forked from docs/doc-exports
Wuwan, Qi
050b395397
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>
86 lines
12 KiB
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86 lines
12 KiB
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<a name="css_01_0151"></a><a name="css_01_0151"></a>
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<h1 class="topictitle1">Scaling Out a Cluster</h1>
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<div id="body0000001285669680"><p id="css_01_0151__en-us_topic_0000001285669680_p18220112044212">If the workloads on the data plane of a cluster change, you can scale out the cluster by increasing the number or capacity of its nodes. Services are not interrupted during cluster scale-out.</p>
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<div class="section" id="css_01_0151__en-us_topic_0000001285669680_section11686944145218"><h4 class="sectiontitle">Prerequisites</h4><ul id="css_01_0151__en-us_topic_0000001285669680_ul1977488417"><li id="css_01_0151__en-us_topic_0000001285669680_li157741281010">The target cluster is available and has no tasks in progress.</li><li id="css_01_0151__en-us_topic_0000001285669680_li13774781313">The target cluster has sufficient quotas available.</li></ul>
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</div>
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<div class="section" id="css_01_0151__en-us_topic_0000001285669680_section12477125117522"><h4 class="sectiontitle">Constraints</h4><ul id="css_01_0151__en-us_topic_0000001285669680_ul1549322814277"><li id="css_01_0151__en-us_topic_0000001285669680_li776243913339">The <span class="parmname" id="css_01_0151__en-us_topic_0000001285669680_parmname448251694111"><b>Node Specifications</b></span> cannot be modified during scale-out. You can modify <span class="parmname" id="css_01_0151__parmname122381512212"><b>Node Specifications</b></span> by referring to <a href="css_01_0152.html">Changing Specifications</a>.</li><li id="css_01_0151__en-us_topic_0000001285669680_li2821830236">If you change the number and storage capacity of a specified type of node, nodes in other types will not be changed.</li><li id="css_01_0151__en-us_topic_0000001285669680_li7493162820274">The quota of nodes in different types varies. For details, see <a href="#css_01_0151__en-us_topic_0000001285669680_table10730243193816">Table 1</a>.
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<div class="tablenoborder"><a name="css_01_0151__en-us_topic_0000001285669680_table10730243193816"></a><a name="en-us_topic_0000001285669680_table10730243193816"></a><table cellpadding="4" cellspacing="0" summary="" id="css_01_0151__en-us_topic_0000001285669680_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_0151__en-us_topic_0000001285669680_row1976920435387"><th align="left" class="cellrowborder" valign="top" width="50.529999999999994%" id="mcps1.3.3.2.3.2.2.3.1.1"><p id="css_01_0151__en-us_topic_0000001285669680_p1976954343811">Node Type</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="49.47%" id="mcps1.3.3.2.3.2.2.3.1.2"><p id="css_01_0151__en-us_topic_0000001285669680_p1276920435389">Number</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="css_01_0151__en-us_topic_0000001285669680_row1769164393820"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.3.2.3.2.2.3.1.1 "><p id="css_01_0151__en-us_topic_0000001285669680_p18769184333816">ess</p>
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</td>
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<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__en-us_topic_0000001285669680_p127691243123819">ess: 1-32</p>
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</td>
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</tr>
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<tr id="css_01_0151__en-us_topic_0000001285669680_row177691843183816"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.3.2.3.2.2.3.1.1 "><p id="css_01_0151__en-us_topic_0000001285669680_p776964317385">ess, ess-master</p>
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</td>
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<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__en-us_topic_0000001285669680_p9769194317381">ess: 1-200</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p1976911438384">ess-master: an odd number ranging from 3 to 9</p>
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</td>
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</tr>
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<tr id="css_01_0151__en-us_topic_0000001285669680_row107691743183814"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.3.2.3.2.2.3.1.1 "><p id="css_01_0151__en-us_topic_0000001285669680_p1769443133816">ess, ess-client</p>
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</td>
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<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__en-us_topic_0000001285669680_p157691943163815">ess: 1-32</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p1976917431383">ess-client: 1-32</p>
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</td>
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</tr>
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<tr id="css_01_0151__en-us_topic_0000001285669680_row57692432388"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.3.2.3.2.2.3.1.1 "><p id="css_01_0151__en-us_topic_0000001285669680_p18769343203813">ess, ess-cold</p>
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</td>
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<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__en-us_topic_0000001285669680_p12769194317384">ess: 1-32</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p1138220591537">ess-cold: 1-32</p>
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</td>
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</tr>
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<tr id="css_01_0151__en-us_topic_0000001285669680_row187701743193815"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.3.2.3.2.2.3.1.1 "><p id="css_01_0151__en-us_topic_0000001285669680_p1477054314389">ess, ess-master, ess-client</p>
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</td>
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<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__en-us_topic_0000001285669680_p2770164303816">ess: 1-200</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p877020432386">ess-master: an odd number ranging from 3 to 9</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p177044313389">ess-client: 1-32</p>
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</td>
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</tr>
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<tr id="css_01_0151__en-us_topic_0000001285669680_row27701443143811"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.3.2.3.2.2.3.1.1 "><p id="css_01_0151__en-us_topic_0000001285669680_p2770443173816">ess, ess-master, ess-cold</p>
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</td>
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<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__en-us_topic_0000001285669680_p1777074316382">ess: 1-200</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p5770124393818">ess-master: an odd number ranging from 3 to 9</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p161801250733">ess-cold: 1-32</p>
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</td>
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</tr>
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<tr id="css_01_0151__en-us_topic_0000001285669680_row67708433382"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.3.2.3.2.2.3.1.1 "><p id="css_01_0151__en-us_topic_0000001285669680_p777018438384">ess, ess-client, ess-cold</p>
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</td>
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<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__en-us_topic_0000001285669680_p077074353816">ess: 1-32</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p12770194393813">ess-client: 1-32</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p1841425314">ess-cold: 1-32</p>
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</td>
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</tr>
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<tr id="css_01_0151__en-us_topic_0000001285669680_row7770143153811"><td class="cellrowborder" valign="top" width="50.529999999999994%" headers="mcps1.3.3.2.3.2.2.3.1.1 "><p id="css_01_0151__en-us_topic_0000001285669680_p577044333818">ess, ess-master, ess-client, ess-cold</p>
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</td>
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<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__en-us_topic_0000001285669680_p1777017437384">ess: 1-200</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p077034315388">ess-master: an odd number ranging from 3 to 9</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p5770144314386">ess-client: 1-32</p>
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<p id="css_01_0151__en-us_topic_0000001285669680_p1278719254314">ess-cold: 1-32</p>
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</td>
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</tr>
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<tr id="css_01_0151__en-us_topic_0000001285669680_row14267396512"><td class="cellrowborder" colspan="2" valign="top" headers="mcps1.3.3.2.3.2.2.3.1.1 mcps1.3.3.2.3.2.2.3.1.2 "><div class="p" id="css_01_0151__en-us_topic_0000001285669680_p3497523687">Details about the four node types:<ul id="css_01_0151__en-us_topic_0000001285669680_ul12497123683"><li id="css_01_0151__en-us_topic_0000001285669680_li64981323284"><strong id="css_01_0151__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_0151__en-us_topic_0000001285669680_li6498112311818"><strong id="css_01_0151__en-us_topic_0000001285669680_b14242174542716">ess-master</strong>: master node</li><li id="css_01_0151__en-us_topic_0000001285669680_li114982231584"><strong id="css_01_0151__en-us_topic_0000001285669680_b051753122720">ess-client</strong>: client node</li><li id="css_01_0151__en-us_topic_0000001285669680_li64984238813"><strong id="css_01_0151__en-us_topic_0000001285669680_b151201057162715">ess-cold</strong>: cold data node</li></ul>
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</div>
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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></ul>
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</div>
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<div class="section" id="css_01_0151__en-us_topic_0000001285669680_section1177713055318"><h4 class="sectiontitle">Procedure</h4><ol id="css_01_0151__en-us_topic_0000001285669680_ol373518361145"><li id="css_01_0151__en-us_topic_0000001285669680_li1173513611411">Log in to the <span id="css_01_0151__en-us_topic_0000001285669680_text197351036151410">CSS</span> management console.</li><li id="css_01_0151__li108716541501">In the navigation pane, choose a cluster type. The cluster management page is displayed.</li><li id="css_01_0151__en-us_topic_0000001285669680_li17735636141417">Choose <strong id="css_01_0151__b926419316290">More</strong> > <strong id="css_01_0151__b752813713298">Modify Configuration</strong> in the <strong id="css_01_0151__b17329101322918">Operation</strong> column of the target cluster. The <strong id="css_01_0151__b9876140192919">Modify Configuration</strong> page is displayed.</li><li id="css_01_0151__en-us_topic_0000001285669680_li13735736141416">On the <strong id="css_01_0151__en-us_topic_0000001285669680_b171539172136">Modify Configuration</strong> page, choose the <strong id="css_01_0151__en-us_topic_0000001285669680_b171534177132">Scale Cluster</strong> tab and click <strong id="css_01_0151__en-us_topic_0000001285669680_b393815546151">Scale out</strong> to set parameters.<ul id="css_01_0151__en-us_topic_0000001285669680_ul02151151205413"><li id="css_01_0151__en-us_topic_0000001285669680_li22151451125417"><span class="parmname" id="css_01_0151__parmname45251821194513"><b>Action</b></span>: Select <strong id="css_01_0151__b05252219450">Scale out</strong>.</li><li id="css_01_0151__li13973172985112"><span class="parmname" id="css_01_0151__parmname14921138125113"><b>Resource</b></span>: The changed amount of resources.</li><li id="css_01_0151__li1669413212533"><span class="parmname" id="css_01_0151__parmname569417210535"><b>Nodes</b></span>: The number of nodes and node storage capacity of the default data node.<ul id="css_01_0151__ul15248214547"><li id="css_01_0151__li864612075418"><span class="parmvalue" id="css_01_0151__parmvalue1167394615532"><b>Nodes</b></span>: For details, see <a href="#css_01_0151__en-us_topic_0000001285669680_table10730243193816">Table 1</a>.</li><li id="css_01_0151__li146463065417">The value range of <strong id="css_01_0151__b1771122482016">Node Storage Type</strong> depends on the <strong id="css_01_0151__b633543811207">Node Specifications</strong>. The value must be a multiple of 20.</li></ul>
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</li></ul>
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</li><li id="css_01_0151__en-us_topic_0000001285669680_li173623641418">Click <span class="uicontrol" id="css_01_0151__uicontrol1674255191317"><b>Next</b></span>.</li><li id="css_01_0151__en-us_topic_0000001285669680_li13737436141418">Confirm the information and click <strong id="css_01_0151__en-us_topic_0000001285669680_b650894219561">Submit</strong>.</li><li id="css_01_0151__en-us_topic_0000001285669680_li177371136191417">Click <span class="uicontrol" id="css_01_0151__en-us_topic_0000001285669680_uicontrol116381731145616"><b>Back to Cluster List</b></span> to switch to the <strong id="css_01_0151__en-us_topic_0000001285669680_b06381431145612">Clusters</strong> page. The <span class="parmname" id="css_01_0151__en-us_topic_0000001285669680_parmname69181756145512"><b>Task Status</b></span> is <span class="parmvalue" id="css_01_0151__en-us_topic_0000001285669680_parmvalue57378369140"><b>Scaling out</b></span>. When <span class="parmname" id="css_01_0151__en-us_topic_0000001285669680_parmname1986518302534"><b>Cluster Status</b></span> changes to <span class="parmvalue" id="css_01_0151__en-us_topic_0000001285669680_parmvalue1086511305538"><b>Available</b></span>, the cluster has been successfully scaled out.</li></ol>
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</div>
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</div>
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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="css_01_0149.html">Changing the Elasticsearch Cluster Form</a></div>
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</div>
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</div>
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