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Wang , Deng Ke
04da47cae2
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Wang , Deng Ke <wangdengke2@huawei.com> Co-committed-by: Wang , Deng Ke <wangdengke2@huawei.com>
24 lines
4.6 KiB
HTML
24 lines
4.6 KiB
HTML
<a name="opengauss_01_0039"></a><a name="opengauss_01_0039"></a>
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<h1 class="topictitle1">Adding Nodes</h1>
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<div id="body1588227558728"><div class="section" id="opengauss_01_0039__section819011511945"><h4 class="sectiontitle">Scenarios</h4><p id="opengauss_01_0039__p18499175820415">As the DB instance deployment time and services increase, the database running performance and storage will gradually reach the bottleneck. For <span id="opengauss_01_0039__text61321275111">GaussDB(openGauss)</span>, you can add nodes to improve the DB instance performance and storage capability.</p>
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<div class="notice" id="opengauss_01_0039__note1612911311507"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="opengauss_01_0039__p171291931125013">The number of CNs of a DB instance must be less than or equal to twice the number of shards.</p>
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<div class="section" id="opengauss_01_0039__section189419392077"><h4 class="sectiontitle"><strong id="opengauss_01_0039__b165371156113820">Procedure</strong></h4><ol id="opengauss_01_0039__ol819317337211"><li id="opengauss_01_0039__li1292214467124"><span>Log in to the management console.</span></li><li id="opengauss_01_0039__li10923134612121"><span>Click <span><img id="opengauss_01_0039__i251621a9ff0c468daf58c21cd2e9afb3" src="en-us_image_0000001072358973.png"></span> in the upper left corner and select a region and a project.</span></li><li id="opengauss_01_0039__li85361458162720"><span>Click <strong id="opengauss_01_0039__afab9a51872a0475eac5831778f04beda">Service List</strong>. Under <strong id="opengauss_01_0039__en-us_topic_0241495502_b155592161758">Database</strong>, click <strong id="opengauss_01_0039__en-us_topic_0241495502_b056012161059">GaussDB</strong>.</span></li><li id="opengauss_01_0039__lb7a94adb746945549de0480d03e6919d"><span>In the navigation pane on the left, choose <strong id="opengauss_01_0039__aac73ac6a5277470ca896f424ceddcc09">GaussDB(openGauss)</strong> > <strong id="opengauss_01_0039__a8989b0cbeb2940689376ccc2b84bc056">Instance Management</strong>.</span></li><li id="opengauss_01_0039__li9780537628"><span>On the <strong id="opengauss_01_0039__b11224105153919">Instance Management</strong> page, click the DB instance for which you want to add nodes.</span></li><li id="opengauss_01_0039__li54941825739"><span>On the <strong id="opengauss_01_0039__b41831515193911">Basic Information</strong> page, add nodes.</span><p><div class="p" id="opengauss_01_0039__p264714384220"><strong id="opengauss_01_0039__b481555533">Adding shards</strong><ol type="a" id="opengauss_01_0039__ol739417369213"><li id="opengauss_01_0039__li2039473612217">Click <strong id="opengauss_01_0039__b15615755132620">Add</strong> next to <strong id="opengauss_01_0039__b106203559265">Shards</strong>.</li><li id="opengauss_01_0039__li1439417361729">Specify the number of shards to be added. Click <span class="uicontrol" id="opengauss_01_0039__uicontrol8394113614218"><b>Next</b></span>.</li><li id="opengauss_01_0039__li1339411361220">Confirm the specifications and fees, and then click <strong id="opengauss_01_0039__b204687351939">Submit</strong>.</li></ol>
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<div class="note" id="opengauss_01_0039__note17912828194514"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="opengauss_01_0039__p129121628114512">A shard contains three DN replicas by default. Therefore, three DN replicas are added each time a shard is added.</p>
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<div class="p" id="opengauss_01_0039__p10474432316"><strong id="opengauss_01_0039__b69762913416">Adding CNs</strong><ol type="a" id="opengauss_01_0039__ol85511431435"><li id="opengauss_01_0039__li0555431635">Click <strong id="opengauss_01_0039__b6505175013316">Add</strong> next to <strong id="opengauss_01_0039__b838055916312">Coordinator Nodes</strong>.</li><li id="opengauss_01_0039__li205594311315">Specify the number of coordinator nodes to be added and the AZ.<p id="opengauss_01_0039__p169411349151411"><a name="opengauss_01_0039__li205594311315"></a><a name="li205594311315"></a>If only one AZ is specified during instance creation, the same AZ must be selected for adding CNs.</p>
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</li><li id="opengauss_01_0039__li155544315312">Click <strong id="opengauss_01_0039__b67201251553">Next</strong>. </li><li id="opengauss_01_0039__li55512431432">Confirm the specifications and click <strong id="opengauss_01_0039__b441014561855">Submit</strong>.</li></ol>
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</div>
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</p></li></ol>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="opengauss_01_0032.html">Instance Management</a></div>
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