forked from docs/doc-exports
Zheng, Xiu
5b5876528a
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: Zheng, Xiu <zhengxiu@huawei.com> Co-committed-by: Zheng, Xiu <zhengxiu@huawei.com>
87 lines
9.4 KiB
HTML
87 lines
9.4 KiB
HTML
<a name="css_01_0151"></a><a name="css_01_0151"></a>
|
|
|
|
<h1 class="topictitle1">Scaling Out a Cluster</h1>
|
|
<div id="body0000001527241393"><p id="css_01_0151__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>
|
|
<div class="section" id="css_01_0151__section11686944145218"><h4 class="sectiontitle">Prerequisites</h4><ul id="css_01_0151__ul1977488417"><li id="css_01_0151__li157741281010">The target cluster is available and has no tasks in progress.</li><li id="css_01_0151__li13774781313">The target cluster has sufficient quotas available.</li></ul>
|
|
</div>
|
|
<div class="section" id="css_01_0151__section12477125117522"><h4 class="sectiontitle">Constraints</h4><ul id="css_01_0151__ul1549322814277"><li id="css_01_0151__li776243913339">Node specifications cannot be modified during cluster scale-out.</li><li id="css_01_0151__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__li7493162820274">The quota of nodes in different types varies. For details, see <a href="#css_01_0151__table10730243193816">Table 1</a>.
|
|
<div class="tablenoborder"><a name="css_01_0151__table10730243193816"></a><a name="table10730243193816"></a><table cellpadding="4" cellspacing="0" summary="" id="css_01_0151__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__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__p1976954343811">Node Type</p>
|
|
</th>
|
|
<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__p1276920435389">Number</p>
|
|
</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody><tr id="css_01_0151__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__p18769184333816">ess</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__p127691243123819">ess: 1-32</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="css_01_0151__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__p776964317385">ess, ess-master</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__p9769194317381">ess: 1-200</p>
|
|
<p id="css_01_0151__p1976911438384">ess-master: an odd number ranging from 3 to 9</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="css_01_0151__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__p1769443133816">ess, ess-client</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__p157691943163815">ess: 1-32</p>
|
|
<p id="css_01_0151__p1976917431383">ess-client: 1-32</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="css_01_0151__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__p18769343203813">ess, ess-cold</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__p12769194317384">ess: 1-32</p>
|
|
<p id="css_01_0151__p1138220591537">ess-cold: 1-32</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="css_01_0151__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__p1477054314389">ess, ess-master, ess-client</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__p2770164303816">ess: 1-200</p>
|
|
<p id="css_01_0151__p877020432386">ess-master: an odd number ranging from 3 to 9</p>
|
|
<p id="css_01_0151__p177044313389">ess-client: 1-32</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="css_01_0151__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__p2770443173816">ess, ess-master, ess-cold</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__p1777074316382">ess: 1-200</p>
|
|
<p id="css_01_0151__p5770124393818">ess-master: an odd number ranging from 3 to 9</p>
|
|
<p id="css_01_0151__p161801250733">ess-cold: 1-32</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="css_01_0151__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__p777018438384">ess, ess-client, ess-cold</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__p077074353816">ess: 1-32</p>
|
|
<p id="css_01_0151__p12770194393813">ess-client: 1-32</p>
|
|
<p id="css_01_0151__p1841425314">ess-cold: 1-32</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="css_01_0151__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__p577044333818">ess, ess-master, ess-client, ess-cold</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="49.47%" headers="mcps1.3.3.2.3.2.2.3.1.2 "><p id="css_01_0151__p1777017437384">ess: 1-200</p>
|
|
<p id="css_01_0151__p077034315388">ess-master: an odd number ranging from 3 to 9</p>
|
|
<p id="css_01_0151__p5770144314386">ess-client: 1-32</p>
|
|
<p id="css_01_0151__p1278719254314">ess-cold: 1-32</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="css_01_0151__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__p3497523687">Details about the four node types:<ul id="css_01_0151__ul12497123683"><li id="css_01_0151__li64981323284"><strong id="css_01_0151__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__li6498112311818"><strong id="css_01_0151__b14242174542716">ess-master</strong>: master node</li><li id="css_01_0151__li114982231584"><strong id="css_01_0151__b051753122720">ess-client</strong>: client node</li><li id="css_01_0151__li64984238813"><strong id="css_01_0151__b151201057162715">ess-cold</strong>: cold data node</li></ul>
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</li></ul>
|
|
</div>
|
|
<div class="section" id="css_01_0151__section88251810174819"><h4 class="sectiontitle">Procedure</h4><ol id="css_01_0151__ol282541054817"><li id="css_01_0151__li1173513611411">Log in to the CSS management console.</li><li id="css_01_0151__li17735636141417">In the navigation pane on the left, choose <strong id="css_01_0151__b468415893218">Clusters</strong>. On the displayed <strong id="css_01_0151__b17863162743213">Clusters</strong> page, locate the target cluster and choose <strong id="css_01_0151__b6658165419328">More</strong> > <span class="uicontrol" id="css_01_0151__uicontrol666505023119"><b>Scale Cluster</b></span> in the <strong id="css_01_0151__b2129936123313">Operation</strong> column.</li><li id="css_01_0151__li13735736141416">On the <strong id="css_01_0151__b3319153162310">Modify Configuration</strong> page, set scale-out parameters.<ul id="css_01_0151__ul02151151205413"><li id="css_01_0151__li22151851165410"><span class="parmname" id="css_01_0151__parmname72931116554"><b>New Nodes</b></span>: The number of default nodes. For details about the quota, see <a href="#css_01_0151__table10730243193816">Table 1</a>.</li><li id="css_01_0151__li10215165155417"><span class="parmname" id="css_01_0151__parmname112574145512"><b>Node Storage Capacity</b></span>: The storage capacity of the default nodes. The quota is determined by the <strong id="css_01_0151__b156751340201412">New Node Specifications</strong>. The value must be a multiple of 20.</li></ul>
|
|
<div class="note" id="css_01_0151__note12801383526"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="css_01_0151__p78018805211">If a cluster has master, client, or cold data nodes, you can change the number of these nodes and expand the storage capacity of cold data nodes. For details about the quotas of the master, client, and cold data node, see <a href="#css_01_0151__table10730243193816">Table 1</a>.</p>
|
|
</div></div>
|
|
</li><li id="css_01_0151__li196007301612">Click <span class="uicontrol" id="css_01_0151__uicontrol19980126142514"><b>Next</b></span>.</li><li id="css_01_0151__li13737436141418">Confirm the information and click <strong id="css_01_0151__b650894219561">Submit</strong>.</li><li id="css_01_0151__li18826191011484">Click <span class="uicontrol" id="css_01_0151__uicontrol116381731145616"><b>Back to Cluster List</b></span> to switch to the <strong id="css_01_0151__b06381431145612">Clusters</strong> page. The <span class="parmname" id="css_01_0151__parmname69181756145512"><b>Task Status</b></span> is <span class="parmvalue" id="css_01_0151__parmvalue57378369140"><b>Scaling out</b></span>. When <span class="parmname" id="css_01_0151__parmname1986518302534"><b>Cluster Status</b></span> changes to <span class="parmvalue" id="css_01_0151__parmvalue1086511305538"><b>Available</b></span>, the cluster has been successfully scaled out.</li></ol>
|
|
</div>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="css_01_0149.html">Scaling In/Out a Cluster</a></div>
|
|
</div>
|
|
</div>
|
|
|