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luhuayi
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Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: luhuayi <luhuayi@huawei.com> Co-committed-by: luhuayi <luhuayi@huawei.com>
42 lines
9.5 KiB
HTML
42 lines
9.5 KiB
HTML
<a name="EN-US_TOPIC_0000001924569364"></a><a name="EN-US_TOPIC_0000001924569364"></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_0000001924569364__en-us_topic_0000001076801499_section3960135142513"><h4 class="sectiontitle">Cluster Overview</h4><ol id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_o4d27c72c9c5b483283c532fd703af879"><li id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_l3bf4b8bc45d343b6aec0b48be7dfc1aa"><span>Log in to the GaussDB(DWS) console.</span></li><li id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_li11952509114244"><span>On the <strong id="EN-US_TOPIC_0000001924569364__b193821054105318">Clusters</strong> > <strong id="EN-US_TOPIC_0000001924569364__b1838218547539">Dedicated Clusters<span id="EN-US_TOPIC_0000001924569364__text6382154185318"></span></strong> page, locate the cluster to be monitored.</span></li><li id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_li8798326172918"><span>In the <strong id="EN-US_TOPIC_0000001924569364__b866965617308">Operation</strong> column of the target cluster, click <strong id="EN-US_TOPIC_0000001924569364__b1466925612301">Monitoring Panel</strong>. The database monitoring page is displayed.</span></li><li id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_li32311493910"><span>In the navigation pane on the left, click <strong id="EN-US_TOPIC_0000001924569364__b1635119231621">Cluster Overview</strong>.</span><p><p id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_p61281626122220">On the page that is displayed, you can view the cluster status, real-time resource consumption, cluster resource consumption, and key database metrics.</p>
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</p></li></ol>
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<div class="note" id="EN-US_TOPIC_0000001924569364__note91539293499"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001924569364__p115615274411">Metrics can be collected and displayed on the cluster overview page only if their collection items are enabled. If a collection item is disabled, its metric will not be displayed, and a prompt will be displayed indicating this problem. In this case, you are advised to enable the collection item.</p>
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</div></div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_section640611565244"><h4 class="sectiontitle">Cluster Status</h4><p id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_p6765322135216">In the <strong id="EN-US_TOPIC_0000001924569364__b19232134414911">Cluster Status</strong> area, you can view the statistics about the current cluster status and instance status, including cluster statistics in the last 24 hours, cluster specifications, available/total CNs and DNs, used/total disk capacity, the number of CCN switchovers in the last 24 hours, and the number of primary/standby DN switchovers in the last 24 hours.</p>
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<div class="fignone" id="EN-US_TOPIC_0000001924569364__fig45781612134111"><span class="figcap"><b>Figure 1 </b>Cluster Status</span><br><span><img id="EN-US_TOPIC_0000001924569364__image17113192017492" src="figure/en-us_image_0000001952008565.png" width="449.727929" height="160.846875" title="Click to enlarge" class="imgResize"></span></div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_section11820721193713"><h4 class="sectiontitle">Alarms</h4><p id="EN-US_TOPIC_0000001924569364__en-us_topic_0000001076801499_p169219520540">In the <strong id="EN-US_TOPIC_0000001924569364__b13528541135211">Alarms</strong> area, you can view all the uncleared alarms of the current cluster and the alarms generated in the last seven days. You can click <strong id="EN-US_TOPIC_0000001924569364__b970865315">More</strong> in the upper right corner to view details about the existing cluster alarms. For details, see <a href="dws_01_1240.html">Alarms</a>.</p>
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<div class="fignone" id="EN-US_TOPIC_0000001924569364__fig1041014204415"><span class="figcap"><b>Figure 2 </b>Alarms</span><br><span><img id="EN-US_TOPIC_0000001924569364__image83401712506" src="figure/en-us_image_0000001924569720.png" width="364.415744" height="122.498985" title="Click to enlarge" class="imgResize"></span></div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001924569364__section962416042215"><h4 class="sectiontitle">Cluster Resources</h4><p id="EN-US_TOPIC_0000001924569364__p0731347478">In the <strong id="EN-US_TOPIC_0000001924569364__b17403222154714">Cluster Resources</strong> area, you can view the resource usage of the current cluster, including the average CPU usage, disk I/O, disk usage, memory usage, and network I/O. You can click the metric of a resource to view its trend in the last 24 hours and the top five services that are occupying this resource. You can click <strong id="EN-US_TOPIC_0000001924569364__b895115434545">More</strong> in the upper right corner of the area to go to the <strong id="EN-US_TOPIC_0000001924569364__b48316189558">Node Monitoring</strong> page. Nodes are sorted by the metric value. For details, see <a href="dws_01_1331.html">Node Monitoring</a>.</p>
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<div class="fignone" id="EN-US_TOPIC_0000001924569364__fig1837816320375"><span class="figcap"><b>Figure 3 </b>Cluster Resources</span><br><span><img id="EN-US_TOPIC_0000001924569364__image1324215414400" src="figure/en-us_image_0000001952008561.png" width="459.60810000000004" height="234.01443100000003" title="Click to enlarge" class="imgResize"></span></div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001924569364__section149181424173718"><h4 class="sectiontitle">Workloads</h4><p id="EN-US_TOPIC_0000001924569364__p1689543103713">In the <strong id="EN-US_TOPIC_0000001924569364__b83715250473">Workloads</strong> area, you can view the workload metrics of the current database, including TPS, QPS, stacked SQL queries, and resource pools. You can also click a workload metric to view its trend in the last 24 hours. The <strong id="EN-US_TOPIC_0000001924569364__b1096292211255">SQL Stack Queries</strong> metric depends on the real-time query monitoring function. If this function is disabled, no data will be displayed for the metrics.</p>
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<div class="fignone" id="EN-US_TOPIC_0000001924569364__fig4613162924115"><span class="figcap"><b>Figure 4 </b>Workloads</span><br><span><img id="EN-US_TOPIC_0000001924569364__image2944164510412" src="figure/en-us_image_0000001924569724.png" width="417.193336" height="217.721266" title="Click to enlarge" class="imgResize"></span></div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001924569364__section20402934113913"><h4 class="sectiontitle">Data Volume</h4><p id="EN-US_TOPIC_0000001924569364__p1549814378395">In the <strong id="EN-US_TOPIC_0000001924569364__b16331434105613">Data Volume</strong> area, you can view the used capacity of the current database and schema. You can click a capacity metric to view the database or schema capacity trend in the last 24 hours and the top five databases or schemas ranked by capacity usage in the current cluster. You can click <strong id="EN-US_TOPIC_0000001924569364__b20667274580">More</strong> in the upper right corner of the area to go to the <strong id="EN-US_TOPIC_0000001924569364__b44531912195918">Database Monitoring</strong> page. Databases are sorted by used capacity. For details, see <a href="dws_01_1332.html">Database Monitoring</a>.</p>
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<div class="fignone" id="EN-US_TOPIC_0000001924569364__fig9139153514415"><span class="figcap"><b>Figure 5 </b>Data Volume</span><br><span><img id="EN-US_TOPIC_0000001924569364__image1272021125210" src="figure/en-us_image_0000001951848793.png" width="474.94167" height="240.27580500000002" title="Click to enlarge" class="imgResize"></span></div>
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<div class="note" id="EN-US_TOPIC_0000001924569364__note1460071816343"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001924569364__p19600191816349">The database capacity data is collected once a day. Therefore, the data volume fluctuates greatly. To view real-time capacity monitoring information, choose <strong id="EN-US_TOPIC_0000001924569364__b135141055121719">Node Monitoring</strong> > <strong id="EN-US_TOPIC_0000001924569364__b3514185581719">Disks</strong>.</p>
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</div></div>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001924569364__section111383118466"><h4 class="sectiontitle">Queries</h4><p id="EN-US_TOPIC_0000001924569364__p16885658185411">In the <strong id="EN-US_TOPIC_0000001924569364__b178161227144711">Queries</strong> area, you can check the average number of queries, sessions, and transactions. You can click a metric to view its trend in the last 24 hours. The <strong id="EN-US_TOPIC_0000001924569364__b10613172495017">Average Queries</strong> and <strong id="EN-US_TOPIC_0000001924569364__b1338317319506">Average Sessions</strong> metrics depend on the real-time query monitoring function. If this function is disabled, no data will be displayed for the metrics.</p>
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<div class="fignone" id="EN-US_TOPIC_0000001924569364__fig147320488418"><span class="figcap"><b>Figure 6 </b>Queries</span><br><span><img id="EN-US_TOPIC_0000001924569364__image837474168" src="figure/en-us_image_0000001951848785.png" width="518.7" height="264.1646" title="Click to enlarge" class="imgResize"></span></div>
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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 (DMS)</a></div>
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</div>
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</div>
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