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Yang, Tong
3b1f73dece
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
75 lines
11 KiB
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75 lines
11 KiB
HTML
<a name="ALM-44005"></a><a name="ALM-44005"></a>
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<h1 class="topictitle1">ALM-44005 Presto Coordinator Process GC Time Exceeds the Threshold</h1>
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<div id="body1597222804747"><div class="section" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_section43920869"><h4 class="sectiontitle">Description</h4><p id="ALM-44005__en-us_topic_0225312712_p17916125914293">The system collects GC time of the Presto Coordinator process every 30 seconds. This alarm is generated when the GC time exceeds the threshold (exceeds 5 seconds for three consecutive times). You can change the threshold by choosing <strong id="ALM-44005__b18342145917299">System</strong> > <strong id="ALM-44005__b1134295932910">Configure Alarm Threshold</strong> > <strong id="ALM-44005__b63432590292">Service</strong> > <strong id="ALM-44005__b234345922916">Presto</strong> > <strong id="ALM-44005__b434385982917">Coordinator</strong> > <strong id="ALM-44005__b16344125902916">Presto Process Garbage Collection Time</strong> > <strong id="ALM-44005__b18344559142912">Garbage Collection Time of the Coordinator Process</strong> on MRS Manager. This alarm is cleared when the Coordinator process GC time is less than or equal to the threshold.</p>
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</div>
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<div class="section" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_section59743502"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_table64843092" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_row10409628"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p37873528">Alarm ID</p>
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<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.2"><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p47856888">Alarm Severity</p>
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<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.3"><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p51202692">Auto Clear</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_row53777413"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p61003235">44005</p>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.2 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p42315013">Major</p>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.3 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p4964052">Yes</p>
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</tbody>
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</table>
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</div>
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<div class="section" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_section820607"><h4 class="sectiontitle">Parameter</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_table66543927" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_row61284534"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p65100236">Parameter</p>
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<th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.2"><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p38627770">Description</p>
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</thead>
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<tbody><tr id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_row41841705"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p33734977">ServiceName</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p48178601">Service for which the alarm is generated.</p>
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<tr id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_row30954226"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p24264406">RoleName</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p19259870">Role for which the alarm is generated.</p>
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</td>
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<tr id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_row39121107"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p14693133">HostName</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p49293152">Host for which the alarm is generated.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div class="section" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_section7385465"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-44005__en-us_topic_0225312712_p64414474151214">If the GC time of the Coordinator process is too long, the Coordinator process running performance will be affected and the Coordinator process will even be unavailable.</p>
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</div>
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<div class="section" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_section66469189"><h4 class="sectiontitle">Possible Causes</h4><p id="ALM-44005__en-us_topic_0225312712_p11409216322">The heap memory of the Coordinator process is overused or inappropriately allocated, causing frequent occurrence of the GC process.</p>
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</div>
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<div class="section" id="ALM-44005__section117792012205519"><h4 class="sectiontitle">Procedure</h4><ol id="ALM-44005__en-us_topic_0225312712_ol41220546282"><li id="ALM-44005__en-us_topic_0225312712_li47751305175629"><span>Check the GC time.</span><p><ol type="a" id="ALM-44005__en-us_topic_0225312712_ol17980506181612"><li id="ALM-44005__en-us_topic_0225312712_li1487713813414">Go to the cluster details page and choose <strong id="ALM-44005__b162949766133428">Alarms</strong>.<div class="note" id="ALM-44005__note492152111413"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="ALM-44005__p2931521141">For MRS 1.8.10 or earlier, log in to MRS Manager and choose <strong id="ALM-44005__b124519185329">Alarms</strong>.</p>
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</div></div>
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</li><li id="ALM-44005__en-us_topic_0225312712_li58727490181612">Select the alarm whose <strong id="ALM-44005__b186176503433428">Alarm ID</strong> is <strong id="ALM-44005__b182875086833428">44005</strong> and then check the role name in <strong id="ALM-44005__b14790172183618">Location </strong>and confirm the IP adress of the instance.</li><li id="ALM-44005__en-us_topic_0225312712_li37461388181615">Choose <strong id="ALM-44005__b36703090833428">Components</strong> > <strong id="ALM-44005__b87428569433428">Presto</strong> > <strong id="ALM-44005__b111068031633428">Instances</strong> > <strong id="ALM-44005__b161296420133428">Coordinator</strong> (business IP address of the instance for which the alarm is generated) > <strong id="ALM-44005__b198430630733428">Customize</strong> > <strong id="ALM-44005__b64338107133428">Presto Garbage Collection Time</strong>. Click <strong id="ALM-44005__b38326433833428">OK</strong> to view the GC time.</li><li id="ALM-44005__en-us_topic_0225312712_li5803814181617">Check whether the GC time of the Coordinator process is longer than 5 seconds.<ul id="ALM-44005__en-us_topic_0225312712_ul2889331181625"><li id="ALM-44005__en-us_topic_0225312712_li5345176181624">If yes, go to <a href="#ALM-44005__en-us_topic_0225312712_li1011493181634">1.e</a>.</li><li id="ALM-44005__en-us_topic_0225312712_li14368473181624">If no, go to <a href="#ALM-44005__en-us_topic_0225312712_li572522141314">2</a>.</li></ul>
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</li><li id="ALM-44005__en-us_topic_0225312712_li1011493181634"><a name="ALM-44005__en-us_topic_0225312712_li1011493181634"></a><a name="en-us_topic_0225312712_li1011493181634"></a>Choose <strong id="ALM-44005__b127407688533428">Components</strong> > <strong id="ALM-44005__b85373670333428">Presto</strong> > <strong id="ALM-44005__b93549628233428">Service Configuration</strong>, and switch <strong id="ALM-44005__b153920336333428">Basic</strong> to <strong id="ALM-44005__b38516197533428">All</strong>. Choose <strong id="ALM-44005__b86960379433428">Presto</strong> > <strong id="ALM-44005__b27517482433428">Coordinator</strong>. Increase the value of <strong id="ALM-44005__b177231117033428">-Xmx</strong> (maximum heap memory) in the <strong id="ALM-44005__b109660879233428">JAVA_OPTS</strong> parameter based on the site requirements.</li><li id="ALM-44005__en-us_topic_0225312712_li11969688181637">Check whether the alarm is cleared.<ul id="ALM-44005__en-us_topic_0225312712_ul51315766181641"><li id="ALM-44005__en-us_topic_0225312712_li54070239181641">If yes, no further action is required.</li><li id="ALM-44005__en-us_topic_0225312712_li17383192181641">If no, go to <a href="#ALM-44005__en-us_topic_0225312712_li572522141314">2</a>.</li></ul>
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</li></ol>
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</p></li><li id="ALM-44005__en-us_topic_0225312712_li572522141314"><a name="ALM-44005__en-us_topic_0225312712_li572522141314"></a><a name="en-us_topic_0225312712_li572522141314"></a><span>Collect fault information.</span><p><ol type="a" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0191813935_ol6089206913036"><li id="ALM-44005__en-us_topic_0225312712_en-us_topic_0191813935_li4478836213036">On MRS Manager, choose <span class="menucascade" id="ALM-44005__menucascade134029779833428"><b><span class="uicontrol" id="ALM-44005__uicontrol183524056933428">System</span></b> > <b><span class="uicontrol" id="ALM-44005__uicontrol196302240133428">Export Log</span></b></span>.</li><li id="ALM-44005__li18574327401">Call the OTC Customer Hotline for support.<p id="ALM-44005__zh-cn_topic_0225312712_zh-cn_topic_0191813935_p1241007591725"><a name="ALM-44005__li18574327401"></a><a name="li18574327401"></a>Germany: 0800 330 44 44</p>
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<p id="ALM-44005__zh-cn_topic_0225312712_zh-cn_topic_0191813935_p4458181891725">International: +800 44556600</p>
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</li></ol>
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</p></li></ol>
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</div>
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<div class="section" id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_section15295265"><h4 class="sectiontitle">Reference</h4><p id="ALM-44005__en-us_topic_0225312712_en-us_topic_0087039425_p7510612">None</p>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_1298.html">Alarm Reference (Applicable to MRS 3.x)</a></div>
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