forked from docs/doc-exports
Yang, Tong
3b1f73dece
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>
81 lines
12 KiB
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81 lines
12 KiB
HTML
<a name="alm_12053"></a><a name="alm_12053"></a>
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<h1 class="topictitle1">ALM-12053 File Handle Usage Exceeds the Threshold</h1>
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<div id="body8662426"><div class="section" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_section23444129"><h4 class="sectiontitle">Description</h4><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p55527849">The system checks the handler usage every 30 seconds. This alarm is generated when the handle usage exceeds the threshold (the default threshold is <strong id="alm_12053__b131165313416">80%</strong>) for multiple times (the default value is <strong id="alm_12053__b1032195312344">5</strong>). </p>
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<p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p29988599">You can change the threshold by choosing <strong id="alm_12053__b189068539343">System</strong> > <strong id="alm_12053__b14907165310347">Threshold Configuration</strong> > <strong id="alm_12053__b17907453153411">Device</strong> > <strong id="alm_12053__b1890895343418">Host</strong> > <strong id="alm_12053__b16908553183416">Host Status</strong> > <strong id="alm_12053__b1890914534344">Host File Handle Usage</strong> > <strong id="alm_12053__b09091553153414">Host File Handle Usage</strong>.</p>
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<p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p1461941">If the <strong id="alm_12053__b1315185511341">hit number</strong> is <strong id="alm_12053__b1115955113416">1</strong>, this alarm is cleared when the file handle usage is less than or equal to the threshold. If the <strong id="alm_12053__b1316165523419">hit number</strong> is greater than <strong id="alm_12053__b716755193416">1</strong>, this alarm is cleared when the file handle 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_12053__en-us_topic_0191813957_en-us_topic_0087039427_section9670576"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_table51308430" frame="border" border="1" rules="all"><thead align="left"><tr id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_row65571443"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p9686670">Alarm ID</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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p46422781">Alarm Severity</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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p2148905">Auto Clear</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_row39843577"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p6104277">12053</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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p24684454">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p53283796">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_section19926324"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_table21020230" frame="border" border="1" rules="all"><thead align="left"><tr id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_row45167837"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p34716170">Parameter</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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p60546367">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_row5308709"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p27352291">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p943138">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_row8488250"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p16459612">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p58160211">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_row53679858"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p53101251">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p6234076">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_row56106692"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p48348189">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_12053__en-us_topic_0191813957_en-us_topic_0087039427_p23889235">Specifies the threshold for triggering the alarm.</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_12053__en-us_topic_0191813957_en-us_topic_0087039427_section45119190"><h4 class="sectiontitle">Impact on the System</h4><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p55979853">The system applications fail to open files, access networks, and perform other I/O operations. The applications are running improperly.</p>
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</div>
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<div class="section" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_section3419527"><h4 class="sectiontitle">Possible Causes</h4><ul id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_ul38074227"><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li7123731">The number of file handles does not meet service requirements.</li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li64113583">The system is abnormal.</li></ul>
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</div>
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<div class="section" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_section30775744"><h4 class="sectiontitle">Procedure</h4><p class="tableheading" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p25817702"><strong id="alm_12053__b56958149350">Increase the number of file handles.</strong></p>
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<ol id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_ol54086714151749"><li id="alm_12053__en-us_topic_0191813957_li1487713813414"><span>Go to the MRS cluster details page and choose <strong id="alm_12053__b666591515358">Alarms</strong>.</span></li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li40401348151742"><span>In the real-time alarm list, click the alarm. In the <strong id="alm_12053__b116511317163512">Alarm Details</strong> area, obtain the IP address of the host for which the alarm is generated.</span></li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li51283722151742"><span>Use PuTTY to log in to the host for which the alarm is generated as user <strong id="alm_12053__b1862111811357">root</strong>.</span></li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li60340817151742"><span>Run the <strong id="alm_12053__b622372010357">ulimit -n</strong> command to check the maximum number of handles set in the system.</span></li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li6196444151742"><span>If the file handle usage exceeds the threshold, contact the system administrator to increase the number of system file handles.</span></li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li12722690151742"><span>Wait 5 minutes and check whether the alarm is cleared.</span><p><ul class="subitemlist" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_ul54009862151742"><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li55768000151742">If yes, no further action is required.</li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li20914176151742">If no, go to <a href="#alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li6831599151742">7</a>.</li></ul>
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</p></li></ol>
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<p class="tableheading" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p16326713151742"><strong id="alm_12053__b3217143120358">Check whether the system environment is normal.</strong></p>
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<ol start="7" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_ol4508281215185"><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li6831599151742"><a name="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li6831599151742"></a><a name="en-us_topic_0191813957_en-us_topic_0087039427_li6831599151742"></a><span>Contact the system administrator to check whether the OS is abnormal.</span><p><ul class="subitemlist" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_ul45498309151742"><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li23904930151742">If yes, rectify the operating system fault and go to <a href="#alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li2777630151742">8</a>.</li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li57251150151742">If no, go to <a href="#alm_12053__en-us_topic_0191813957_li572522141314">9</a>.</li></ul>
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</p></li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li2777630151742"><a name="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li2777630151742"></a><a name="en-us_topic_0191813957_en-us_topic_0087039427_li2777630151742"></a><span>Wait 5 minutes and check whether the alarm is cleared.</span><p><ul class="subitemlist" id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_ul60515119151742"><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li61484399151742">If yes, no further action is required.</li><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_li14180442151742">If no, go to <a href="#alm_12053__en-us_topic_0191813957_li572522141314">9</a>.</li></ul>
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</p></li><li id="alm_12053__en-us_topic_0191813957_li572522141314"><a name="alm_12053__en-us_topic_0191813957_li572522141314"></a><a name="en-us_topic_0191813957_li572522141314"></a><span>Collect fault information.</span><p><ol type="a" id="alm_12053__en-us_topic_0191813957_en-us_topic_0191813935_ol6089206913036"><li id="alm_12053__en-us_topic_0191813957_en-us_topic_0191813935_li4478836213036">On MRS Manager, choose <span class="menucascade" id="alm_12053__menucascade1511610522353"><b><span class="uicontrol" id="alm_12053__uicontrol131151952123519">System</span></b> > <b><span class="uicontrol" id="alm_12053__uicontrol16116452153520">Export Log</span></b></span>.</li><li id="alm_12053__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_12053__en-us_topic_0191813957_en-us_topic_0087039427_section8546242"><h4 class="sectiontitle">Reference</h4><p id="alm_12053__en-us_topic_0191813957_en-us_topic_0087039427_p59210159">None</p>
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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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