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Yang, Tong 3b1f73dece MRS UMN 2.0.38.SP20 version 
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>
2022-12-13 12:03:34 +00:00

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<a name="ALM-25500"></a><a name="ALM-25500"></a>
<h1 class="topictitle1">ALM-25500 KrbServer Service Unavailable</h1>
<div id="body5303497"><div class="section" id="ALM-25500__s1a485cf8db3b46fabb9ee7fd2386cdae"><h4 class="sectiontitle">Description</h4><p id="ALM-25500__en-us_topic_0070543549_p13224809">The system checks the KrbServer service status every 30 seconds. This alarm is generated when the system detects that the KrbServer service is abnormal.</p>
<p id="ALM-25500__en-us_topic_0070543549_p51914417">This alarm is cleared when the system detects that the KrbServer service is normal.</p>
</div>
<div class="section" id="ALM-25500__s3b3867c0513a43218ef8d6d80cc94d7c"><h4 class="sectiontitle">Attribute</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-25500__en-us_topic_0070543549_table44318255" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-25500__en-us_topic_0070543549_row11370190"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-25500__en-us_topic_0070543549_p48570174">Alarm ID</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.2"><p id="ALM-25500__en-us_topic_0070543549_p41870031">Alarm Severity</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.3"><p id="ALM-25500__en-us_topic_0070543549_p36029352">Auto Clear</p>
</th>
</tr>
</thead>
<tbody><tr id="ALM-25500__en-us_topic_0070543549_row32696434"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-25500__en-us_topic_0070543549_p31165525">25500</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.2 "><p id="ALM-25500__en-us_topic_0070543549_p41379576">Critical</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.3 "><p id="ALM-25500__en-us_topic_0070543549_p63411331">Yes</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section" id="ALM-25500__s9636bcaef6d6418da93ec8a851b2b3b6"><h4 class="sectiontitle">Parameters</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-25500__en-us_topic_0070543549_table36044191" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-25500__en-us_topic_0070543549_row15839470"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-25500__en-us_topic_0070543549_p7928727">Name</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.2"><p id="ALM-25500__en-us_topic_0070543549_p38247156">Meaning</p>
</th>
</tr>
</thead>
<tbody><tr id="ALM-25500__row9128151017416"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-25500__p192431315431">Source</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-25500__p692551319435">Specifies the cluster for which the alarm is generated.</p>
</td>
</tr>
<tr id="ALM-25500__en-us_topic_0070543549_row11011950"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-25500__en-us_topic_0070543549_p19552748">ServiceName</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-25500__en-us_topic_0070543549_p40268759">Specifies the service for which the alarm is generated.</p>
</td>
</tr>
<tr id="ALM-25500__en-us_topic_0070543549_row26874512"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-25500__en-us_topic_0070543549_p29351881">RoleName</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-25500__en-us_topic_0070543549_p28692130">Specifies the role for which the alarm is generated.</p>
</td>
</tr>
<tr id="ALM-25500__en-us_topic_0070543549_row56902578"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-25500__en-us_topic_0070543549_p45706078">HostName</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-25500__en-us_topic_0070543549_p11204863">Specifies the host for which the alarm is generated.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section" id="ALM-25500__s725e10c8a574455f8b5299cfa6245be3"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-25500__en-us_topic_0070543549_p35178749">When this alarm is generated, no operation can be performed for the KrbServer component in the cluster. The authentication of KrbServer in other components will be affected. The running status of components that depend on KrbServer in the cluster is Bad.</p>
</div>
<div class="section" id="ALM-25500__sb005f690f5e646b196f4a1f7e605786d"><h4 class="sectiontitle">Possible Causes</h4><ul id="ALM-25500__en-us_topic_0070543549_ul30906431"><li id="ALM-25500__en-us_topic_0070543549_li9722430">The node where the KrbServer service locates is faulty.</li><li id="ALM-25500__en-us_topic_0070543549_li20393006">The OLdap service is abnormal.</li></ul>
</div>
<div class="section" id="ALM-25500__s144e03e9f72141f983cbf19f89647de8"><h4 class="sectiontitle">Procedure</h4><p class="tableheading" id="ALM-25500__en-us_topic_0070543549_p41220785"><strong id="ALM-25500__b11324484202245">Check whether the node where the KrbServer service locates is faulty.</strong></p>
<ol id="ALM-25500__ol51025015202327"><li id="ALM-25500__li19872481202241"><a name="ALM-25500__li19872481202241"></a><a name="li19872481202241"></a><span>On the FusionInsight Manager home page, choose <strong id="ALM-25500__b11308181419346">Cluster</strong> &gt; <em id="ALM-25500__i19727152204116">Name of the desired cluster</em> &gt; <strong id="ALM-25500__b57470238202241">Services</strong> &gt; <strong id="ALM-25500__b47470095202241">KrbServer</strong> &gt; <strong id="ALM-25500__b24577674202241">Instance</strong> to go to the KrbServer instance page to obtain the host name of the node where the KrbServer service locates.</span></li><li id="ALM-25500__li14268717202241"><span>On the <strong id="ALM-25500__b44634603202241">Alarm</strong> page of the FusionInsight Manager system, check whether any alarm of <strong id="ALM-25500__b1041792815161">Node Fault</strong> exists.</span><p><ul class="subitemlist" id="ALM-25500__ul23955034202241"><li id="ALM-25500__li57936118202241">If yes, go to <a href="#ALM-25500__li6642034202241">3</a>.</li><li id="ALM-25500__li62313994202241">If no, go to <a href="#ALM-25500__li25144643202241">6</a>.</li></ul>
</p></li><li id="ALM-25500__li6642034202241"><a name="ALM-25500__li6642034202241"></a><a name="li6642034202241"></a><span>Check whether the host name in the alarm is consistent with the <a href="#ALM-25500__li19872481202241">1</a> host name.</span><p><ul class="subitemlist" id="ALM-25500__ul15651084202241"><li id="ALM-25500__li21469202241">If yes, go to <a href="#ALM-25500__li1133847202241">4</a>.</li><li id="ALM-25500__li1739009202241">If no, go to <a href="#ALM-25500__li25144643202241">6</a>.</li></ul>
</p></li><li id="ALM-25500__li1133847202241"><a name="ALM-25500__li1133847202241"></a><a name="li1133847202241"></a><span>Handle the alarm according to "ALM-12006 Node Fault".</span></li><li id="ALM-25500__li21698655202241"><span>Check whether <strong id="ALM-25500__b137781632121715">KrbServer Service Unavailable</strong> is cleared in the alarm list.</span><p><ul class="subitemlist" id="ALM-25500__ul45007127202241"><li id="ALM-25500__li24732760202241">If yes, no further action is required.</li><li id="ALM-25500__li57196575202241">If no, go to <a href="#ALM-25500__li25144643202241">6</a>.</li></ul>
</p></li></ol>
<p class="tableheading" id="ALM-25500__p2410961202241"><strong id="ALM-25500__b21351225202256">Check whether the OLdap service is normal.</strong></p>
<ol start="6" id="ALM-25500__ol9651855202346"><li id="ALM-25500__li25144643202241"><a name="ALM-25500__li25144643202241"></a><a name="li25144643202241"></a><span>On the <strong id="ALM-25500__b61070168202241">Alarm</strong> page of the FusionInsight Manager system, check whether any alarm of <strong id="ALM-25500__b654218217198">OLdap Resource Abnormal</strong> exists.</span><p><ul class="subitemlist" id="ALM-25500__ul2793849202241"><li id="ALM-25500__li26976256202241">If yes, go to <a href="#ALM-25500__li23450230202241">7</a>.</li><li id="ALM-25500__li37593129202241">If no, go to <a href="#ALM-25500__li11814745202241">9</a>.</li></ul>
</p></li><li id="ALM-25500__li23450230202241"><a name="ALM-25500__li23450230202241"></a><a name="li23450230202241"></a><span>Handle the alarm according to "ALM-12004 OLdap Resource Abnormal".</span></li><li id="ALM-25500__li62614324202241"><span>Check whether <strong id="ALM-25500__b1661313322014">KrbServer Service Unavailable</strong> is cleared in the alarm list.</span><p><ul class="subitemlist" id="ALM-25500__ul55454312202241"><li id="ALM-25500__li20420457202241">If yes, no further action is required.</li><li id="ALM-25500__li43444292202241">If no, go to <a href="#ALM-25500__li11814745202241">9</a>.</li></ul>
</p></li></ol>
<p class="tableheading" id="ALM-25500__p29326768202241"><strong id="ALM-25500__b55719602202339">Collect fault information.</strong></p>
<ol start="9" id="ALM-25500__ol48247026202351"><li id="ALM-25500__li11814745202241"><a name="ALM-25500__li11814745202241"></a><a name="li11814745202241"></a><span>On the FusionInsight Manager, choose <strong id="ALM-25500__b1254564616356">O&amp;M</strong> &gt; <strong id="ALM-25500__b38595451202241">Log &gt; Download</strong>.</span></li><li id="ALM-25500__li5809061202241"><span>Select <strong id="ALM-25500__b39223847202241">KrbServer</strong> in the required cluster from the <strong id="ALM-25500__b17470311202241">Service</strong>.</span></li><li id="ALM-25500__li1145664103113"><span>Click <span><img id="ALM-25500__image1945644173117" src="en-us_image_0269417459.png"></span> in the upper right corner, and set <strong id="ALM-25500__b6456941173117">Start Date</strong> and <strong id="ALM-25500__b11456154113318">End Date</strong> for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-25500__b13456164113319">Download</strong>.</span></li><li id="ALM-25500__li31267729202241"><span>Contact the <span id="ALM-25500__text4614151421417">O&amp;M personnel</span> and send the collected logs.</span></li></ol>
</div>
<div class="section" id="ALM-25500__section1529716184534"><h4 class="sectiontitle">Alarm Clearing</h4><p id="ALM-25500__p4677152685316">After the fault is rectified, the system automatically clears this alarm.</p>
</div>
<div class="section" id="ALM-25500__sac63cb59911045dd97fb7f83976cf769"><h4 class="sectiontitle">Related Information</h4><p id="ALM-25500__en-us_topic_0070543549_p55408435">None</p>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_1298.html">Alarm Reference (Applicable to MRS 3.x)</a></div>
</div>
</div>
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