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Yang, Tong
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Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
51 lines
6.0 KiB
HTML
51 lines
6.0 KiB
HTML
<a name="mrs_01_24231"></a><a name="mrs_01_24231"></a>
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<h1 class="topictitle1">Replication Table Data Synchronization Monitoring</h1>
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<div id="body8662426"><div class="section" id="mrs_01_24231__en-us_topic_0000001173949854_section7556193865411"><h4 class="sectiontitle">Scenario</h4><p id="mrs_01_24231__en-us_topic_0000001173949854_p10783204065417">MRS monitors the synchronization between multiple copies of data in the same shard of a Replicated*MergeTree table.</p>
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<div class="section" id="mrs_01_24231__en-us_topic_0000001173949854_section1556518546165"><h4 class="sectiontitle">Constraints</h4><p id="mrs_01_24231__en-us_topic_0000001173949854_p16753125391410">Currently, you can monitor and query only Replicated*MergeTree tables whose creation statements contain the key word <strong id="mrs_01_24231__en-us_topic_0000001173949854_b19976184131617">ON CLUSTER</strong>.</p>
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<div class="section" id="mrs_01_24231__en-us_topic_0000001173949854_section1693918376215"><h4 class="sectiontitle">Replication Table Data Synchronization</h4><ul id="mrs_01_24231__en-us_topic_0000001173949854_ul96136461418"><li id="mrs_01_24231__en-us_topic_0000001173949854_li15613446949"><strong id="mrs_01_24231__en-us_topic_0000001173949854_b14693122613148">Procedure</strong><p id="mrs_01_24231__en-us_topic_0000001173949854_p11061356321">Log in to FusionInsight Manager and choose <strong id="mrs_01_24231__en-us_topic_0000001173949854_b1253112397142">Cluster</strong> > <strong id="mrs_01_24231__en-us_topic_0000001173949854_b859154461415">Services</strong> > <strong id="mrs_01_24231__en-us_topic_0000001173949854_b3409194819148">ClickHouse</strong>. On the displayed page, click the <strong id="mrs_01_24231__en-us_topic_0000001173949854_b389091611157">Data Synchronization Status</strong> tab.</p>
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</li></ul>
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<ul id="mrs_01_24231__en-us_topic_0000001173949854_ul128207482044"><li id="mrs_01_24231__en-us_topic_0000001173949854_li28204481649"><strong id="mrs_01_24231__en-us_topic_0000001173949854_b7641844201516">Data synchronization parameters</strong>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="mrs_01_24231__en-us_topic_0000001173949854_table1578619528431" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Data synchronization parameters</caption><thead align="left"><tr id="mrs_01_24231__en-us_topic_0000001173949854_row8786752194310"><th align="left" class="cellrowborder" valign="top" width="12.5%" id="mcps1.3.3.3.1.2.2.3.1.1"><p id="mrs_01_24231__en-us_topic_0000001173949854_p1786125214436">Parameter</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="87.5%" id="mcps1.3.3.3.1.2.2.3.1.2"><p id="mrs_01_24231__en-us_topic_0000001173949854_p678618524439">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="mrs_01_24231__en-us_topic_0000001173949854_row11786175254318"><td class="cellrowborder" valign="top" width="12.5%" headers="mcps1.3.3.3.1.2.2.3.1.1 "><p id="mrs_01_24231__en-us_topic_0000001173949854_p3786052184313">Data Tables</p>
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</td>
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<td class="cellrowborder" valign="top" width="87.5%" headers="mcps1.3.3.3.1.2.2.3.1.2 "><p id="mrs_01_24231__en-us_topic_0000001173949854_p14786125215435">Names of Replicated*MergeTree tables.</p>
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</td>
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</tr>
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<tr id="mrs_01_24231__en-us_topic_0000001173949854_row14786252104310"><td class="cellrowborder" valign="top" width="12.5%" headers="mcps1.3.3.3.1.2.2.3.1.1 "><p id="mrs_01_24231__en-us_topic_0000001173949854_p169861348467">Shard</p>
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</td>
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<td class="cellrowborder" valign="top" width="87.5%" headers="mcps1.3.3.3.1.2.2.3.1.2 "><p id="mrs_01_24231__en-us_topic_0000001173949854_p11786105234314">ClickHouse shard where the data table is located.</p>
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</td>
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</tr>
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<tr id="mrs_01_24231__en-us_topic_0000001173949854_row2078635284313"><td class="cellrowborder" valign="top" width="12.5%" headers="mcps1.3.3.3.1.2.2.3.1.1 "><p id="mrs_01_24231__en-us_topic_0000001173949854_p16481319083">Status</p>
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<td class="cellrowborder" valign="top" width="87.5%" headers="mcps1.3.3.3.1.2.2.3.1.2 "><p id="mrs_01_24231__en-us_topic_0000001173949854_p17786165284313">Data synchronization status. The options are as follows:</p>
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<ul id="mrs_01_24231__en-us_topic_0000001173949854_ul1127615342089"><li id="mrs_01_24231__en-us_topic_0000001173949854_li7276034886"><strong id="mrs_01_24231__en-us_topic_0000001173949854_b14194144482119">No data</strong>: The table has no data on this shard.</li><li id="mrs_01_24231__en-us_topic_0000001173949854_li47245364810"><strong id="mrs_01_24231__en-us_topic_0000001173949854_b371714427200">Synchronized</strong>: The table has data on this shard, and multiple instance copies of the same shard are the same.</li><li id="mrs_01_24231__en-us_topic_0000001173949854_li83781509912"><strong id="mrs_01_24231__en-us_topic_0000001173949854_b84319411216">Not synchronized</strong>: The table has data on this shard, but multiple instance copies of the same shard are not the same.</li></ul>
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</td>
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<tr id="mrs_01_24231__en-us_topic_0000001173949854_row147352569448"><td class="cellrowborder" valign="top" width="12.5%" headers="mcps1.3.3.3.1.2.2.3.1.1 "><p id="mrs_01_24231__en-us_topic_0000001173949854_p4735145664416">Details</p>
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<td class="cellrowborder" valign="top" width="87.5%" headers="mcps1.3.3.3.1.2.2.3.1.2 "><p id="mrs_01_24231__en-us_topic_0000001173949854_p5735205618442">Data synchronization details of the data table on the corresponding ClickHouseServer instance.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</li><li id="mrs_01_24231__en-us_topic_0000001173949854_li250812321017"><strong id="mrs_01_24231__en-us_topic_0000001173949854_b10201426234">Filter conditions</strong><p id="mrs_01_24231__en-us_topic_0000001173949854_p7551338112">You can select <strong id="mrs_01_24231__en-us_topic_0000001173949854_b144291249135019">By Data Tables</strong> and enter a data table name in the search box to filter data tables.</p>
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</li></ul>
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</div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_24229.html">Monitoring of Slow ClickHouse Query Statements and Replication Table Data Synchronization</a></div>
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