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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>
85 lines
9.8 KiB
HTML
85 lines
9.8 KiB
HTML
<a name="ALM-45176"></a><a name="ALM-45176"></a>
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<h1 class="topictitle1">ALM-45176 Success Rate of Calling OBS Metadata APIs Is Lower than the Threshold</h1>
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<div id="body1599639034691"><div class="section" id="ALM-45176__section13447226"><h4 class="sectiontitle">Description</h4><p id="ALM-45176__p61726833">The system checks whether the success rate of calling OBS metadata APIs is lower than the threshold every 30 seconds. This alarm is generated when the success rate is lower than the threshold.</p>
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<p id="ALM-45176__p131495311521">This alarm is automatically cleared when the success rate of calling APIs for writing OBS data is greater than the threshold.</p>
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</div>
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<div class="section" id="ALM-45176__section53916176"><h4 class="sectiontitle">Attribute</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-45176__table33817547" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-45176__row8931076"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-45176__p52328576">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-45176__p10756297">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-45176__p65953734">Auto Clear</p>
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</thead>
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<tbody><tr id="ALM-45176__row40652256"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-45176__p179511920165120">45176</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-45176__p28828553">Minor</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-45176__p53411432">Yes</p>
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</div>
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<div class="section" id="ALM-45176__section15483537"><h4 class="sectiontitle">Parameters</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-45176__table31358724" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-45176__row33518103"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-45176__p30611809">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-45176__p63637484">Meaning</p>
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<tbody><tr id="ALM-45176__row163311621185116"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45176__p17935380415">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-45176__p187931338134115">Specifies the cluster for which the alarm is generated.</p>
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<tr id="ALM-45176__row54362592"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45176__p41293795">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-45176__p56463136">Specifies the service for which the alarm is generated.</p>
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<tr id="ALM-45176__row38406179"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45176__p23892775">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-45176__p56266616">Specifies the role for which the alarm is generated.</p>
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<tr id="ALM-45176__row36637496"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45176__p14847206">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-45176__p61773077">Specifies the host for which the alarm is generated.</p>
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<tr id="ALM-45176__row65417491471"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-45176__p57854422">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-45176__p55696635">Specifies the threshold for triggering the alarm.</p>
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</table>
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</div>
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<div class="section" id="ALM-45176__section5134112"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-45176__p42871020143312">If the success rate of calling the OBS metadata APIs is less than the threshold, the upper-layer big data computing services may be affected. To be more specific, some computing tasks may fail to be executed.</p>
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</div>
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<div class="section" id="ALM-45176__section46207013"><h4 class="sectiontitle">Possible Causes</h4><p id="ALM-45176__p62452010">An execution exception or severe timeout occurs on the OBS server.</p>
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</div>
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<div class="section" id="ALM-45176__section18511446101016"><h4 class="sectiontitle">Procedure</h4><p class="tableheading" id="ALM-45176__p25448063"><strong id="ALM-45176__b49629542132446">Check the heap memory usage.</strong></p>
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<ol id="ALM-45176__ol64950458558"><li id="ALM-45176__li823572385459"><span>On the <strong id="ALM-45176__b1411654715361">FusionInsight Manager</strong> homepage, choose <strong id="ALM-45176__b16117114718362">O&M</strong> > <strong id="ALM-45176__b3117114714367">Alarm</strong> > <strong id="ALM-45176__b31177476366">Alarms</strong> > <strong id="ALM-45176__b711764720361">Success Rate for Calling the OBS Metadata API Is Lower Than the Threshold</strong>, view the role name in <strong id="ALM-45176__b17817915143717">Location</strong>, and check the instance IP address.</span></li><li id="ALM-45176__li701264785459"><span>Choose <strong id="ALM-45176__b51134381024">Cluster</strong> > <em id="ALM-45176__i1113113816216">Name of the desired cluster</em> > <strong id="ALM-45176__b611411386215">Services</strong> > <strong id="ALM-45176__b8114538528">meta</strong> > <strong id="ALM-45176__b9114153817214">Instance</strong> > <strong id="ALM-45176__b1711412381824">meta</strong> (IP address of the instance for which the alarm is generated). Click the drop-down list in the upper right corner of the chart area and choose <strong id="ALM-45176__b1121343718267">Customize</strong>. In the dialog box that is displayed, select <strong id="ALM-45176__b10213153732614">Success percent of OBS interface calls</strong> from <strong id="ALM-45176__b621373719265">OBS Meta data Operations</strong>, and click <strong id="ALM-45176__b1621493742620">OK</strong>. Check whether the average time of OBS metadata API calls exceeds the threshold.</span><p><ul id="ALM-45176__ul14960656105713"><li id="ALM-45176__li096019561574">If yes, go to <a href="#ALM-45176__li5868113155910">3</a>.</li><li id="ALM-45176__li1632819106595">If no, go to <a href="#ALM-45176__li4749473185459">5</a>.</li></ul>
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</p></li><li id="ALM-45176__li5868113155910"><a name="ALM-45176__li5868113155910"></a><a name="li5868113155910"></a><span>Choose <strong id="ALM-45176__b696667171212">Cluster</strong> > <em id="ALM-45176__i59679771211">Name of the desired cluster</em> > <strong id="ALM-45176__b59671711218">O&M</strong> > <strong id="ALM-45176__b209681973121">Alarm</strong> > <strong id="ALM-45176__b1096811712127">Thresholds</strong> > <strong id="ALM-45176__b1996857121214">meta</strong> > <strong id="ALM-45176__b19681475129">Success Rate for Calling the OBS Metadata API</strong>. Increase the threshold or smoothing times as required.</span></li><li id="ALM-45176__li5001643585459"><span>Check whether the alarm is cleared.</span><p><ul class="subitemlist" id="ALM-45176__ul5612728785459"><li id="ALM-45176__li4030548885459">If yes, no further action is required.</li><li id="ALM-45176__li4351906785459">If no, go to <a href="#ALM-45176__li4749473185459">5</a>.</li></ul>
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</p></li></ol>
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<p class="tableheading" id="ALM-45176__p3538354385459"><strong id="ALM-45176__b2210141011518">Collect the fault information.</strong></p>
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<ol start="5" id="ALM-45176__ol4790308885524"><li id="ALM-45176__li4749473185459"><a name="ALM-45176__li4749473185459"></a><a name="li4749473185459"></a><span>On FusionInsight Manager, choose <strong id="ALM-45176__b433533415196">O&M</strong>. In the navigation pane on the left, choose <strong id="ALM-45176__b16338113451910">Log</strong> > <strong id="ALM-45176__b1341123411915">Download</strong>.</span></li><li id="ALM-45176__li2648019085459"><span>In the <strong id="ALM-45176__b13660614121215">Services</strong> area, select <strong id="ALM-45176__b0660121416127">NodeAgent</strong>, <strong id="ALM-45176__b1866013141129">NodeMetricAgent</strong>, <strong id="ALM-45176__b1366010142123">OmmServer</strong>, and <strong id="ALM-45176__b166611514151218">OmmAgent</strong> under OMS.</span></li><li id="ALM-45176__li3699511985459"><span>Click <span><img id="ALM-45176__image52705527103" src="en-us_image_0276137858.png"></span> in the upper right corner, and set <strong id="ALM-45176__b182701520107">Start Date</strong> and <strong id="ALM-45176__b16270185215101">End Date</strong> for log collection to 30 minutes ahead of and after the alarm generation time respectively. Then, click <strong id="ALM-45176__b16270952171011">Download</strong>.</span></li><li id="ALM-45176__li4381466885459"><span>Contact <span id="ALM-45176__text165001593910">O&M personnel</span> and provide the collected logs.</span></li></ol>
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</div>
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<div class="section" id="ALM-45176__section169311343318"><h4 class="sectiontitle">Alarm Clearing</h4><p id="ALM-45176__p754913417333">This alarm is automatically cleared after the fault is rectified.</p>
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</div>
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<div class="section" id="ALM-45176__section51780573"><h4 class="sectiontitle">Related Information</h4><p id="ALM-45176__p54528917">None</p>
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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_1298.html">Alarm Reference (Applicable to MRS 3.x)</a></div>
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</div>
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</div>
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