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zhengxiu
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Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: zhengxiu <zhengxiu@huawei.com> Co-committed-by: zhengxiu <zhengxiu@huawei.com>
19 lines
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19 lines
5.0 KiB
HTML
<a name="EN-US_TOPIC_0000001960517853"></a><a name="EN-US_TOPIC_0000001960517853"></a>
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<h1 class="topictitle1">Can a Deleted CSS Cluster Be Restored?</h1>
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<div id="body0000001350428305"><p id="EN-US_TOPIC_0000001960517853__p2513657384">For a deleted Elasticsearch or OpenSearch, if it still has snapshots stored in OBS, it can be restored using these snapshots. Otherwise, it cannot be restored. Therefore, exercise caution when deciding to delete a cluster.</p>
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<p id="EN-US_TOPIC_0000001960517853__p063991573515">To restore a deleted cluster using one of its snapshots stored in OBS, perform the following steps:</p>
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<ol id="EN-US_TOPIC_0000001960517853__ol4493193512359"><li id="EN-US_TOPIC_0000001960517853__li349393563519"><span id="EN-US_TOPIC_0000001960517853__ph13918251132516">Log in to the CSS management console.</span></li><li id="EN-US_TOPIC_0000001960517853__li1811410211349">In the navigation pane on the left, expand <strong id="EN-US_TOPIC_0000001960517853__b181406944051515">Clusters</strong>. Select a cluster type based on the target cluster. The cluster list is displayed.</li><li id="EN-US_TOPIC_0000001960517853__li5736142015443">Click <strong id="EN-US_TOPIC_0000001960517853__b195031030102312">Create Cluster</strong> in the upper-right corner to create a cluster that is of the same type as the deleted cluster. Make sure that:<ul id="EN-US_TOPIC_0000001960517853__ul1223454918517"><li id="EN-US_TOPIC_0000001960517853__li1523474919513">The new cluster is in the same region as the deleted cluster.</li><li id="EN-US_TOPIC_0000001960517853__li12351449145120">The cluster version is the same as or later than that of the deleted cluster.</li><li id="EN-US_TOPIC_0000001960517853__li10235154945111">The number of nodes in the new cluster is greater than half of that in the deleted cluster. Ideally, they should have the same number of nodes. This is to prevent data restoration failures.</li><li id="EN-US_TOPIC_0000001960517853__li12354497519">Deselect <strong id="EN-US_TOPIC_0000001960517853__b7606152973411">Automatic Snapshot Creation</strong>.</li></ul>
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</li><li id="EN-US_TOPIC_0000001960517853__li1479018342000">When the status of the new cluster changes to <strong id="EN-US_TOPIC_0000001960517853__b10981055203411">Available</strong>, enable cluster snapshots.<ol type="a" id="EN-US_TOPIC_0000001960517853__ol77796035317"><li id="EN-US_TOPIC_0000001960517853__li17576155825217">In the cluster list, click the name of the new cluster. The cluster information page is displayed.</li><li id="EN-US_TOPIC_0000001960517853__li1358971614534">Click the <strong id="EN-US_TOPIC_0000001960517853__b191116466351515">Cluster Snapshots</strong> tab.</li><li id="EN-US_TOPIC_0000001960517853__li032616311537">Click <strong id="EN-US_TOPIC_0000001960517853__b915352619352">Enable Snapshot</strong>. In the displayed dialog box, configure the necessary settings. Keep <span class="parmname" id="EN-US_TOPIC_0000001960517853__parmname12734173217548"><b>OBS Bucket</b></span> and <span class="parmname" id="EN-US_TOPIC_0000001960517853__parmname83007356542"><b>Backup Path</b></span> consistent with those of the deleted cluster.</li><li id="EN-US_TOPIC_0000001960517853__li34171120195510">Click <span class="uicontrol" id="EN-US_TOPIC_0000001960517853__uicontrol1864295685514"><b>OK</b></span>.</li></ol>
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</li><li id="EN-US_TOPIC_0000001960517853__li1373383175719">Above the cluster snapshot task list, click <strong id="EN-US_TOPIC_0000001960517853__b13548185953716">Synchronize OBS Backups</strong>. After data synchronization, manually refresh the list to show the updated snapshot information.<p id="EN-US_TOPIC_0000001960517853__p7918223592">The snapshots of the deleted cluster are displayed in the cluster snapshot task list.</p>
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</li><li id="EN-US_TOPIC_0000001960517853__li17869046102">Restore data from snapshots.<ol type="a" id="EN-US_TOPIC_0000001960517853__ol958265518018"><li id="EN-US_TOPIC_0000001960517853__li16415175412017">In the cluster snapshot task list, locate the needed snapshot, and click <span class="uicontrol" id="EN-US_TOPIC_0000001960517853__uicontrol3345311018"><b>Restore</b></span> in the <strong id="EN-US_TOPIC_0000001960517853__b165644604012">Operation</strong> column. In the displayed dialog box, configure index settings and select the current cluster in <span class="parmname" id="EN-US_TOPIC_0000001960517853__parmname14108350011"><b>Cluster</b></span>.</li><li id="EN-US_TOPIC_0000001960517853__li1768211217217">Click <span class="uicontrol" id="EN-US_TOPIC_0000001960517853__uicontrol18857725627"><b>OK</b></span>. When the snapshot's <span class="parmname" id="EN-US_TOPIC_0000001960517853__parmname128571250218"><b>Task Status</b></span> changes to Restoration succeeded, data has been restored successfully.<p id="EN-US_TOPIC_0000001960517853__p2056918461641">If there are multiple snapshots, restore all of them in the right order to restore the data of the deleted cluster.</p>
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</li></ol>
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</li></ol>
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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_02_0147.html">CSS Cluster Backup and Restoration</a></div>
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</div>
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</div>
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