forked from docs/doc-exports
Lu, Huayi
c5fcb46315
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Lu, Huayi <luhuayi@huawei.com> Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
36 lines
6.6 KiB
HTML
36 lines
6.6 KiB
HTML
<a name="EN-US_TOPIC_0000001134560606"></a><a name="EN-US_TOPIC_0000001134560606"></a>
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<h1 class="topictitle1">Cluster Overview</h1>
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<div id="body8662426"><div class="section" id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_section3960135142513"><h4 class="sectiontitle">Cluster Overview</h4><ol id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_o4d27c72c9c5b483283c532fd703af879"><li id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_l3bf4b8bc45d343b6aec0b48be7dfc1aa"><span>Log in to the GaussDB(DWS) management console.</span></li><li id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_li11952509114244"><span>On the <span class="uicontrol" id="EN-US_TOPIC_0000001134560606__uicontrol11222797241014"><b>Clusters</b></span> page, locate the target cluster.</span></li><li id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_li8798326172918"><span>In the <strong id="EN-US_TOPIC_0000001134560606__b177592955841014">Operation</strong> column of the target cluster, click <strong id="EN-US_TOPIC_0000001134560606__b2820549941014">Monitoring Panel</strong>. The database monitoring page is displayed.</span></li><li id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_li32311493910"><span>In the navigation pane on the left, click <strong id="EN-US_TOPIC_0000001134560606__b1635119231621">Cluster Overview</strong>.</span><p><p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p61281626122220">On the page that is displayed, you can view the cluster status, real-time resource consumption, top SQL statements, cluster resource consumption, and key database metrics.</p>
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</p></li></ol>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_section640611565244"><h4 class="sectiontitle">Cluster Status</h4><p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p6765322135216">In the <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b1961612314104">Cluster Status</strong> area, you can view the status of the current cluster and the number of available resources, including the numbers of nodes, CNs, and databases.</p>
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<p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p12165137811"><span><img id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_image1096912131199" src="figure/en-us_image_0000001180320467.png" width="421.9425" height="190.05567000000002" title="Click to enlarge" class="imgResize"></span></p>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_section11820721193713"><h4 class="sectiontitle">Resource Consumption</h4><p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p169219520540">In <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b247395535614">Resource Consumption</strong>, you can view the real-time resource consumption of the current cluster, including <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b4669915185719">Memory Usage</strong>, <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b1771221813577">Disk Usage</strong>, <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b78347225576">CPU Usage</strong>, <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b15769202575719">Disk I/O (KB/s)</strong>, and <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b1034613327576">Network I/O (KB/s)</strong>.</p>
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<p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p79420394373"><span><img id="EN-US_TOPIC_0000001134560606__image1391820247" src="figure/en-us_image_0000001180440403.png" width="498.75" height="224.66187100000002" title="Click to enlarge" class="imgResize"></span></p>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_section20821161416386"><h4 class="sectiontitle">TOP SQL</h4><p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p182956415588">In the <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b11465162121220">TOP SQL</strong> area, you can query the SQL statements that take the longest time and have the largest amount of data flushed to disks in the current cluster.</p>
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<p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p13945164120432"></p>
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<p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p18121103110105"><span><img id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_image15561133271012" src="figure/en-us_image_0000001180440401.png" width="463.83750000000003" height="69.645317" title="Click to enlarge" class="imgResize"></span></p>
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<div class="note" id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_note673633183611"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p29271356183614">Top 5 SQL statement query is implemented by <strong id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_b16588153414410">max_ctime</strong>, which displays the query duration and the amount of data written to disks in the current collection period. If no query is executed during off-peak hours, the top 5 time-consuming query page will not be refreshed.</p>
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</div></div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_section134244517473"><h4 class="sectiontitle">Key Metrics</h4><p id="EN-US_TOPIC_0000001134560606__en-us_topic_0000001076801499_p64580343418">On the <strong id="EN-US_TOPIC_0000001134560606__b4839162106">Cluster Overview</strong> page, you can also view the database metrics of the current cluster, including <strong id="EN-US_TOPIC_0000001134560606__b82701232151016">Sessions</strong> and <strong id="EN-US_TOPIC_0000001134560606__b1214873414103">Queries</strong>.</p>
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<p id="EN-US_TOPIC_0000001134560606__p6956153917485"><span><img id="EN-US_TOPIC_0000001134560606__image895911399484" src="figure/en-us_image_0000001152748072.png" width="431.9175" height="164.979451" title="Click to enlarge" class="imgResize"></span></p>
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<p id="EN-US_TOPIC_0000001134560606__p15299192884913"><span><img id="EN-US_TOPIC_0000001134560606__image930012285496" src="figure/en-us_image_0000001152588340.png" width="411.96750000000003" height="161.575981" title="Click to enlarge" class="imgResize"></span></p>
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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_00014.html">Databases Monitoring</a></div>
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</div>
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</div>
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