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CSS UMN 23.3.3 20240207

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Reviewed-by: Kacur, Michal <michal.kacur@t-systems.com>
Co-authored-by: Wuwan, Qi <wuwanqi1@noreply.gitea.eco.tsi-dev.otc-service.com>
Co-committed-by: Wuwan, Qi <wuwanqi1@noreply.gitea.eco.tsi-dev.otc-service.com>
This commit is contained in:
Wuwan, Qi 2024-02-08 09:50:17 +00:00 committed by zuul
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<h1 class="topictitle1">Change History</h1>
<div id="body1533042094509">
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="css_01_0055__table9573774151815" frame="border" border="1" rules="all"><thead align="left"><tr id="css_01_0055__row63868469151815"><th align="left" class="cellrowborder" valign="top" width="20.97%" id="mcps1.3.1.1.3.1.1"><p id="css_01_0055__p5963483151815"><strong id="css_01_0055__b411898719">Released On</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="css_01_0055__table9573774151815" frame="border" border="1" rules="all"><thead align="left"><tr id="css_01_0055__row63868469151815"><th align="left" class="cellrowborder" valign="top" width="20.97%" id="mcps1.3.1.1.3.1.1"><p id="css_01_0055__p5963483151815"><strong id="css_01_0055__b560208496">Released On</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="79.03%" id="mcps1.3.1.1.3.1.2"><p id="css_01_0055__p52412495151815"><strong id="css_01_0055__b9778528172917">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="css_01_0055__row1795019397278"><td class="cellrowborder" valign="top" width="20.97%" headers="mcps1.3.1.1.3.1.1 "><p id="css_01_0055__p2950133913279">2023-12-15</p>
<tbody><tr id="css_01_0055__row1645316147529"><td class="cellrowborder" valign="top" width="20.97%" headers="mcps1.3.1.1.3.1.1 "><p id="css_01_0055__p20454191417529">2024-02-07</p>
</td>
<td class="cellrowborder" valign="top" width="79.03%" headers="mcps1.3.1.1.3.1.2 "><p id="css_01_0055__p17148273527">Deleted:</p>
<ul id="css_01_0055__ul11285724192418"><li id="css_01_0055__li1628562492418">The <strong id="css_01_0055__b16817111713338">Get</strong> method from the section <a href="css_01_0061.html">Using the Open Distro SQL Plugin</a>.</li><li id="css_01_0055__li144251536152411">Upgrading Versions</li></ul>
<p id="css_01_0055__p17659175355210">Added:</p>
<p id="css_01_0055__p44721417536">New examples in section <a href="css_01_0233_0.html">Optimization of Other Parameters</a>.</p>
</td>
</tr>
<tr id="css_01_0055__row1795019397278"><td class="cellrowborder" valign="top" width="20.97%" headers="mcps1.3.1.1.3.1.1 "><p id="css_01_0055__p2950133913279">2023-12-15</p>
</td>
<td class="cellrowborder" valign="top" width="79.03%" headers="mcps1.3.1.1.3.1.2 "><p id="css_01_0055__p295018392279">Delete the following sections:</p>
<ul id="css_01_0055__ul515584710287"><li id="css_01_0055__li753564814283">Using the OpenDistro Alarm Plugin</li><li id="css_01_0055__li15354480282">(Optional) Service Authorization</li><li id="css_01_0055__li12793542284">Logstash</li><li id="css_01_0055__li2958014296">Intelligent O&amp;M</li></ul>
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<tr id="css_01_0055__row16274132412711"><td class="cellrowborder" valign="top" width="20.97%" headers="mcps1.3.1.1.3.1.1 "><p id="css_01_0055__p1727517247713">2023-9-25</p>
</td>
<td class="cellrowborder" valign="top" width="79.03%" headers="mcps1.3.1.1.3.1.2 "><p id="css_01_0055__p1634711571272">Added the following sections:</p>
<ul id="css_01_0055__ul116511171476"><li id="css_01_0055__li36815252713"><a href="css_01_0184.html">(Optional) Interconnecting with a Dedicated Load Balancer</a></li><li id="css_01_0055__li148817457915"><a href="css_01_0156.html">Replacing a Specified Node</a></li><li id="css_01_0055__li347163415910"><a href="css_01_0157.html">Adding Master/Client Nodes</a></li><li id="css_01_0055__li768252510713"><a href="css_01_0158.html">Changing the Security Mode</a></li><li id="css_01_0055__li1068216257714"><a href="css_01_0201.html">Changing AZs</a></li><li id="css_01_0055__li106821525376"><a href="css_01_0186.html">Upgrading Versions</a></li><li id="css_01_0055__li1682112518717"><a href="css_01_0061.html">Using the Open Distro SQL Plugin</a></li><li id="css_01_0055__li1940957192718">Using the OpenDistro Alarm Plugin</li><li id="css_01_0055__li792891214284">(Optional) Service Authorization</li><li id="css_01_0055__li1968318258711"><a href="css_01_0246.html">Monitoring Metrics</a></li><li id="css_01_0055__li448782422813">Logstash</li><li id="css_01_0055__li114562135107"><a href="css_01_0227.html">Enhanced Import Performance</a></li><li id="css_01_0055__li2997165621010"><a href="css_01_0172.html">Enhanced Aggregation</a></li><li id="css_01_0055__li5119223161116"><a href="css_01_0161.html">Read/Write Splitting</a></li><li id="css_01_0055__li1760993210282">Intelligent O&amp;M</li></ul>
<ul id="css_01_0055__ul116511171476"><li id="css_01_0055__li36815252713"><a href="css_01_0184.html">(Optional) Interconnecting with a Dedicated Load Balancer</a></li><li id="css_01_0055__li148817457915"><a href="css_01_0156.html">Replacing a Specified Node</a></li><li id="css_01_0055__li347163415910"><a href="css_01_0157.html">Adding Master/Client Nodes</a></li><li id="css_01_0055__li768252510713"><a href="css_01_0158.html">Changing the Security Mode</a></li><li id="css_01_0055__li1068216257714"><a href="css_01_0201.html">Changing AZs</a></li><li id="css_01_0055__li106821525376">10.7 Upgrading Versions</li><li id="css_01_0055__li1682112518717"><a href="css_01_0061.html">Using the Open Distro SQL Plugin</a></li><li id="css_01_0055__li1940957192718">Using the OpenDistro Alarm Plugin</li><li id="css_01_0055__li792891214284">(Optional) Service Authorization</li><li id="css_01_0055__li1968318258711"><a href="css_01_0246.html">Monitoring Metrics</a></li><li id="css_01_0055__li448782422813">Logstash</li><li id="css_01_0055__li114562135107"><a href="css_01_0227.html">Enhanced Import Performance</a></li><li id="css_01_0055__li2997165621010"><a href="css_01_0172.html">Enhanced Aggregation</a></li><li id="css_01_0055__li5119223161116"><a href="css_01_0161.html">Read/Write Splitting</a></li><li id="css_01_0055__li1760993210282">Intelligent O&amp;M</li></ul>
</td>
</tr>
<tr id="css_01_0055__row1296665215214"><td class="cellrowborder" valign="top" width="20.97%" headers="mcps1.3.1.1.3.1.1 "><p id="css_01_0055__p2967175275215">2023-03-28</p>

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<h1 class="topictitle1">Using the Open Distro SQL Plugin</h1>
<div id="body1562124251004"><p id="css_01_0061__en-us_topic_0000001268594557_p412122212308">For Elasticsearch 6.5.4 and later versions, Open Distro for Elasticsearch SQL lets you write queries in SQL rather than in the Elasticsearch query domain-specific language (DSL).</p>
<p id="css_01_0061__en-us_topic_0000001268594557_p14906121217302">If you are already familiar with SQL and do not want to learn query DSL, this feature is a great option.</p>
<div class="section" id="css_01_0061__en-us_topic_0000001268594557_section59231342303"><h4 class="sectiontitle">Basic Operations</h4><ul id="css_01_0061__en-us_topic_0000001268594557_ul165831326120"><li id="css_01_0061__en-us_topic_0000001268594557_li05831021116">Kibana (recommended)<ul id="css_01_0061__en-us_topic_0000001268594557_ul67081305120"><li id="css_01_0061__en-us_topic_0000001268594557_li14709103011119">Log in to Kibana and send requests using request parameters or request body to <strong id="css_01_0061__b13214411195512">_opendistro/_sqlURI</strong> in the <strong id="css_01_0061__b17268815105516">Dev Tools</strong> page.<pre class="screen" id="css_01_0061__en-us_topic_0000001268594557_screen887920471045">GET _opendistro/_sql?sql=select * from my-index limit 50</pre>
<pre class="screen" id="css_01_0061__en-us_topic_0000001268594557_screen158809477411">POST _opendistro/_sql
<div class="section" id="css_01_0061__en-us_topic_0000001268594557_section59231342303"><h4 class="sectiontitle">Basic Operations</h4><ul id="css_01_0061__en-us_topic_0000001268594557_ul165831326120"><li id="css_01_0061__en-us_topic_0000001268594557_li05831021116">Kibana (recommended)<ul id="css_01_0061__en-us_topic_0000001268594557_ul67081305120"><li id="css_01_0061__en-us_topic_0000001268594557_li14709103011119">Log in to Kibana and send requests using request parameters or request body to <strong id="css_01_0061__b13214411195512">_opendistro/_sqlURI</strong> in the <strong id="css_01_0061__b17268815105516">Dev Tools</strong> page.<pre class="screen" id="css_01_0061__en-us_topic_0000001268594557_screen158809477411">POST _opendistro/_sql
{
"query": "SELECT * FROM my-index LIMIT 50"
}</pre>

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<tr id="css_01_0185__en-us_topic_0000001420852786_row176104581777"><td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.2.4.1.1 "><p id="css_01_0185__en-us_topic_0000001420852786_p19610105812718">Version</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.2.4.1.2 "><p id="css_01_0185__en-us_topic_0000001420852786_p10610115810711">Cluster version information.</p>
<p id="css_01_0185__en-us_topic_0000001420852786_p17394484282">For details about how to upgrade the cluster version, see <a href="css_01_0186.html">Upgrading Versions</a>.</p>
</td>
</tr>
<tr id="css_01_0185__en-us_topic_0000001420852786_row156102581677"><td class="cellrowborder" valign="top" headers="mcps1.3.2.3.2.2.4.1.1 "><p id="css_01_0185__en-us_topic_0000001420852786_p261035815712">Cluster Status</p>

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</li>
<li class="ulchildlink"><strong><a href="css_01_0149.html">Changing the Elasticsearch Cluster Form</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="css_01_0186.html">Upgrading Versions</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="css_01_0211.html">Configuring an Elasticsearch Cluster</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="css_01_0077.html">Managing Logs</a></strong><br>

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</li>
<li class="ulchildlink"><strong><a href="css_01_0232.html">Text Index Acceleration</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="css_01_0233.html">Optimization of Other Parameters</a></strong><br>
<li class="ulchildlink"><strong><a href="css_01_0233_0.html">Optimization of Other Parameters</a></strong><br>
</li>
</ul>

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<a name="css_01_0233"></a><a name="css_01_0233"></a>
<h1 class="topictitle1">Optimization of Other Parameters</h1>
<div id="body8662426"><p id="css_01_0233__en-us_topic_0000001549183725_p1697004210486">After the import optimization function is enabled, the number of index merge tasks will increase. You can configure the following parameters to reduce the impact of merge task overhead on the import performance:</p>
<p id="css_01_0233__p532482845319">You can increase the value of <span class="parmname" id="css_01_0233__en-us_topic_0000001549183725_parmname15616173417612"><b>index.merge.scheduler.max_thread_count</b></span> to increase the number of shard merge threads and reduce the traffic limit on data import. The default value is <strong id="css_01_0233__en-us_topic_0000001549183725_b1124267132119">4</strong>. You are advised to set it to <strong id="css_01_0233__en-us_topic_0000001549183725_b199001310172115">8</strong>.</p>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="css_01_0229.html">Instructions</a></div>
</div>
</div>

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<a name="css_01_0233_0"></a><a name="css_01_0233_0"></a>
<h1 class="topictitle1">Optimization of Other Parameters</h1>
<div id="body8662426"><p id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549183725_p1697004210486">After the import performance is enhanced, the number of index merge tasks increases accordingly. You can adjust the following configuration to reduce the impact of merge task overhead on the import performance:</p>
<p id="css_01_0233_0__en-us_topic_0000001584988497_p532482845319">You can increase the value of <span class="parmname" id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549183725_parmname15616173417612"><b>index.merge.scheduler.max_thread_count</b></span> to increase the number of shard merge threads and reduce the traffic limit on data import. The default value is <strong id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549183725_b1124267132119">4</strong> and you are advised to set it to <strong id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549183725_b199001310172115">8</strong>.</p>
<div class="section" id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549303621_section381314245297"><h4 class="sectiontitle">Procedure</h4><ol id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549303621_ol1549211439294"><li id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549303621_li94259413385">Choose <strong id="css_01_0233_0__en-us_topic_0000001584988497_b7787141010224">Clusters</strong> in the navigation pane. On the <strong id="css_01_0233_0__en-us_topic_0000001584988497_b15787121082211">Clusters</strong> page, locate the target cluster, and click <strong id="css_01_0233_0__en-us_topic_0000001584988497_b107871108226">Access Kibana</strong> in the <strong id="css_01_0233_0__en-us_topic_0000001584988497_b478720106220">Operation</strong> column.</li><li id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549303621_li11420444113818">In the navigation tree on the left, choose <strong id="css_01_0233_0__en-us_topic_0000001584988497_b1433219218221">Dev Tools</strong>.</li><li id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549303621_li14923433297">On the <span class="uicontrol" id="css_01_0233_0__en-us_topic_0000001584988497_uicontrol83839231224"><b>Dev Tools</b></span> page, run the following command:<pre class="screen" id="css_01_0233_0__en-us_topic_0000001584988497_en-us_topic_0000001549303621_screen1467804014239">PUT my_index
{
"settings": {
"index.merge.scheduler.max_thread_count": 8
}
}</pre>
</li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="css_01_0229.html">Instructions</a></div>
</div>
</div>

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