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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>
87 lines
12 KiB
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87 lines
12 KiB
HTML
<a name="ALM-17004"></a><a name="ALM-17004"></a>
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<h1 class="topictitle1">ALM-17004 Oozie Heap Memory Usage Exceeds the Threshold</h1>
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<div id="body62194733"><div class="section" id="ALM-17004__s406d4c6520d5479e944c22c9aa8ddb10"><h4 class="sectiontitle">Description</h4><p id="ALM-17004__en-us_topic_0070543677_p54990119">The system checks the heap memory usage of the Oozie service every 60 seconds. The alarm is generated when the heap memory usage of a Metadata instance exceeds the threshold (95% of the maximum memory). The alarm is cleared when the heap memory usage is less than the threshold.</p>
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<div class="section" id="ALM-17004__sad6c80f493974bd593478951eb5b4b5e"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-17004__en-us_topic_0070543677_table25014667" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-17004__en-us_topic_0070543677_row23474744"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-17004__en-us_topic_0070543677_p22406093">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-17004__en-us_topic_0070543677_p2954259">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-17004__en-us_topic_0070543677_p37968433">Automatically Cleared</p>
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<tbody><tr id="ALM-17004__en-us_topic_0070543677_row55544272"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-17004__en-us_topic_0070543677_p2792216">17004</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-17004__en-us_topic_0070543677_p24842928">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-17004__en-us_topic_0070543677_p66120128">Yes</p>
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</table>
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<div class="section" id="ALM-17004__s0b157d779ad547bcbf33b4cc2b366965"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-17004__en-us_topic_0070543677_table54130161" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-17004__en-us_topic_0070543677_row3823995"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-17004__en-us_topic_0070543677_p41308177">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-17004__en-us_topic_0070543677_p57628011">Meaning</p>
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<tbody><tr id="ALM-17004__row81082146249"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-17004__p192431315431">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-17004__p692551319435">Specifies the cluster for which the alarm is generated.</p>
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<tr id="ALM-17004__en-us_topic_0070543677_row37357297"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-17004__en-us_topic_0070543677_p6042253">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-17004__en-us_topic_0070543677_p19660452">Specifies the service for which the alarm is generated.</p>
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<tr id="ALM-17004__en-us_topic_0070543677_row42726346"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-17004__en-us_topic_0070543677_p38282024">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-17004__en-us_topic_0070543677_p13836214">Specifies the role for which the alarm is generated.</p>
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<tr id="ALM-17004__en-us_topic_0070543677_row57417062"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-17004__en-us_topic_0070543677_p20270464">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-17004__en-us_topic_0070543677_p31294878">Specifies the host for which the alarm is generated.</p>
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<tr id="ALM-17004__en-us_topic_0070543677_row13218450"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-17004__en-us_topic_0070543677_p64061554">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-17004__en-us_topic_0070543677_p21603403">Specifies the threshold triggering the alarm. If the current indicator value exceeds this threshold, the alarm is generated.</p>
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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-17004__sa214370e98e340368d6f795188ec4544"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-17004__en-us_topic_0070543677_p5045188">The heap memory overflow may cause a service breakdown.</p>
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</div>
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<div class="section" id="ALM-17004__sc897637eb647475b9e76bf39a9ee618a"><h4 class="sectiontitle">Possible Causes</h4><p id="ALM-17004__en-us_topic_0070543677_p6007045">The heap memory of the Oozie instance is overused or the heap memory is inappropriately allocated.</p>
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</div>
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<div class="section" id="ALM-17004__s94630a78409f4eb9ba8f64dff9bc5a6a"><h4 class="sectiontitle">Procedure</h4><p id="ALM-17004__en-us_topic_0070543677_p16808631"><strong id="ALM-17004__b46558258173715">Check heap memory usage.</strong></p>
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<ol id="ALM-17004__en-us_topic_0070543677_ol17059953"><li id="ALM-17004__en-us_topic_0070543677_li19321857"><span>On the FusionInsight Manager portal, choose <strong id="ALM-17004__en-us_topic_0070543677_b39678991">O&M > Alarm</strong> <strong id="ALM-17004__b206091447161819">> Alarms</strong> > <strong id="ALM-17004__en-us_topic_0070543677_b21566604">Oozie Heap Memory Usage Exceeds the Threshold</strong> > <strong id="ALM-17004__en-us_topic_0070543677_b59881713">Location</strong>. Check the IP address of the instance involved in this alarm.</span></li><li id="ALM-17004__en-us_topic_0070543677_li2064512"><span>On the FusionInsight Manager portal, choose<strong id="ALM-17004__b1967224520363"> Cluster > </strong><em id="ALM-17004__i13674114511361">Name of the desired cluster</em> > <strong id="ALM-17004__b4692965417821">Services</strong> > <strong id="ALM-17004__b1971370417821">Oozie</strong> > <strong id="ALM-17004__b4320561417821">Instance</strong>. Click the instance for which the alarm is generated to go to the page for the instance. Click the drop-down menu in the chart<strong id="ALM-17004__b584112589713"> </strong>area and choose<strong id="ALM-17004__b103301018101217"> Customize</strong> > <strong id="ALM-17004__b1668141513312">Memory</strong> > <strong id="ALM-17004__en-us_topic_0070543677_b3530205">Oozie Heap Memory Resource Percentage</strong>. Click <strong id="ALM-17004__b8983203712228">OK</strong>.</span></li><li id="ALM-17004__en-us_topic_0070543677_li31771847"><span>Check whether the used heap memory of Oozie reaches the threshold (the default value is 95% of the maximum heap memory) specified for Oozie.</span><p><ul id="ALM-17004__en-us_topic_0070543677_ul17511170"><li id="ALM-17004__en-us_topic_0070543677_li23382808">If yes, go to <a href="#ALM-17004__en-us_topic_0070543677_d0e31653">4</a>.</li><li id="ALM-17004__en-us_topic_0070543677_li14959261">If no, go to <a href="#ALM-17004__en-us_topic_0070543677_d0e31704">6</a>.</li></ul>
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</p></li><li id="ALM-17004__en-us_topic_0070543677_d0e31653"><a name="ALM-17004__en-us_topic_0070543677_d0e31653"></a><a name="en-us_topic_0070543677_d0e31653"></a><span>On the FusionInsight Manager portal, choose <strong id="ALM-17004__b442345318368">Cluster > </strong><em id="ALM-17004__i442495319369">Name of the desired cluster</em> > <strong id="ALM-17004__b77641497331">Services</strong> > <strong id="ALM-17004__en-us_topic_0070543677_b34553701">Oozie</strong> > <strong id="ALM-17004__en-us_topic_0070543677_b42547853">Configurations > All <strong id="ALM-17004__b1626663919347">Configuration</strong></strong><strong id="ALM-17004__b699935313324">s</strong>. Set Search <strong id="ALM-17004__en-us_topic_0070543677_b13089886">GC_OPTS</strong> in the search box. Increase the value of <strong id="ALM-17004__en-us_topic_0070543677_b50700117">-Xmx</strong> as required, and click <strong id="ALM-17004__en-us_topic_0070543677_b53647874">Save </strong>> <strong id="ALM-17004__en-us_topic_0070543677_b50510538">OK</strong>.</span><p><div class="note" id="ALM-17004__note17850123124113"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="ALM-17004__p855517297466">Suggestions on GC parameter settings for Oozie:</p>
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<p id="ALM-17004__p153433617167">You are advised to set <strong id="ALM-17004__b5851181819343">-Xms</strong> and <strong id="ALM-17004__b124608240345">-Xmx</strong> to the same value to prevent adverse impact on performance when JVM dynamically adjusts the heap memory size.</p>
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</div></div>
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</p></li><li id="ALM-17004__en-us_topic_0070543677_li51941663"><span>Restart the affected services or instances and check whether the alarm is cleared.</span><p><ul id="ALM-17004__en-us_topic_0070543677_ul64821791"><li id="ALM-17004__en-us_topic_0070543677_li46525209">If yes, no further action is required.</li><li id="ALM-17004__en-us_topic_0070543677_li16073704">If no, go to <a href="#ALM-17004__en-us_topic_0070543677_d0e31704">6</a>.</li></ul>
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</p></li></ol>
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<p id="ALM-17004__en-us_topic_0070543677_p26901646"><strong id="ALM-17004__b10253426173732">Collect fault information.</strong></p>
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<ol start="6" id="ALM-17004__ol57964474173833"><li id="ALM-17004__en-us_topic_0070543677_d0e31704"><a name="ALM-17004__en-us_topic_0070543677_d0e31704"></a><a name="en-us_topic_0070543677_d0e31704"></a><span>On the FusionInsight Manager portal, choose <strong id="ALM-17004__b13713643173312">O&M </strong>><strong id="ALM-17004__b10713543133317"> Log</strong><strong id="ALM-17004__b119531139153318"> </strong>><strong id="ALM-17004__b295313915333"> Download</strong>.</span></li><li id="ALM-17004__en-us_topic_0070543677_li48491270"><span>Select <strong id="ALM-17004__en-us_topic_0070543677_b33768250">Oozie</strong> in the required cluster from the <strong id="ALM-17004__en-us_topic_0070543677_b35478794">Service</strong>.</span></li><li id="ALM-17004__en-us_topic_0070543677_li55210095"><span>Click <span><img id="ALM-17004__image1945644173117" src="en-us_image_0270938821.png"></span> in the upper right corner, and set <strong id="ALM-17004__b6456941173117">Start Date</strong> and <strong id="ALM-17004__b11456154113318">End Date</strong> for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-17004__b13456164113319">Download</strong>.</span></li><li id="ALM-17004__en-us_topic_0070543677_li46899323"><span>Contact the <span id="ALM-17004__text4614151421417">O&M personnel</span> and send the collected logs.</span></li></ol>
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</div>
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<div class="section" id="ALM-17004__section1529716184534"><h4 class="sectiontitle">Alarm Clearing</h4><p id="ALM-17004__p4677152685316">After the fault is rectified, the system automatically clears this alarm.</p>
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<div class="section" id="ALM-17004__s1c5d055ea5c74980a70253d5b8630699"><h4 class="sectiontitle">Related Information</h4><p id="ALM-17004__en-us_topic_0070543676_p62381196">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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