forked from docs/doc-exports
Lu, Huayi
95132e24fc
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Reviewed-by: Rechenburg, Matthias <matthias.rechenburg@t-systems.com> Co-authored-by: Lu, Huayi <luhuayi@huawei.com> Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
41 lines
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41 lines
10 KiB
HTML
<a name="EN-US_TOPIC_0000001658895302"></a><a name="EN-US_TOPIC_0000001658895302"></a>
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<h1 class="topictitle1">Cluster Upgrade</h1>
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<div id="body8662426"><p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p740135894020">By default, you do not need to manually upgrade a GaussDB(DWS) cluster. To upgrade a cluster on the console, see <a href="#EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_section1121565214183">Delivering a Cluster Upgrade Task on the Console</a>.</p>
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<p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p8060118">GaussDB(DWS) will notify you of any cluster O&M operation by sending SMS messages. Exercise caution when performing operations on the cluster during the O&M period.</p>
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<p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p417322713614">If the upgrade affects the current query requests or service running, contact technical support for emergency handling.</p>
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<div class="section" id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_section820391923314"><h4 class="sectiontitle">Upgrading a Cluster</h4><p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p4388530815716">By default, you do not need to care about GaussDB(DWS) cluster patching or upgrading because GaussDB(DWS) will handle version upgrade automatically. After GaussDB(DWS) is upgraded, it will automatically upgrade the cluster to the latest version. During the upgrade, the cluster will be restarted and cannot provide services for a short period of time.</p>
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<div class="note" id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_note18499153772516"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_ul161296236210"><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li93591754152114">After a cluster is upgraded to 8.1.3 or later, it enters the observation period. During this period, you can check service status and roll back to the earlier version if necessary.</li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li10249928211">Upgrading the cluster does not affect the original cluster data or specifications.</li></ul>
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</div></div>
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<p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p1448801517493">The following figure shows the cluster version.</p>
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<div class="fignone" id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_fig20809175412226"><span class="figcap"><b>Figure 1 </b>Version description</span><br><span><img id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_image9910157182211" src="figure/en-us_image_0000001711440304.png" title="Click to enlarge" class="imgResize"></span></div>
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<ul id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_ul17243116115012"><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li67071942414"><strong id="EN-US_TOPIC_0000001658895302__b14754131912712">Service patch upgrade</strong>: The last digit of cluster version <em id="EN-US_TOPIC_0000001658895302__i842352697165623_1">X.X.X</em> is changed. For example, the cluster is upgraded from 1.1.0 to 1.1.1.<ul id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_ul3865489315824"><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li1027067015824">Duration: The whole process will take less than 10 minutes.</li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li857124515824">Impact on services: During this period, if the source version is upgraded to 8.1.3 or later, online patching is supported. During the patch upgrade, you do not have to stop services, but the services will be intermittently interrupted for seconds. If the destination version is earlier than 8.1.3, services will be interrupted for 1 to 3 minutes. Therefore, you are advised to perform this operation during off-peak hours.</li></ul>
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</li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li42438160505"><strong id="EN-US_TOPIC_0000001658895302__b33671010911">Service upgrade</strong>: The first two digits of cluster version <em id="EN-US_TOPIC_0000001658895302__i7521510392">X.X.X</em> are changed. For example, the cluster is upgraded from 1.1.0 to 1.2.0.<ul id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_ul5315405915828"><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li1360771515828">Duration: The whole process will take less than 30 minutes.</li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li2543351815828">Impact on services: Online upgrade is supported for update to 8.1.1 or later. During the upgrade, you are not required to stop services, but services are intermittently interrupted for seconds. You are advised to perform the upgrade during off-peak hours.</li></ul>
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</li></ul>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_section1121565214183"><a name="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_section1121565214183"></a><a name="en-us_topic_0000001372520106_section1121565214183"></a><h4 class="sectiontitle">Delivering a Cluster Upgrade Task on the Console</h4><p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p11131205015134"><strong id="EN-US_TOPIC_0000001658895302__b31451057181317">Prerequisites</strong></p>
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<p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p779613354508">For clusters 8.1.1 or later, you need to deliver cluster upgrade operations on the console.</p>
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<p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p1986387191414"><strong id="EN-US_TOPIC_0000001658895302__b682171414143">Procedure</strong></p>
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<ol id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_ol13118795587"><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li122651912132911"><span>Log in to the GaussDB(DWS) console.</span></li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li82652129295"><span>In the cluster list, click the name of a cluster.</span></li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li172656121297"><span>In the navigation pane, choose <strong id="EN-US_TOPIC_0000001658895302__b91370541991">Upgrade Management</strong>.</span></li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li950138145913"><span>On the <strong id="EN-US_TOPIC_0000001658895302__b151647591567">Upgrade Management</strong> page, select a version from the <strong id="EN-US_TOPIC_0000001658895302__b18847161495719">Target Version</strong> drop-down list.</span><p><p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p18858194385911"><span><img id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_image4247420152319" src="figure/en-us_image_0000001711599804.png" title="Click to enlarge" class="imgResize"></span></p>
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</p></li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li1287616571348"><span>Click <strong id="EN-US_TOPIC_0000001658895302__b17926103516015">Upgrade</strong>. Click <strong id="EN-US_TOPIC_0000001658895302__b422754418011">OK</strong> in the displayed dialog box.</span><p><p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p1831416494354"><span><img id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_image128218183014" src="figure/en-us_image_0000001759519205.png" title="Click to enlarge" class="imgResize"></span></p>
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</p></li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li19138316129"><span>Check whether the cluster is successfully upgraded.</span><p><ul id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_ul13715161412128"><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li621425841619">If the cluster version is 8.1.3 or later, the cluster enters the service observation period after the upgrade is complete. If you have verified your services, click <strong id="EN-US_TOPIC_0000001658895302__b98761011184">Submit</strong> on the <strong id="EN-US_TOPIC_0000001658895302__b67251241387">Upgrade Management</strong> page to complete the cluster upgrade. If you find your cluster performance affected by the upgrade, you can click <strong id="EN-US_TOPIC_0000001658895302__b167131427984">Rollback</strong> to roll back the upgrade.<div class="note" id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_note15204165891614"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_ul88171433193012"><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li8381115215304">In versions earlier than 8.1.3, there is neither rollback nor submission button after the upgrade is complete.</li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li418484314299">If you do not submit the upgraded version, there will be a <strong id="EN-US_TOPIC_0000001658895302__b21016128364334">wlm</strong> thread which occupies the system storage space and affects the performance.</li></ul>
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</div></div>
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<p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p86014186121"><span><img id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_image12934661198" src="figure/en-us_image_0000001759359337.png" title="Click to enlarge" class="imgResize"></span></p>
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</li><li id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_li77151614161217">If the cluster upgrade fails, click <strong id="EN-US_TOPIC_0000001658895302__b1416492413919">Rollback</strong> to roll back to the original cluster version, or click <strong id="EN-US_TOPIC_0000001658895302__b19577291197">Retry</strong> to deliver the upgrade again.<p id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_p11524182181220"><span><img id="EN-US_TOPIC_0000001658895302__en-us_topic_0000001372520106_image4982229153315" src="figure/en-us_image_0000001711440308.png" title="Click to enlarge" class="imgResize"></span></p>
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</li></ul>
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</p></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="dws_01_0600.html">Cluster Management</a></div>
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</div>
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</div>
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