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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
16 KiB
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87 lines
16 KiB
HTML
<a name="ALM-19008"></a><a name="ALM-19008"></a>
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<h1 class="topictitle1">ALM-19008 Heap Memory Usage of the HBase Process Exceeds the Threshold</h1>
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<div id="body11029825"><div class="section" id="ALM-19008__sdcd3a633fbaf494d887e760724f8fa96"><h4 class="sectiontitle">Description</h4><p id="ALM-19008__en-us_topic_0070543522_p31353106">The system checks the HBase service status every 30 seconds. The alarm is generated when the heap memory usage of an HBase service exceeds the threshold (90% of the maximum memory).</p>
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<div class="note" id="ALM-19008__note14544102852418"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p class="text" id="ALM-19008__en-us_topic_0070543520_p32794215">If the multi-instance function is enabled in the cluster and multiple HBase service instances are installed, you need to determine the HBase service instance where the alarm is generated based on the value of <strong id="ALM-19008__en-us_topic_0070543520_b26712487">ServiceName</strong> in <strong id="ALM-19008__en-us_topic_0070543520_b39085796">Location</strong>. For example, if the HBase1 service is unavailable, <strong id="ALM-19008__en-us_topic_0070543520_b11832897">ServiceName=HBase1</strong> is displayed in <strong id="ALM-19008__en-us_topic_0070543520_b39387211">Location</strong>, and the operation object in the procedure needs to be changed from HBase to HBase1.</p>
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<div class="section" id="ALM-19008__s17c729e9f14a42b2b71d8b47bfa0a813"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-19008__en-us_topic_0070543522_table56573654" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-19008__en-us_topic_0070543522_row50443655"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-19008__en-us_topic_0070543522_p59404221">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-19008__en-us_topic_0070543522_p47012596">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-19008__en-us_topic_0070543522_p49923923">Automatically Cleared</p>
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<tbody><tr id="ALM-19008__en-us_topic_0070543522_row17305987"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-19008__en-us_topic_0070543522_p59607724">19008</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-19008__en-us_topic_0070543522_p63496309">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-19008__en-us_topic_0070543522_p42927366">Yes</p>
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<div class="section" id="ALM-19008__s728ce682fb9f4ed2b6aa1a1b14b105e0"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-19008__en-us_topic_0070543522_table54564616" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-19008__en-us_topic_0070543522_row22360170"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-19008__en-us_topic_0070543522_p66343369">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-19008__en-us_topic_0070543522_p5103804">Meaning</p>
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<tbody><tr id="ALM-19008__row3210133011108"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19008__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-19008__p692551319435">Specifies the cluster for which the alarm is generated.</p>
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<tr id="ALM-19008__en-us_topic_0070543522_row10754988"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19008__en-us_topic_0070543522_p65847680">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-19008__en-us_topic_0070543522_p32061857">Specifies the service name for which the alarm is generated.</p>
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<tr id="ALM-19008__en-us_topic_0070543522_row20121257"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19008__en-us_topic_0070543522_p19209127">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-19008__en-us_topic_0070543522_p12435494">Specifies the role name for which the alarm is generated.</p>
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<tr id="ALM-19008__en-us_topic_0070543522_row44810590"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19008__en-us_topic_0070543522_p5779136">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-19008__en-us_topic_0070543522_p65456887">Specifies the object (host ID) for which the alarm is generated.</p>
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<div class="section" id="ALM-19008__s1e06f7c5b3ed477da744c2cbfffa7063"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-19008__en-us_topic_0070543522_p407659">If the available HBase heap memory is insufficient, a memory overflow occurs and the service breaks down.</p>
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<div class="section" id="ALM-19008__s0561753f16b140dca3e12e07f1f3452a"><h4 class="sectiontitle">Possible Causes</h4><p id="ALM-19008__en-us_topic_0070543522_p33020419">The heap memory of the HBase service is overused or the heap memory is inappropriately allocated.</p>
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<div class="section" id="ALM-19008__s28d4d569b23a4c61ab21f5d72e56aad1"><h4 class="sectiontitle">Procedure</h4><p class="tableheading" id="ALM-19008__en-us_topic_0070543522_p57408296"><strong id="ALM-19008__b17926675195116">Check heap memory usage.</strong></p>
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<ol id="ALM-19008__ol66169051195140"><li id="ALM-19008__li25829638195110"><span>On the FusionInsight Manager portal, click <span class="menucascade" id="ALM-19008__menucascade9622183132519"><b><span class="uicontrol" id="ALM-19008__uicontrol862223115259">O&M</span></b> > <b><span class="uicontrol" id="ALM-19008__uicontrol106221731182512">Alarm</span></b> > <b><span class="uicontrol" id="ALM-19008__uicontrol9622153122518">Alarms</span></b></span> and select the alarm whose <strong id="ALM-19008__b48537881195110">ID</strong> is <strong id="ALM-19008__b34187752195110">19008</strong>. Then check the role name in <strong id="ALM-19008__b14790172183618">Location </strong>and confirm the IP adress of the instance.</span><p><ul class="subitemlist" id="ALM-19008__ul55065742195110"><li id="ALM-19008__li25483007195110">If the role for which the alarm is generated is HMaster, go to <a href="#ALM-19008__li11316139195110">2</a>.</li><li id="ALM-19008__li50857658195110">If the role for which the alarm is generated is RegionServer, go to <a href="#ALM-19008__li44755158195110">3</a>.</li></ul>
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</p></li><li id="ALM-19008__li11316139195110"><a name="ALM-19008__li11316139195110"></a><a name="li11316139195110"></a><span>On the FusionInsight Manager portal, choose <strong id="ALM-19008__b1828016461471">Cluster</strong> > <em id="ALM-19008__i175981233194118">Name of the desired cluster</em> > <strong id="ALM-19008__b31140154195110">Services</strong> > <strong id="ALM-19008__b11825930195110">HBase</strong> > <strong id="ALM-19008__b39324513195110">Instance</strong> and click the HMaster for which the alarm is generated to go to the<strong id="ALM-19008__b14303164441516"> Dashboard </strong>page. Click the drop-down menu in the <strong id="ALM-19008__b1937114710229">Chart </strong>area and choose<strong id="ALM-19008__b1115264402213"> Customize</strong> > <strong id="ALM-19008__b1875719437109">CPU and Memory </strong>><strong id="ALM-19008__b187571743161016"> HMaster Heap Memory Usage and Direct Memory Usage Statistics</strong> and click <strong id="ALM-19008__b41661510195110">OK</strong>, check whether the used heap memory of the HBase service reaches 90% of the maximum heap memory specified for HBase.</span><p><ul class="subitemlist" id="ALM-19008__ul60909672195110"><li id="ALM-19008__li19139155195110">If yes, go to <a href="#ALM-19008__li27009410195110">4</a>.</li><li id="ALM-19008__li6767741195110">If no, go to <a href="#ALM-19008__li56360562195110">6</a>.</li></ul>
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</p></li><li id="ALM-19008__li44755158195110"><a name="ALM-19008__li44755158195110"></a><a name="li44755158195110"></a><span>On the FusionInsight Manager portal, choose <strong id="ALM-19008__b1639614811118">Cluster </strong>> <em id="ALM-19008__i1224712206367">Name of the desired cluster</em> ><strong id="ALM-19008__b13246192019361"> Services</strong> > <strong id="ALM-19008__b44192070195110">HBase</strong> > <strong id="ALM-19008__b62184311195110">Instance</strong> and click the RegionServer for which the alarm is generated to go to the<strong id="ALM-19008__b1997562651919"> Dashboard </strong>page. Click the drop-down menu in the <strong id="ALM-19008__b386751982316">Chart </strong>area and choose<strong id="ALM-19008__b971441612232"> Customize</strong> > <strong id="ALM-19008__b19841163301117">CPU and Memory </strong>><strong id="ALM-19008__b584393351110"> RegionServer Heap Memory Usage and Direct Memory Usage Statistics</strong> and click <strong id="ALM-19008__b36484841195110">OK</strong>, check whether the used heap memory of the HBase service reaches 90% of the maximum heap memory specified for HBase.</span><p><ul class="subitemlist" id="ALM-19008__ul64625118195110"><li id="ALM-19008__li2482106195110">If yes, go to <a href="#ALM-19008__li27009410195110">4</a>.</li><li id="ALM-19008__li66832892195110">If no, go to <a href="#ALM-19008__li56360562195110">6</a>.</li></ul>
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</p></li><li id="ALM-19008__li27009410195110"><a name="ALM-19008__li27009410195110"></a><a name="li27009410195110"></a><span>On the FusionInsight Manager portal, choose <strong id="ALM-19008__b63881453111114">Cluster </strong>> <em id="ALM-19008__i25071625183615">Name of the desired cluster</em> ><strong id="ALM-19008__b6389125301116"> Services</strong> > <strong id="ALM-19008__b1289201195110">HBase</strong> > <strong id="ALM-19008__b11602814195110">Configurations</strong>, and click <strong id="ALM-19008__b303901195110">All Config</strong><strong id="ALM-19008__b837616138137">urations</strong>. Choose <strong id="ALM-19008__b2735112195110">HMaster/RegionServer</strong> > <strong id="ALM-19008__b24616016195110">System</strong>. Increase the value of <strong id="ALM-19008__b20217557195110">-Xmx</strong> in <strong id="ALM-19008__b47740288195110">GC_OPTS</strong> by referring to the Note.</span><p><div class="note" id="ALM-19008__note13595132742917"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ol type="a" id="ALM-19008__ol98931136413"><li id="ALM-19008__li12894436414">Suggestions on GC parameter configurations for HMaster<ul id="ALM-19008__ul1575412555118"><li id="ALM-19008__li207541155214">Set <strong id="ALM-19008__b157677941118">-Xms</strong> and <strong id="ALM-19008__b1776710918113">-Xmx</strong> to the same value to prevent JVM from dynamically adjusting the heap memory size and affecting performance.</li><li id="ALM-19008__li8754175518118">Set <strong id="ALM-19008__b1706142619239">-XX:NewSize</strong> to the value of <strong id="ALM-19008__b47061026172320">-XX:MaxNewSize</strong>, which is one eighth of <strong id="ALM-19008__b20706626122313">-Xmx</strong>.</li><li id="ALM-19008__li875445512117">For large-scale HBase clusters with a large number of regions, increase values of <strong id="ALM-19008__b398019572614">GC_OPTS</strong> parameters for HMaster. Specifically, set <strong id="ALM-19008__b17980859260">-Xmx</strong> to 4 GB if the number of regions is less than 100,000. If the number of regions is more than 100,000, set -Xmx to be greater than or equal to 6 GB. For each increased 35,000 regions, increase the value of <strong id="ALM-19008__b79808582618">-Xmx</strong> by 2 GB. The maximum value of <strong id="ALM-19008__b109808518268">-Xmx</strong> is 32 GB.</li></ul>
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</li><li id="ALM-19008__li1995063410311">Suggestions on GC parameter configurations for RegionServer<ul id="ALM-19008__ul8262185416213"><li id="ALM-19008__li11863072314">Set <strong id="ALM-19008__b19627407123">-Xms</strong> and <strong id="ALM-19008__b1262124061218">-Xmx</strong> to the same value to prevent JVM from dynamically adjusting the heap memory size and affecting performance.</li><li id="ALM-19008__li162621954329">Set <strong id="ALM-19008__b250503141217">-XX:NewSize</strong> to one eighth of <strong id="ALM-19008__b17505203111126">-Xmx</strong>.</li><li id="ALM-19008__li889514285313">Set the memory for RegionServer to be greater than that for HMaster. If sufficient memory is available, increase the heap memory.</li><li id="ALM-19008__li168901016311">Set <strong id="ALM-19008__b11220193171320">-Xmx</strong> based on the machine memory size. Specifically, set <strong id="ALM-19008__b7220173114135">-Xmx</strong> to 32 GB if the machine memory is greater than 200 GB, to 16 GB if the machine memory is greater than 128 GB and less than 200 GB, and to 8 GB if the machine memory is less than 128 GB. When <strong id="ALM-19008__b8631164614134">-Xmx</strong> is set to 32 GB, a RegionServer node supports 2000 regions and 200 hotspot regions.</li></ul>
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</li></ol>
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</p></li><li id="ALM-19008__li60189915195110"><span>Check whether the alarm is cleared.</span><p><ul class="subitemlist" id="ALM-19008__ul41339805195110"><li id="ALM-19008__li41758100195110">If yes, no further action is required.</li><li id="ALM-19008__li26962933195110">If no, go to <a href="#ALM-19008__li56360562195110">6</a>.</li></ul>
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</p></li></ol>
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<p class="tableheading" id="ALM-19008__p36513930195110"><strong id="ALM-19008__b4084949195156">Collect fault information.</strong></p>
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<ol start="6" id="ALM-19008__ol4449508119520"><li id="ALM-19008__li56360562195110"><a name="ALM-19008__li56360562195110"></a><a name="li56360562195110"></a><span>On the FusionInsight Manager portal, choose <strong id="ALM-19008__b837556111412">O&M</strong> > <strong id="ALM-19008__b651481171416">Log </strong>><strong id="ALM-19008__b1951415113145"> Download</strong>.</span></li><li id="ALM-19008__li11806859195110"><span>Select <strong id="ALM-19008__b37483010195110">HBase</strong> in the required cluster from the <strong id="ALM-19008__b1802772195110">Service</strong> drop-down list.</span></li><li id="ALM-19008__li1145664103113"><span>Click <span><img id="ALM-19008__image1945644173117" src="en-us_image_0269417422.png"></span> in the upper right corner, and set <strong id="ALM-19008__b6456941173117">Start Date</strong> and <strong id="ALM-19008__b11456154113318">End Date</strong> for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-19008__b13456164113319">Download</strong>.</span></li><li id="ALM-19008__li37728124195110"><span>Contact the <span id="ALM-19008__text4614151421417">O&M personnel</span> and send the collected fault logs.</span></li></ol>
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<div class="section" id="ALM-19008__section1529716184534"><h4 class="sectiontitle">Alarm Clearing</h4><p id="ALM-19008__p4677152685316">After the fault is rectified, the system automatically clears this alarm.</p>
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<div class="section" id="ALM-19008__sc19d8ee71cbe4b62b7717cb470510a07"><h4 class="sectiontitle">Related Information</h4><p id="ALM-19008__en-us_topic_0070543522_p34745524">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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