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Yang, Tong
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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>
86 lines
10 KiB
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86 lines
10 KiB
HTML
<a name="ALM-45287"></a><a name="ALM-45287"></a>
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<h1 class="topictitle1">ALM-45287 TagSync Non Heap Memory Usage Exceeds the Threshold</h1>
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<div id="body1605097613349"><div class="section" id="ALM-45287__section26053439"><h4 class="sectiontitle">Description</h4><p id="ALM-45287__p13084344">The system checks the non-heap memory usage of the TagSync service every 60 seconds. This alarm is generated when the non-heap memory usage of the TagSync instance exceeds the threshold (80% of the maximum memory) for five consecutive times. This alarm is cleared when the non-heap memory usage is less than the threshold.</p>
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<div class="section" id="ALM-45287__section33154367"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-45287__table53198919" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-45287__row62016895"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-45287__p57312624">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-45287__p11811006">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-45287__p17167440">Auto Clear</p>
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<tbody><tr id="ALM-45287__row48385423"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-45287__p26905186">45287</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-45287__p31836466">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-45287__p28616934">Yes</p>
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<div class="section" id="ALM-45287__section29953848"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-45287__table36270311" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-45287__row13312348"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-45287__p4558436">Name</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-45287__p33689020">Meaning</p>
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<tbody><tr id="ALM-45287__row1348133541510"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45287__p13858113752316">Source</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-45287__p187931338134115">Specifies the cluster for which the alarm is generated.</p>
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<tr id="ALM-45287__row44456076"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45287__p39123317">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-45287__p21195702">Specifies the service for which the alarm is generated.</p>
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<tr id="ALM-45287__row56543598"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45287__p37226997">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-45287__p4748349">Specifies the role for which the alarm is generated.</p>
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<tr id="ALM-45287__row42735142"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45287__p66118565">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-45287__p4433805">Specifies the host for which the alarm is generated.</p>
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<tr id="ALM-45287__row75609255517"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45287__p15179191519371">Trigger Condition</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-45287__p1517911153376">Specifies the threshold for triggering the alarm.</p>
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<div class="section" id="ALM-45287__section1149181"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-45287__p17475349">Non-heap memory overflow may cause service breakdown.</p>
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<div class="section" id="ALM-45287__section10342629"><h4 class="sectiontitle">Possible Causes</h4><p id="ALM-45287__p6217170">The non-heap memory of the TagSync process is overused or the non-heap memory is inappropriately allocated.</p>
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<div class="section" id="ALM-45287__section1086918425186"><h4 class="sectiontitle">Procedure</h4><p id="ALM-45287__p33828780"><strong id="ALM-45287__b19734132011134">Check non-heap memory usage.</strong></p>
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<ol id="ALM-45287__ol36023567"><li id="ALM-45287__li55776650"><span>On FusionInsight Manager, choose <strong id="ALM-45287__b1416742310138">O&M</strong> > <strong id="ALM-45287__b216792321318">Alarm </strong>> <strong id="ALM-45287__b4168172317131">Alarms </strong>> <strong id="ALM-45287__b14168623141314">ALM-45287 TagSync Non Heap Memory Usage Exceeds the Threshold</strong>. Check the location information of the alarm and view the host name of the instance for which the alarm is generated.</span></li><li id="ALM-45287__li32227806"><span>On FusionInsight Manager, choose <strong id="ALM-45287__b12888105961312">Cluster </strong>> <strong id="ALM-45287__b789313594138">Services </strong>> <strong id="ALM-45287__b1189312595134">Ranger </strong>> <strong id="ALM-45287__b128935596135">Instance</strong>. Select the role corresponding to the host name of the instance for which the alarm is generated. Click the drop-down list in the upper right corner of the chart area and choose <strong id="ALM-45287__b17894155912132">Customize </strong>> <strong id="ALM-45287__b1889465911137">CPU and Memory</strong> > <strong id="ALM-45287__b1989405919139">TagSync Non Heap Memory Usage</strong>. Click <strong id="ALM-45287__b1689535912136">OK</strong>.</span></li><li id="ALM-45287__li21614805"><span>Check whether the non-heap memory used by TagSync reaches the threshold (80% of the maximum non-heap memory by default).</span><p><ul id="ALM-45287__ul60315518"><li id="ALM-45287__li5968756">If yes, go to <a href="#ALM-45287__li29985659161559">4</a>.</li><li id="ALM-45287__li13707216">If no, go to <a href="#ALM-45287__d0e44186">6</a>.</li></ul>
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</p></li><li id="ALM-45287__li29985659161559"><a name="ALM-45287__li29985659161559"></a><a name="li29985659161559"></a><span>On FusionInsight Manager, choose <strong id="ALM-45287__b12962102716148">Cluster </strong>> <strong id="ALM-45287__b10963182771416">Services </strong>> <strong id="ALM-45287__b096317270141">Ranger </strong>> <strong id="ALM-45287__b1396442751417">Instance </strong>> <strong id="ALM-45287__b19641127141413">TagSync </strong>> <strong id="ALM-45287__b17964192713145">Instance Configuration</strong>. Click <strong id="ALM-45287__b99652027171412">All Configurations</strong> and choose <strong id="ALM-45287__b896572781414">TagSync </strong>> <strong id="ALM-45287__b996582791419">System</strong>. Set <strong id="ALM-45287__b1147133210144">-XX: MaxPermSize</strong> in the <strong id="ALM-45287__b1847132101417">GC_OPTS</strong> parameter to a larger value based on site requirements and save the configuration.</span><p><div class="note" id="ALM-45287__note1572143455414"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="ALM-45287__p65732349545">If this alarm is generated, the non-heap memory size configured for the TagSync instance cannot meet the non-heap memory required by the TagSync process. You are advised to change the <strong id="ALM-45287__b044495014619">-XX:MaxPermSize</strong> value of <strong id="ALM-45287__b1488873818465">GC_OPTS</strong> to twice that of the current non-heap memory size or change the value based on the site requirements.</p>
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</div></div>
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</p></li><li id="ALM-45287__li60448593"><span>Restart the affected services or instances and check whether the alarm is cleared.</span><p><ul id="ALM-45287__ul7166428"><li id="ALM-45287__li64497859">If yes, no further action is required.</li><li id="ALM-45287__li43609821">If no, go to <a href="#ALM-45287__d0e44186">6</a>.</li></ul>
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</p></li></ol>
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<p id="ALM-45287__p42734651"><strong id="ALM-45287__b36366128112920">Collect the fault information.</strong></p>
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<ol start="6" id="ALM-45287__ol15264135112926"><li id="ALM-45287__d0e44186"><a name="ALM-45287__d0e44186"></a><a name="d0e44186"></a><span>On FusionInsight Manager, choose <strong id="ALM-45287__b122746293326">O&M</strong>. In the navigation pane on the left, choose <strong id="ALM-45287__b11275929133218">Log</strong> > <strong id="ALM-45287__b02766298325">Download</strong>.</span></li><li id="ALM-45287__li15048140"><span>Expand the <strong id="ALM-45287__b50600615832348">Service</strong> drop-down list, and select <strong id="ALM-45287__b90568020332348">Ranger</strong> for the target cluster.</span></li><li id="ALM-45287__li1215532"><span>Click <span><img id="ALM-45287__image104601319175315" src="en-us_image_0293269047.png"></span> in the upper right corner, and set <strong id="ALM-45287__b14312171211713">Start Date</strong> and <strong id="ALM-45287__b1312171211712">End Date</strong> for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-45287__b231317122178">Download</strong>.</span></li><li id="ALM-45287__li10939791"><span>Contact <span id="ALM-45287__text126301214142412">O&M personnel</span> and provide the collected logs.</span></li></ol>
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<div class="section" id="ALM-45287__section169311343318"><h4 class="sectiontitle">Alarm Clearing</h4><p id="ALM-45287__p754913417333">This alarm is automatically cleared after the fault is rectified.</p>
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<div class="section" id="ALM-45287__section53362350"><h4 class="sectiontitle">Related Information</h4><p id="ALM-45287__p7522741">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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