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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>
76 lines
8.3 KiB
HTML
76 lines
8.3 KiB
HTML
<a name="alm_12018"></a><a name="alm_12018"></a>
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<h1 class="topictitle1">ALM-12018 Memory Usage Exceeds the Threshold</h1>
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<div id="body8662426"><div class="section" id="alm_12018__en-us_topic_0191813923_section29104691105752"><h4 class="sectiontitle">Description</h4><p id="alm_12018__en-us_topic_0191813923_p60326185105735">The system checks the memory usage every 30 seconds and compares the actual memory usage with the threshold. The memory usage has a default threshold. This alarm is generated when the detected memory usage exceeds the threshold.</p>
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<p id="alm_12018__en-us_topic_0191813923_p54582842105735">This alarm is cleared when the host memory usage is less than or equal to 90% of the threshold.</p>
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</div>
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<div class="section" id="alm_12018__en-us_topic_0191813923_section40132067105759"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="alm_12018__en-us_topic_0191813923_table62445037105735" frame="border" border="1" rules="all"><thead align="left"><tr id="alm_12018__en-us_topic_0191813923_row50239761105735"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="alm_12018__en-us_topic_0191813923_p42888830105735"><strong id="alm_12018__b61711826364">Alarm ID</strong></p>
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</th>
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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_12018__en-us_topic_0191813923_p60335505105735"><strong id="alm_12018__b6883142617610">Alarm Severity</strong></p>
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</th>
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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_12018__en-us_topic_0191813923_p28277271105735"><strong id="alm_12018__b256711273619">Auto Clear</strong></p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="alm_12018__en-us_topic_0191813923_row8757654105735"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="alm_12018__en-us_topic_0191813923_p38281406105735">12018</p>
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</td>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.2 "><p id="alm_12018__en-us_topic_0191813923_p13786166105735">Major</p>
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</td>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.3 "><p id="alm_12018__en-us_topic_0191813923_p42937638105735">Yes</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_12018__en-us_topic_0191813923_section4770107710588"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="alm_12018__en-us_topic_0191813923_table28807923105735" frame="border" border="1" rules="all"><thead align="left"><tr id="alm_12018__en-us_topic_0191813923_row3599421105735"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="alm_12018__en-us_topic_0191813923_p23117664105735"><strong id="alm_12018__b102718319614">Parameter</strong></p>
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</th>
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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_12018__en-us_topic_0191813923_p8452295105735"><strong id="alm_12018__b295212319619">Description</strong></p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="alm_12018__en-us_topic_0191813923_row13547331105735"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="alm_12018__en-us_topic_0191813923_p23591994105735">ServiceName</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="alm_12018__en-us_topic_0191813923_p31903382105735">Specifies the service for which the alarm is generated.</p>
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</td>
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</tr>
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<tr id="alm_12018__en-us_topic_0191813923_row18694990105735"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="alm_12018__en-us_topic_0191813923_p37899196105735">RoleName</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="alm_12018__en-us_topic_0191813923_p49936002105735">Specifies the role for which the alarm is generated.</p>
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</td>
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</tr>
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<tr id="alm_12018__en-us_topic_0191813923_row46770838105735"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="alm_12018__en-us_topic_0191813923_p30341524105735">HostName</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="alm_12018__en-us_topic_0191813923_p41744383105735">Specifies the host for which the alarm is generated.</p>
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</td>
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</tr>
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<tr id="alm_12018__en-us_topic_0191813923_row40155128105735"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="alm_12018__en-us_topic_0191813923_p31339953105735">Trigger Condition</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="alm_12018__en-us_topic_0191813923_p55508234105735">Generates an alarm when the actual indicator value exceeds the specified threshold.</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_12018__en-us_topic_0191813923_section5366954105820"><h4 class="sectiontitle">Impact on the System</h4><p id="alm_12018__en-us_topic_0191813923_p65966470105735">Processes respond slowly or do not work.</p>
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</div>
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<div class="section" id="alm_12018__en-us_topic_0191813923_section43113673105831"><h4 class="sectiontitle">Possible Causes</h4><p id="alm_12018__en-us_topic_0191813923_p39610599105735">Memory configuration cannot meet service requirements. The memory usage reaches the upper threshold.</p>
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</div>
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<div class="section" id="alm_12018__en-us_topic_0191813923_section40700895105840"><h4 class="sectiontitle">Procedure</h4><ol id="alm_12018__en-us_topic_0191813923_ol40297912105855"><li id="alm_12018__en-us_topic_0191813923_li1008002410596"><span>Expand the system.</span><p><ol type="a" id="alm_12018__en-us_topic_0191813923_ol63961730105932"><li id="alm_12018__en-us_topic_0191813923_li13681477105932">Go to the MRS cluster details page. In the alarm list on the alarm management tab page, click the row that contains the alarm. In the alarm details, view the host address of the alarm.</li><li id="alm_12018__en-us_topic_0191813923_li39620364105932">Log in to the node for which the alarm is generated.</li><li id="alm_12018__en-us_topic_0191813923_li60792803105932">Run <strong id="alm_12018__b11471125711617">free -m | grep Mem\: | awk '{printf("%s,", ($3-$6-$7) * 100 / $2)}'</strong> to check the system memory usage.</li><li id="alm_12018__en-us_topic_0191813923_li5619917105955">If the memory usage exceeds the threshold, expand the memory capacity.</li><li id="alm_12018__en-us_topic_0191813923_li11042090105958">Wait 5 minutes and check whether the alarm is cleared.<ul id="alm_12018__en-us_topic_0191813923_ul352261681100"><li id="alm_12018__en-us_topic_0191813923_li26211171102">If yes, no further action is required.</li><li id="alm_12018__en-us_topic_0191813923_li262595291100">If no, go to <a href="#alm_12018__en-us_topic_0191813923_li572522141314">2</a>.</li></ul>
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</li></ol>
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</p></li><li id="alm_12018__en-us_topic_0191813923_li572522141314"><a name="alm_12018__en-us_topic_0191813923_li572522141314"></a><a name="en-us_topic_0191813923_li572522141314"></a><span>Collect fault information.</span><p><ol type="a" id="alm_12018__en-us_topic_0191813923_en-us_topic_0191813935_ol6089206913036"><li id="alm_12018__en-us_topic_0191813923_en-us_topic_0191813935_li4478836213036">On MRS Manager, choose <span class="menucascade" id="alm_12018__menucascade991941319718"><b><span class="uicontrol" id="alm_12018__uicontrol69141713976">System</span></b> > <b><span class="uicontrol" id="alm_12018__uicontrol39193138714">Export Log</span></b></span>.</li><li id="alm_12018__li18574327401">Contact technical support engineers for help. For details, see <a href="https://docs.otc.t-systems.com/en-us/public/learnmore.html" target="_blank" rel="noopener noreferrer">technical support</a>.</li></ol>
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</p></li></ol>
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</div>
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<div class="section" id="alm_12018__en-us_topic_0191813923_section13081136172452"><h4 class="sectiontitle"><strong id="alm_12018__b7612151517717">Reference</strong></h4><p id="alm_12018__en-us_topic_0191813923_p509006751263">None</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_0241.html">Alarm Reference (Applicable to Versions Earlier Than MRS 3.x)</a></div>
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</div>
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</div>
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