312501622_1">Service List</strong>. Under <strong id="gaussdb_08_0012__gaussdb_02_0004_b1748325012210_1">Databases</strong>, click <strong id="gaussdb_08_0012__gaussdb_02_0004_b164831501625_1">GaussDB(for MySQL)</strong>.</span></li><li id="gaussdb_08_0012__li1422619852217"><span>On the <strong id="gaussdb_08_0012__b838412715586">Parameter Templates </strong>page, click <strong id="gaussdb_08_0012__b143851671589">Custom Templates</strong>. Locate the target parameter template and click <strong id="gaussdb_08_0012__b113851273585">Compare</strong> in the <strong id="gaussdb_08_0012__b1038667145820">Operation</strong> column.</span></li><li id="gaussdb_08_0012__la09cd2b51b194b27b24e6c2155a34c0d"><span>In the displayed dialog box, select a parameter template that uses the same DB engine as the target template and click <strong id="gaussdb_08_0012__b139251413175817">OK</strong>.</span><p><ul id="gaussdb_08_0012__ul573019558504"><li id="gaussdb_08_0012__li773035511508">If their settings are different, the parameter names and values of both parameter templates are displayed.</li><li id="gaussdb_08_0012__li1671418015512">If their settings are the same, no data is displayed.</li></ul>
</p></li></ol> </p></li></ol>
</div> </div>
</div> </div>

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