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<h1 class="topictitle1">Creating an Elasticsearch Cluster in Non-Security Mode</h1>
<div id="body0000001334742261"><p id="css_01_0094__p1650716241016">This section describes how to create an Elasticsearch cluster in non-security mode.</p>
<div class="section" id="css_01_0094__section32701230131812"><h4 class="sectiontitle">Context</h4><ul id="css_01_0094__en-us_topic_0000001268594549_ul139814102616"><li id="css_01_0094__en-us_topic_0000001268594549_li125972401019">When creating a cluster, the number of nodes that can be added varies according to the node type. For details, see <a href="#css_01_0094__en-us_topic_0000001268594549_table10730243193816">Table 1</a>.
<div class="tablenoborder"><a name="css_01_0094__en-us_topic_0000001268594549_table10730243193816"></a><a name="en-us_topic_0000001268594549_table10730243193816"></a><table cellpadding="4" cellspacing="0" summary="" id="css_01_0094__en-us_topic_0000001268594549_table10730243193816" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Number of nodes in different types</caption><thead align="left"><tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row1976920435387"><th align="left" class="cellrowborder" valign="top" width="50.529999999999994%" id="mcps1.3.2.2.1.2.2.3.1.1"><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1976954343811">Node Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="49.47%" id="mcps1.3.2.2.1.2.2.3.1.2"><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1276920435389">Number</p>
</th>
</tr>
</thead>
<tbody><tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row1769164393820"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.2.2.1.2.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p18769184333816">ess</p>
</td>
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.2.2.1.2.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p127691243123819">ess: 1-32</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row177691843183816"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.2.2.1.2.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p776964317385">ess, ess-master</p>
</td>
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.2.2.1.2.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p9769194317381">ess: 1-200</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1976911438384">ess-master: an odd number ranging from 3 to 9</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row107691743183814"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.2.2.1.2.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1769443133816">ess, ess-client</p>
</td>
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.2.2.1.2.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p157691943163815">ess: 1-32</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1976917431383">ess-client: 1-32</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row57692432388"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.2.2.1.2.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p18769343203813">ess, ess-cold</p>
</td>
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.2.2.1.2.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p12769194317384">ess: 1-32</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1138220591537">ess-cold: 1-32</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row187701743193815"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.2.2.1.2.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1477054314389">ess, ess-master, ess-client</p>
</td>
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.2.2.1.2.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p2770164303816">ess: 1-200</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p877020432386">ess-master: an odd number ranging from 3 to 9</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p177044313389">ess-client: 1-32</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row27701443143811"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.2.2.1.2.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p2770443173816">ess, ess-master, ess-cold</p>
</td>
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.2.2.1.2.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1777074316382">ess: 1-200</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p5770124393818">ess-master: an odd number ranging from 3 to 9</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p161801250733">ess-cold: 1-32</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row67708433382"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.2.2.1.2.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p777018438384">ess, ess-client, ess-cold</p>
</td>
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.2.2.1.2.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p077074353816">ess: 1-32</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p12770194393813">ess-client: 1-32</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1841425314">ess-cold: 1-32</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row7770143153811"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.2.2.1.2.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p577044333818">ess, ess-master, ess-client, ess-cold</p>
</td>
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.2.2.1.2.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1777017437384">ess: 1-200</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p077034315388">ess-master: an odd number ranging from 3 to 9</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p5770144314386">ess-client: 1-32</p>
<p id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p1278719254314">ess-cold: 1-32</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_row14267396512"><td class="cellrowborder" colspan="2" valign="top" headers="mcps1.3.2.2.1.2.2.3.1.1 mcps1.3.2.2.1.2.2.3.1.2 "><div class="p" id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_p3497523687">Details about the four node types:<ul id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_ul12497123683"><li id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_li64981323284"><strong id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_b1543078192814">ess</strong>: the default node type that is mandatory for cluster creation. The other three node types are optional.</li><li id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_li6498112311818"><strong id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_b14242174542716">ess-master</strong>: master node</li><li id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_li114982231584"><strong id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_b051753122720">ess-client</strong>: client node</li><li id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_li64984238813"><strong id="css_01_0094__en-us_topic_0000001268594549_en-us_topic_0000001285669680_b151201057162715">ess-cold</strong>: cold data node</li></ul>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</li></ul>
</div>
<div class="section" id="css_01_0094__section781857123412"><h4 class="sectiontitle">Procedure</h4><ol id="css_01_0094__ol175241191249"><li id="css_01_0094__li5509181942419">Log in to the <span id="css_01_0094__text115093190244">CSS</span> management console.</li><li id="css_01_0094__li18509111942412">Click <span class="uicontrol" id="css_01_0094__uicontrol6124933104116"><b><span id="css_01_0094__text81242338414">Create Cluster</span></b></span> in the upper right corner. The <strong id="css_01_0094__b1212493324113">Create Cluster</strong> page is displayed.</li><li id="css_01_0094__li1550911962418">Specify <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname1292954818545"><b><span id="css_01_0094__en-us_topic_0000001338955753_text1338749412">Region</span></b></span> and <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname103351151175411"><b>AZ</b></span>.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="css_01_0094__en-us_topic_0000001338955753_table123919163912" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameter description for Region and AZ</caption><thead align="left"><tr id="css_01_0094__en-us_topic_0000001338955753_row6240191618912"><th align="left" class="cellrowborder" valign="top" width="35.28%" id="mcps1.3.3.2.3.3.2.3.1.1"><p id="css_01_0094__en-us_topic_0000001338955753_p6240101619913">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="64.72%" id="mcps1.3.3.2.3.3.2.3.1.2"><p id="css_01_0094__en-us_topic_0000001338955753_p1324019161897">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="css_01_0094__en-us_topic_0000001338955753_row1324031620914"><td class="cellrowborder" valign="top" width="35.28%" headers="mcps1.3.3.2.3.3.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p82406161916">Region</p>
</td>
<td class="cellrowborder" valign="top" width="64.72%" headers="mcps1.3.3.2.3.3.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p1371716288100">Select a region for the cluster from the drop-down list on the right. Currently, only <strong id="css_01_0094__en-us_topic_0000001338955753_b1568815101902">eu-de</strong> is supported.</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row112401161695"><td class="cellrowborder" valign="top" width="35.28%" headers="mcps1.3.3.2.3.3.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p142401416791">AZ</p>
</td>
<td class="cellrowborder" valign="top" width="64.72%" headers="mcps1.3.3.2.3.3.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p132401616890">Select an AZ associated with the cluster region.</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p869080899">You can select one or more AZs. For details, see <a href="css_04_0023.html">Multi-AZ HA</a>.</p>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="css_01_0094__li11509319152412">Set basic information about the cluster. Specifically, specify <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname145095197241"><b>Version</b></span> and <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname9509141913242"><b>Name</b></span>.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="css_01_0094__en-us_topic_0000001338955753_table1514341616111" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Description of basic parameters</caption><thead align="left"><tr id="css_01_0094__en-us_topic_0000001338955753_row10143191614119"><th align="left" class="cellrowborder" valign="top" width="23.48%" id="mcps1.3.3.2.4.3.2.3.1.1"><p id="css_01_0094__en-us_topic_0000001338955753_p181437168110">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="76.52%" id="mcps1.3.3.2.4.3.2.3.1.2"><p id="css_01_0094__en-us_topic_0000001338955753_p171431816161119">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="css_01_0094__en-us_topic_0000001338955753_row714311614114"><td class="cellrowborder" valign="top" width="23.48%" headers="mcps1.3.3.2.4.3.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p181127310148">Version</p>
</td>
<td class="cellrowborder" valign="top" width="76.52%" headers="mcps1.3.3.2.4.3.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p101431316141111">Select a cluster version from the drop-down list box.</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row31431616181112"><td class="cellrowborder" valign="top" width="23.48%" headers="mcps1.3.3.2.4.3.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p13143516151111">Name</p>
</td>
<td class="cellrowborder" valign="top" width="76.52%" headers="mcps1.3.3.2.4.3.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p914318165115">Name of a cluster. Cluster names contain 4 to 32 characters. Only letters, numbers, hyphens (-), and underscores (_) are allowed and the value must start with a letter.</p>
<div class="note" id="css_01_0094__en-us_topic_0000001338955753_note1364615174019"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="css_01_0094__en-us_topic_0000001338955753_p146469104015">After a cluster is created, you can modify the cluster name as required. Click the name of a cluster to be modified. On the displayed <strong id="css_01_0094__en-us_topic_0000001338955753_b1750235116535">Basic Information</strong> page, click <span><img id="css_01_0094__en-us_topic_0000001338955753_image153610329132" src="en-us_image_0000001503657744.png"></span> next to the cluster name. After the modification is completed, click <span><img id="css_01_0094__en-us_topic_0000001338955753_image8415159114217" src="en-us_image_0000001503657748.png"></span> to save the modification. If you want to cancel the modification, click <span><img id="css_01_0094__en-us_topic_0000001338955753_image1473403711423" src="en-us_image_0000001554577401.png"></span>.</p>
</div></div>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="css_01_0094__li952461910242">Set host specifications of the cluster.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="css_01_0094__en-us_topic_0000001338955753_table950951922414" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Parameter description</caption><thead align="left"><tr id="css_01_0094__en-us_topic_0000001338955753_row14509181918241"><th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.3.2.5.1.2.3.1.1"><p id="css_01_0094__en-us_topic_0000001338955753_p150917199243">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="75%" id="mcps1.3.3.2.5.1.2.3.1.2"><p id="css_01_0094__en-us_topic_0000001338955753_p1350941916247">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="css_01_0094__en-us_topic_0000001338955753_row15509111982410"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p1350910198248">Nodes</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p2050931982412">Number of nodes in a cluster.</p>
<ul id="css_01_0094__en-us_topic_0000001338955753_ul55091419152414"><li id="css_01_0094__en-us_topic_0000001338955753_li4509131932411">If neither a master node nor client node is enabled, the nodes specified by this parameter are used to serve as both the master node and client node. Nodes provide the cluster management, data storage, cluster access, and data analysis functions. To ensure data stability in the cluster, it is recommended that you set this parameter to a value no less than 3.</li><li id="css_01_0094__en-us_topic_0000001338955753_li14509131932414">If only the master node function is enabled, nodes specified by this parameter are used to store data and provide functions of client nodes.</li><li id="css_01_0094__en-us_topic_0000001338955753_li115091019152410">If both the master and client node functions are enabled, the nodes specified by this parameter are only used for storing data.</li><li id="css_01_0094__en-us_topic_0000001338955753_li250444014568">If only the client node function is enabled, nodes specified by this parameter are used to store data and provide functions of the master node.</li></ul>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row1150871017413"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p144593569203">CPU Architecture</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p645915617201">Currently, <strong id="css_01_0094__en-us_topic_0000001338955753_b2391114781012">x86</strong> and <strong id="css_01_0094__en-us_topic_0000001338955753_b11391164710101">Kunpeng</strong> are supported. The supported type is determined by the actual regional environment.</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row65090196243"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p1250951902416">Node Specifications</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p10858170124020">Specifications of nodes in a cluster. You can select a specified specification based on your needs. Only one node specification can be selected for each cluster. You cannot select the CPU and memory resources that have been sold out.</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p1550931910245">Currently, the following flavors are supported: <strong id="css_01_0094__en-us_topic_0000001338955753_b136116591151948">css.medium.8</strong>, <strong id="css_01_0094__en-us_topic_0000001338955753_b205129362451948">css.large.8</strong>, <strong id="css_01_0094__en-us_topic_0000001338955753_b148686427851948">css.xlarge.8</strong>, <strong id="css_01_0094__en-us_topic_0000001338955753_b163390492951948">css.2xlarge.8</strong>, and <strong id="css_01_0094__en-us_topic_0000001338955753_b103052911651948">css.4xlarge.8</strong>.</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p1550911912412">After you select a flavor, the CPU and memory corresponding to the current specification are displayed below the parameter. For example, if you select <strong id="css_01_0094__en-us_topic_0000001338955753_b6155343251948">css.medium.8</strong>, then <strong id="css_01_0094__en-us_topic_0000001338955753_b67868396151948">1 vCPUs | 8 GB</strong> will be displayed, indicating that the node flavor you select contains one vCPU and 8 GB memory.</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row175091919122413"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p650921919248">Node Storage Type</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p650911918249">In the current version, the following options are available: <strong id="css_01_0094__en-us_topic_0000001338955753_b28211641156">Common I/O</strong>, <strong id="css_01_0094__en-us_topic_0000001338955753_b13880344954">High I/O</strong>, and <strong id="css_01_0094__en-us_topic_0000001338955753_b68612481958">Ultra-high I/O</strong>.</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row250912197249"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p1950921962418">Node Storage Capacity</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p16509181952416">Storage space. Its value varies with node specifications.</p>
<ul id="css_01_0094__en-us_topic_0000001338955753_ul189461316669"><li id="css_01_0094__en-us_topic_0000001338955753_li89471816561">Value range of flavor <strong id="css_01_0094__en-us_topic_0000001338955753_b1848992610451">css.medium.8</strong>: 40 GB to 640 GB</li><li id="css_01_0094__en-us_topic_0000001338955753_li6947121612612">Value range of flavor <strong id="css_01_0094__en-us_topic_0000001338955753_b1851033122314">css.large.8</strong>: 40 GB to 1,280 GB</li><li id="css_01_0094__en-us_topic_0000001338955753_li1094719161862">Value range of flavor <strong id="css_01_0094__en-us_topic_0000001338955753_b91201547112313">css.xlarge.8</strong>: 40 GB to 2,560 GB</li><li id="css_01_0094__en-us_topic_0000001338955753_li59473161266">Value range of flavor <strong id="css_01_0094__en-us_topic_0000001338955753_b279692713247">css.2xlarge.8</strong>: 80 GB to 5,120 GB</li><li id="css_01_0094__en-us_topic_0000001338955753_li994713161619">Value range of flavor <strong id="css_01_0094__en-us_topic_0000001338955753_b142962316246">css.4xlarge.8</strong>: 160 GB to 10,240 GB</li></ul>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row6127934194011"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p1470610457401">Disk Encryption</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p17127834194017">If you select this option, the nodes in the cluster you create will use encrypted EVS disks to protect data. By default, this option is not selected. Note that you cannot modify this setting after the cluster is created. Therefore, exercise caution when performing the setting.</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p0239911125713">After you select this option, you need to select an available key from the <strong id="css_01_0094__en-us_topic_0000001338955753_b11607121916479">Key Name</strong> drop-down list. If no key is available, click <span class="uicontrol" id="css_01_0094__en-us_topic_0000001338955753_uicontrol1932561718598"><b>Create/View Key</b></span> to go to the KMS management console and create or modify a key. For details, see <a href="https://docs.otc.t-systems.com/en-us/usermanual/kms/en-us_topic_0034330265.html" target="_blank" rel="noopener noreferrer">Creating a CMK</a>.</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p2062119166388">Enabling disk encryption has no impact on your operations on a cluster (such as accessing the cluster and importing data to the cluster). However, after you enable disk encryption, operation performance deteriorates by about 10%.</p>
<div class="note" id="css_01_0094__en-us_topic_0000001338955753_note134725562016"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="css_01_0094__en-us_topic_0000001338955753_ul67444552406"><li id="css_01_0094__en-us_topic_0000001338955753_li1758173020115">If the cluster is in the <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname161707750151948"><b>Available</b></span> status and the key used for disk encryption is in the <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname172235858251948"><b>Pending deletion</b></span> or <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname213364863051948"><b>disable</b></span> status or has been deleted after a cluster is created, cluster scale-out is not allowed. However, other operations on the cluster, such as restarting the cluster, creating snapshots, restoring the cluster, and importing data to the cluster are not affected. In addition, this key cannot be used for cluster creation in the future.</li><li id="css_01_0094__en-us_topic_0000001338955753_li1774435534011">After a cluster is created, do not delete the key used by the cluster. Otherwise, the cluster will become unavailable.</li><li id="css_01_0094__en-us_topic_0000001338955753_li1325105810406">The Default Master Keys cannot be used to create grants. Specifically, you cannot use Default Master Keys whose aliases end with <span class="parmvalue" id="css_01_0094__en-us_topic_0000001338955753_parmvalue12881641114711"><b>/default</b></span> in KMS to create clusters.</li></ul>
</div></div>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row155091119132418"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p125096195242">Master node</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p10509719182412">The master node manages all nodes in the cluster. If 20 or more nodes are required to store and analyze the large amount of data, you are advised to enable the master node to ensure cluster stability. Otherwise, you are advised to set only the <strong id="css_01_0094__en-us_topic_0000001338955753_b19437118202316">Nodes</strong> parameter and use the nodes as both master and client nodes..</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p1750971913243">After enabling the master node, specify <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname56987843851948"><b>Node Specifications</b></span>, <strong id="css_01_0094__en-us_topic_0000001338955753_b16744555251948">Nodes</strong>, and <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname124492124851948"><b>Node Storage Type</b></span>. The value of <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname850494619346"><b>Nodes</b></span> must be an odd number equal to or greater than 3. You can set a maximum of nine nodes. The value of <strong id="css_01_0094__en-us_topic_0000001338955753_b2041159122417">Node Storage Capacity</strong> is fixed. You can select a storage type based on your needs. By default, the node storage type is <strong id="css_01_0094__en-us_topic_0000001338955753_b896483512344">High I/O</strong> and the node storage capacity is <strong id="css_01_0094__en-us_topic_0000001338955753_b1547114053415">40 GB</strong>.</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row18509171911243"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p1450911198249">Client node</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p1550911198241">The client node allows clients to access clusters and analyze data. If more than 20 nodes are required to store and analyze a large amount of data, you are advised to enable the client node to ensure cluster stability. Otherwise, you are advised to set only the <strong id="css_01_0094__en-us_topic_0000001338955753_b11543645202513">Nodes</strong> parameter and use the nodes as both master and client nodes..</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p6509121992415">After enabling the client node, specify <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname131691743122416"><b>Node Specifications</b></span>, <strong id="css_01_0094__en-us_topic_0000001338955753_b9169143162417">Nodes</strong> and <span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname517074311246"><b>Node Storage Type</b></span>. The value of <strong id="css_01_0094__en-us_topic_0000001338955753_b10704315156">Nodes</strong> ranges from 1 to 32. The value of <strong id="css_01_0094__en-us_topic_0000001338955753_b206915162511">Node Storage Capacity</strong> is fixed. You can select a storage type based on your needs. By default, the node storage type is High I/O and the node storage capacity is 40 GB.</p>
</td>
</tr>
<tr id="css_01_0094__en-us_topic_0000001338955753_row12889131219416"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.3.2.5.1.2.3.1.1 "><p id="css_01_0094__en-us_topic_0000001338955753_p1389081294118">Cold data node</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.3.2.5.1.2.3.1.2 "><p id="css_01_0094__en-us_topic_0000001338955753_p18902012184113">The cold data node is used to store historical data, for which query responses can be returned in minutes. If you do not quire a quick query response, store historical data on cold data nodes to reduce costs.</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p57631824383">After enabling cold data node, configure <strong id="css_01_0094__en-us_topic_0000001338955753_b417819297337">Node Specifications</strong>, <strong id="css_01_0094__en-us_topic_0000001338955753_b3887183413311">Nodes</strong>, <strong id="css_01_0094__en-us_topic_0000001338955753_b144371948173310">Node Storage Type</strong>, and <strong id="css_01_0094__en-us_topic_0000001338955753_b1131432183414">Node Storage Capacity</strong>. The value of <strong id="css_01_0094__en-us_topic_0000001338955753_b142835162917">Nodes</strong> ranges from 1 to 32. Select <strong id="css_01_0094__en-us_topic_0000001338955753_b2011532119323">Node Storage Type</strong> and <strong id="css_01_0094__en-us_topic_0000001338955753_b18774114123219">Node Storage Capacity</strong> as requirement.</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p1024710511283">After the cold data node is enabled, CSS automatically adds cold and hot tags to related nodes.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="fignone" id="css_01_0094__en-us_topic_0000001338955753_fig6524919122413"><span class="figcap"><b>Figure 1 </b>Configuring node specifications</span><br><span><img id="css_01_0094__en-us_topic_0000001338955753_image88114464472" src="en-us_image_0000001503817636.png"></span></div>
</li><li id="css_01_0094__li552471911248">Set network specifications of the cluster.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="css_01_0094__table29572519253" frame="border" border="1" rules="all"><caption><b>Table 5 </b>Parameter description</caption><thead align="left"><tr id="css_01_0094__row159579512517"><th align="left" class="cellrowborder" valign="top" width="24.47%" id="mcps1.3.3.2.6.1.2.3.1.1"><p id="css_01_0094__p2095710562511">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="75.53%" id="mcps1.3.3.2.6.1.2.3.1.2"><p id="css_01_0094__p149578519252">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="css_01_0094__row1895720513251"><td class="cellrowborder" valign="top" width="24.47%" headers="mcps1.3.3.2.6.1.2.3.1.1 "><p id="css_01_0094__p1195718522512">VPC</p>
</td>
<td class="cellrowborder" valign="top" width="75.53%" headers="mcps1.3.3.2.6.1.2.3.1.2 "><p id="css_01_0094__p264085512814">A VPC is a secure, isolated, and logical network environment.</p>
<p id="css_01_0094__p41161851162810">Select the target VPC. Click <span class="parmname" id="css_01_0094__parmname2011675115289"><b>View VPC</b></span> to enter the VPC management console and view the created VPC names and IDs. If no VPC is available, create a VPC.</p>
<div class="note" id="css_01_0094__note114411478188"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="css_01_0094__p1344127131818">The VPC must contain CIDRs. Otherwise, cluster creation will fail. By default, a VPC will contain CIDRs.</p>
</div></div>
</td>
</tr>
<tr id="css_01_0094__row595765162514"><td class="cellrowborder" valign="top" width="24.47%" headers="mcps1.3.3.2.6.1.2.3.1.1 "><p id="css_01_0094__p4957358252">Subnet</p>
</td>
<td class="cellrowborder" valign="top" width="75.53%" headers="mcps1.3.3.2.6.1.2.3.1.2 "><p id="css_01_0094__p18101747131315">A subnet provides dedicated network resources that are isolated from other networks, improving network security.</p>
<p id="css_01_0094__p269214423135">Select the target subnet. You can access the VPC management console to view the names and IDs of the existing subnets in the VPC.</p>
</td>
</tr>
<tr id="css_01_0094__row295715514257"><td class="cellrowborder" valign="top" width="24.47%" headers="mcps1.3.3.2.6.1.2.3.1.1 "><p id="css_01_0094__p19571653255">Security Group</p>
</td>
<td class="cellrowborder" valign="top" width="75.53%" headers="mcps1.3.3.2.6.1.2.3.1.2 "><p id="css_01_0094__p12957856252">A security group is a collection of access control rules for ECSs that have the same security protection requirements and are mutually trusted in a VPC. To view more details about the security group, click <span class="parmname" id="css_01_0094__parmname144113710185"><b>View Security Group</b></span>.</p>
<div class="note" id="css_01_0094__note1744217181810"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="css_01_0094__en-us_topic_0000001268594549_ul19728838113212"><li id="css_01_0094__en-us_topic_0000001268594549_li187281538133214">For cluster access purposes, ensure that the security group contains port 9200.</li><li id="css_01_0094__en-us_topic_0000001268594549_li107154416215">If your cluster version is 7.6.2, 7.9.3 or 7.10.2, ensure that all the ports used for communication between nodes in the same security group are allowed. If such settings cannot be configured, ensure at least the access to port 9300 is allowed.</li><li id="css_01_0094__en-us_topic_0000001268594549_li420170103311">After a cluster is created, its security group cannot be changed.</li></ul>
</div></div>
</td>
</tr>
<tr id="css_01_0094__row1095719532518"><td class="cellrowborder" valign="top" width="24.47%" headers="mcps1.3.3.2.6.1.2.3.1.1 "><p id="css_01_0094__p119571151254">Security Mode</p>
</td>
<td class="cellrowborder" valign="top" width="75.53%" headers="mcps1.3.3.2.6.1.2.3.1.2 "><p id="css_01_0094__p19743821141412">Security mode is disabled.</p>
<div class="note" id="css_01_0094__note288963654818"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="css_01_0094__p1488903610481">You can enable <strong id="css_01_0094__b736118294368">Security Mode</strong> only when you create a cluster. After a cluster is created, its security mode cannot be changed.</p>
</div></div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="fignone" id="css_01_0094__fig7558102310812"><span class="figcap"><b>Figure 2 </b>Configuring network specifications</span><br><span><img id="css_01_0094__image139508551172" src="en-us_image_0000001554777397.png"></span></div>
</li><li id="css_01_0094__li3506152121919">Set the enterprise project of the cluster.<p id="css_01_0094__en-us_topic_0000001338955753_p155965550212"><a name="css_01_0094__li3506152121919"></a><a name="li3506152121919"></a>When creating a CSS cluster, you can bind an enterprise project to the cluster if you have enabled enterprise project. You can select an enterprise project created by the current user from the drop-down list or click <strong id="css_01_0094__en-us_topic_0000001338955753_b4633112311717">View Project Project</strong> to go to the <strong id="css_01_0094__en-us_topic_0000001338955753_b1782012388177">Enterprise Project Management</strong> console and create a new project or view existing projects.</p>
</li><li id="css_01_0094__li1783235571917">Configure automatic snapshot creation for the cluster.<p id="css_01_0094__en-us_topic_0000001338955753_p7466151817232"><a name="css_01_0094__li1783235571917"></a><a name="li1783235571917"></a>By default, the cluster snapshot function is enabled. If you do not need this function, you can disable <strong id="css_01_0094__en-us_topic_0000001338955753_b1674618451036">Cluster Snapshot</strong>.</p>
<div class="p" id="css_01_0094__en-us_topic_0000001338955753_p1818911212115"><strong id="css_01_0094__en-us_topic_0000001338955753_b111811053161715">Basic Configuration</strong><ul id="css_01_0094__en-us_topic_0000001338955753_ul4466418122313"><li id="css_01_0094__en-us_topic_0000001338955753_li194667189238"><strong id="css_01_0094__en-us_topic_0000001338955753_b7109105621715">OBS Bucket</strong>: name of the OBS bucket used for storing snapshots.</li><li id="css_01_0094__en-us_topic_0000001338955753_li14466918182311"><strong id="css_01_0094__en-us_topic_0000001338955753_b0461162101815">Backup Path</strong>: storage path of the snapshot in the OBS bucket.</li><li id="css_01_0094__en-us_topic_0000001338955753_li54664185236"><strong id="css_01_0094__en-us_topic_0000001338955753_b6382165181817">IAM Agency</strong>: authorized by the current account for <span id="css_01_0094__en-us_topic_0000001338955753_text19383175141811">CSS</span> to access or maintain data stored in the OBS bucket.</li></ul>
</div>
<p id="css_01_0094__en-us_topic_0000001338955753_p4466818112316">For details, see <a href="css_01_0033.html#css_01_0033__section18551039928">Managing Automatic Snapshot Creation</a>.</p>
<p id="css_01_0094__en-us_topic_0000001338955753_p158621723111118"><strong id="css_01_0094__en-us_topic_0000001338955753_b126678443125">Automatic Snapshot Creation</strong></p>
<p id="css_01_0094__en-us_topic_0000001338955753_p746671818235">You can customize <strong id="css_01_0094__en-us_topic_0000001338955753_b158231126111816">Snapshot Name Prefix</strong>, <strong id="css_01_0094__en-us_topic_0000001338955753_b3830102617185">Backup Start Time</strong>, and <strong id="css_01_0094__en-us_topic_0000001338955753_b17830192691819">Retention Period (days)</strong> as required.</p>
<ul id="css_01_0094__en-us_topic_0000001338955753_ul10466201852318"><li id="css_01_0094__en-us_topic_0000001338955753_li13466318182311"><strong id="css_01_0094__en-us_topic_0000001338955753_b11918102712184">Snapshot Name Prefix</strong>: Enter a maximum of 32 characters starting with a lowercase letter. Only lowercase letters, digits, hyphens (-), and underscores (_) are allowed.. A snapshot name consists of a snapshot name prefix and a timestamp. For example, <strong id="css_01_0094__en-us_topic_0000001338955753_b12572187121318">snapshot-1566921603720</strong>.</li><li id="css_01_0094__en-us_topic_0000001338955753_li144661818192315"><span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname12466518172316"><b>Backup Started</b></span>: indicates the time when the backup starts automatically every day. You can specify this parameter only in hours, for example, <strong id="css_01_0094__en-us_topic_0000001338955753_b167230194133">00:00</strong> or <strong id="css_01_0094__en-us_topic_0000001338955753_b672331991312">01:00</strong>. The value ranges from <strong id="css_01_0094__en-us_topic_0000001338955753_b14723151912135">00:00</strong> to <strong id="css_01_0094__en-us_topic_0000001338955753_b57237199136">23:00</strong>. Select a time from the drop-down list box.</li><li id="css_01_0094__en-us_topic_0000001338955753_li7466101852320"><span class="parmname" id="css_01_0094__en-us_topic_0000001338955753_parmname33211980157"><b>Retention Period (days)</b></span>: indicates the duration when snapshots are retained in the OBS bucket, in days. The value ranges from <strong id="css_01_0094__en-us_topic_0000001338955753_b113272871518">1</strong> to <strong id="css_01_0094__en-us_topic_0000001338955753_b183271831511">90</strong>. You can specify this parameter as required. The system automatically deletes expired snapshots every hour at half past the hour.</li></ul>
</li><li id="css_01_0094__li16584910175512">Configure advanced settings for the cluster.<ul id="css_01_0094__ul48111546185419"><li id="css_01_0094__li8811174614544"><strong id="css_01_0094__b714232174013">Default</strong>: The  the <strong id="css_01_0094__b1114216224018">VPC Endpoint Service</strong>, and <strong id="css_01_0094__b12142112194019">Tag</strong> functions are disabled by default. You can manually enable these functions after the cluster is created.</li><li id="css_01_0094__li08111646135413">Custom: You can enable the <strong id="css_01_0094__b1569513316405">VPC Endpoint Service</strong> and <strong id="css_01_0094__b106326355409">Tag</strong> functions as required.</li></ul>

<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="css_01_0094__table9584610185516" frame="border" border="1" rules="all"><caption><b>Table 6 </b>Parameters for advanced settings</caption><thead align="left"><tr id="css_01_0094__row5584510115517"><th align="left" class="cellrowborder" valign="top" width="28.43%" id="mcps1.3.3.2.9.2.2.3.1.1"><p id="css_01_0094__p45849108552">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="71.57%" id="mcps1.3.3.2.9.2.2.3.1.2"><p id="css_01_0094__p358471015555">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="css_01_0094__row10584191019556"><td class="cellrowborder" valign="top" width="28.43%" headers="mcps1.3.3.2.9.2.2.3.1.1 "><p id="css_01_0094__p55846102555">VPC Endpoint Service</p>
</td>
<td class="cellrowborder" valign="top" width="71.57%" headers="mcps1.3.3.2.9.2.2.3.1.2 "><p id="css_01_0094__p155848104553">After enabling this function, you can obtain a private domain name for accessing the cluster in the same VPC. For details, see <a href="css_01_0082.html">VPC Endpoint Service</a>.</p>
</td>
</tr>
<tr id="css_01_0094__row205841410125512"><td class="cellrowborder" valign="top" width="28.43%" headers="mcps1.3.3.2.9.2.2.3.1.1 "><p id="css_01_0094__p16584171010552">Tag</p>
</td>
<td class="cellrowborder" valign="top" width="71.57%" headers="mcps1.3.3.2.9.2.2.3.1.2 "><p id="css_01_0094__p1958412109557">Adding tags to clusters can help you identify and manage your cluster resources. You can customize tags or use tags predefined by TMS. For details, see <a href="css_01_0075.html">Managing Tags</a>.</p>
</td>
</tr>
</tbody>
</table>
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</li><li id="css_01_0094__li05241196246">Click <span class="uicontrol" id="css_01_0094__uicontrol135958186110517"><b>Next</b></span> to switch to the <strong id="css_01_0094__b190269447210517">Confirm</strong> page.</li><li id="css_01_0094__li2524141932413">After the specifications are confirmed, click <span class="uicontrol" id="css_01_0094__uicontrol052415191248"><b>Submit</b></span>.</li><li id="css_01_0094__li85241119112419">Click <span class="uicontrol" id="css_01_0094__uicontrol137003958110517"><b>Back to Cluster List</b></span> to switch to the <strong id="css_01_0094__b140302747110517">Clusters</strong> page. The cluster you created is listed on the displayed page and its status is <span class="parmname" id="css_01_0094__parmname160914421110517"><b>Creating</b></span>. If the cluster is successfully created, its status will change to <span class="parmname" id="css_01_0094__parmname152252871410517"><b>Available</b></span>.<p id="css_01_0094__p6524519192411">If the cluster creation fails, create the cluster again.</p>
</li></ol>
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<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="css_01_0008.html">Creating and Accessing a Cluster</a></div>
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