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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>
83 lines
7.8 KiB
HTML
83 lines
7.8 KiB
HTML
<a name="ALM-16009"></a><a name="ALM-16009"></a>
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<h1 class="topictitle1">ALM-16009 Map Number Exceeds the Threshold</h1>
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<div id="body1546480527717"><div class="section" id="ALM-16009__section27621550"><h4 class="sectiontitle">Description</h4><p id="ALM-16009__p1519816401189">The system checks the number of HQL maps in every 30 seconds. This alarm is generated if the number exceeds the threshold. By default, <strong id="ALM-16009__b97829358481">Trigger Count</strong> is set to <strong id="ALM-16009__b078283520484">3</strong>, and the threshold is 5000.</p>
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<div class="section" id="ALM-16009__section47267361"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-16009__table4510519" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-16009__row13556155"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-16009__p24306760">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-16009__p22690525">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-16009__p25993251">Auto Clear</p>
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<tbody><tr id="ALM-16009__row25078593"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-16009__p18100192">16009</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-16009__p556012016103">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-16009__p39785152">Yes</p>
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<div class="section" id="ALM-16009__section22753069"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-16009__table1371856" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-16009__row6362194"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-16009__p45575691">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-16009__en-us_topic_0070585193_p57841085">Meaning</p>
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<tbody><tr id="ALM-16009__row1847302213275"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-16009__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-16009__p692551319435">Specifies the cluster for which the alarm is generated.</p>
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<tr id="ALM-16009__row52122619"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-16009__p61182593">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-16009__p1062616177113">Specifies the service for which the alarm is generated.</p>
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<tr id="ALM-16009__row41825285"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-16009__p32404954">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-16009__p819482611119">Specifies the role for which the alarm is generated.</p>
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<tr id="ALM-16009__row891897"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-16009__p5134838">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-16009__p1385817435110">Specifies the host for which the alarm is generated.</p>
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<tr id="ALM-16009__row95587442046"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-16009__en-us_topic_0070543660_p47539882">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-16009__en-us_topic_0070543660_p25525229">Specifies the threshold triggering the alarm. If the current indicator value exceeds this threshold, the alarm is generated.</p>
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<div class="section" id="ALM-16009__section3451036"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-16009__p1027118">If the number of HQL maps executed on Hive is excessively large, the HQL execution speed is slow, and a large number of resources are occupied.</p>
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<div class="section" id="ALM-16009__section31059325"><h4 class="sectiontitle">Possible Causes</h4><p id="ALM-16009__p1014764818453">The HQL statements are not the optimal.</p>
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<div class="section" id="ALM-16009__section91416156914"><h4 class="sectiontitle">Procedure</h4><p class="tableheading" id="ALM-16009__p13244096"><strong id="ALM-16009__b1282375713525">Check the number of HQL maps.</strong></p>
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<ol id="ALM-16009__ol53293544164023"><li id="ALM-16009__li66069175164010"><span>On FusionInsight Manager portal, choose <strong id="ALM-16009__b814581317539">Cluster</strong> ><em id="ALM-16009__i1333192585014">Name of the desired <em id="ALM-16009__i1557110281490">cluster</em> </em>> <strong id="ALM-16009__b16145111365312">Services</strong> > <strong id="ALM-16009__b414511134536">Hive</strong> > <strong id="ALM-16009__b21456130538">Resource</strong>. Check the HQL statements with the excessively large number (5000 or more) of maps in <strong id="ALM-16009__b2060871715373">HQL Map Count</strong>.</span></li></ol><ol start="2" id="ALM-16009__ol9827234164043"><li id="ALM-16009__li198172475541"><span>Locate the corresponding HQL statements, optimize them and execute them again.</span></li><li id="ALM-16009__li39815595164010"><span>Check whether the alarm is cleared.</span><p><ul id="ALM-16009__ul276452542"><li id="ALM-16009__li910113137543">If it is, no further action is required.</li><li id="ALM-16009__li5763515417">If it is not, go to <a href="#ALM-16009__li1284813578408">4</a>.</li></ul>
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</p></li></ol>
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<p class="tableheading" id="ALM-16009__p8967395164010"><strong id="ALM-16009__b172471315556">Collect fault information.</strong></p>
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<ol start="4" id="ALM-16009__ol15848157114012"><li id="ALM-16009__li1284813578408"><a name="ALM-16009__li1284813578408"></a><a name="li1284813578408"></a><span>On the FusionInsight Manager, choose <strong id="ALM-16009__b6245171812451">O&M</strong> > <strong id="ALM-16009__b224591844510">Log > Download</strong>.</span></li><li id="ALM-16009__li3694115571"><span>Select <strong id="ALM-16009__b1169116915571">Hive</strong> in the required cluster from the <strong id="ALM-16009__b3811166215571">Service</strong>.</span></li><li id="ALM-16009__li1145664103113"><span>Click <span><img id="ALM-16009__image1945644173117" src="en-us_image_0269417385.png"></span> in the upper right corner, and set <strong id="ALM-16009__b6456941173117">Start Date</strong> and <strong id="ALM-16009__b11456154113318">End Date</strong> for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-16009__b13456164113319">Download</strong>.</span></li><li id="ALM-16009__li4104619215571"><span>Contact the <span id="ALM-16009__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-16009__section1529716184534"><h4 class="sectiontitle">Alarm Clearing</h4><p id="ALM-16009__p4677152685316">After the fault is rectified, the system automatically clears this alarm.</p>
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<div class="section" id="ALM-16009__section56407894"><h4 class="sectiontitle">Related Information</h4><p id="ALM-16009__p40534999">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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