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>
97 lines
14 KiB
HTML
97 lines
14 KiB
HTML
<a name="ALM-19015"></a><a name="ALM-19015"></a>
|
|
|
|
<h1 class="topictitle1">ALM-19015 Quantity Quota Usage on ZooKeeper Exceeds the Threshold</h1>
|
|
<div id="body1584496947312"><div class="section" id="ALM-19015__section17691141151116"><h4 class="sectiontitle">Description</h4><p id="ALM-19015__p769217115114">The system checks the ZNode usage of the HBase service every 120 seconds. This alarm is generated when the system detects that the ZNode quantity usage of the HBase service exceeds the alarm threshold (75% by default).</p>
|
|
<p id="ALM-19015__p186921171116">This alarm is cleared when the ZNode quantity usage is less than the alarm threshold.</p>
|
|
<div class="note" id="ALM-19015__note169219119119"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p class="text" id="ALM-19015__p1169219151110">If the multi-instance function has been enabled in the cluster and multiple HBase services have been installed, determine the HBase service for which the alarm is generated based on the value of <strong id="ALM-19015__b519065316519">ServiceName</strong> in <strong id="ALM-19015__b1419695316510">Location</strong>. For example, if the value of <strong id="ALM-19015__b67331657145118">ServiceName</strong> is <strong id="ALM-19015__b1073910577510">HBase-1</strong>, change the operation object in the procedure from <strong id="ALM-19015__b177391057145116">HBase</strong> to <strong id="ALM-19015__b117395576519">HBase-1</strong>.</p>
|
|
</div></div>
|
|
</div>
|
|
<div class="section" id="ALM-19015__section1769220141113"><h4 class="sectiontitle">Attribute</h4>
|
|
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-19015__table126921416111" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-19015__row569210161113"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-19015__p86921319114">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-19015__p18692519115">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-19015__p8692181181110">Auto Clear</p>
|
|
</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody><tr id="ALM-19015__row96925131117"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-19015__p969210181115">19015</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.2 "><p id="ALM-19015__p18692217119">Major</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.3 "><p id="ALM-19015__p116922013118">Yes</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</div>
|
|
<div class="section" id="ALM-19015__section269218131118"><h4 class="sectiontitle">Parameters</h4>
|
|
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-19015__table1469211181120" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-19015__row269281171115"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.1"><p id="ALM-19015__p86921116116">Name</p>
|
|
</th>
|
|
<th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.3.2.1.3.1.2"><p id="ALM-19015__p126921011111">Meaning</p>
|
|
</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody><tr id="ALM-19015__row1669210181117"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19015__p46921414110">Source</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-19015__p1669216151111">Specifies the cluster for which the alarm is generated.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="ALM-19015__row166921915117"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19015__p7692171201112">ServiceName</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-19015__p9692171191120">Specifies the service for which the alarm is generated.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="ALM-19015__row669215117116"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19015__p1269217115114">RoleName</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-19015__p166923114114">Specifies the role for which the alarm is generated.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="ALM-19015__row16924111120"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19015__p66921118115">HostName</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-19015__p76927116118">Specifies the host for which the alarm is generated.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="ALM-19015__row1825612712356"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.1 "><p id="ALM-19015__p1624673963311">Threshold</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.3.2.1.3.1.2 "><p id="ALM-19015__p96741243121619">Specifies the threshold for which the alarm is generated.</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</div>
|
|
<div class="section" id="ALM-19015__section269215191110"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-19015__p17692181181114">This alarm indicates that the ZNode quantity usage in the HBase service has exceeded the threshold. If this alarm is not handled in a timely manner, the problem severity may be escalated to <strong id="ALM-19015__b8842522165218">Critical</strong>, affecting data writing.</p>
|
|
</div>
|
|
<div class="section" id="ALM-19015__section86921014117"><h4 class="sectiontitle">Possible Causes</h4><ul id="ALM-19015__ul038312280264"><li id="ALM-19015__li338318284267">DR is configured for HBase, and data synchronization fails or is slow in DR.</li><li id="ALM-19015__li83831528112613">A large number of WAL files are being split in the HBase cluster.</li></ul>
|
|
</div>
|
|
<div class="section" id="ALM-19015__section478715014106"><h4 class="sectiontitle">Procedure</h4><p class="tableheading" id="ALM-19015__p56924121118"><strong id="ALM-19015__b106871235155311">Check the quantity quota and usage of ZNodes.</strong></p>
|
|
<ol id="ALM-19015__ol969215131118"><li id="ALM-19015__li757054532013"><span>On FusionInsight Manager, choose <strong id="ALM-19015__b134665515320">O&M</strong> > <strong id="ALM-19015__b17461655105311">Alarm</strong> > <strong id="ALM-19015__b194755585315">Alarms</strong>, select the alarm whose ID is <strong id="ALM-19015__b34715520538">19015</strong>, and view the threshold in <strong id="ALM-19015__b1347155105315">Additional Information</strong>.</span></li><li id="ALM-19015__li1464713424275"><span>Log in to the HBase client as user <strong id="ALM-19015__b1795814105416">root</strong>. <span id="ALM-19015__text2648342102710"></span> Run the following command to go to the client installation directory:</span><p><p id="ALM-19015__p89533113914"><strong id="ALM-19015__b1737711195419">cd </strong><em id="ALM-19015__i1138161115419">Client installation directory</em></p>
|
|
<p id="ALM-19015__p19953171173911">Run the following command to set environment variables:</p>
|
|
<p id="ALM-19015__p69533117397"><strong id="ALM-19015__b179531515391">source bigdata_env</strong></p>
|
|
<p class="litext" id="ALM-19015__p69536113399">If the cluster uses the security mode, run the following command to perform security authentication:</p>
|
|
<p class="litext" id="ALM-19015__p139531818392"><strong id="ALM-19015__b095316116394">kinit hbase</strong></p>
|
|
<p class="litext" id="ALM-19015__p39531118399">Enter the password as prompted (obtain the password from the MRS cluster administrator).</p>
|
|
</p></li><li id="ALM-19015__li652210336558"><span>Run the <strong id="ALM-19015__b10940134711589">hbase zkcli</strong> command to log in to the ZooKeeper client and run the <strong id="ALM-19015__b3948124765817">listquota /hbase</strong> command to check the ZNode quantity quota of the HBase service. The ZNode root directory in the command is specified by the <strong id="ALM-19015__b199501477589">zookeeper.znode.parent</strong> parameter of the HBase service. The marked area in the following figure shows the quantity quota configuration of the root ZNode of the HBase service.</span><p><p id="ALM-19015__p1277122593812"><span><img id="ALM-19015__image6447121710398" src="en-us_image_0000001441097977.png"></span></p>
|
|
</p></li><li id="ALM-19015__li7692114118"><span>Run the <strong id="ALM-19015__b0465851127">getusage /hbase/splitWAL</strong> command to check the ZNode quantity usage and check whether the ratio of <strong id="ALM-19015__b114722051823">Node count</strong> in the command output to the ZNode quantity quota is close to the alarm threshold.</span><p><ul class="subitemlist" id="ALM-19015__ul1969216151112"><li id="ALM-19015__li11692101101114">If yes, go to <a href="#ALM-19015__li1269371131112">5</a>.</li><li id="ALM-19015__li116931719112">If no, go to <a href="#ALM-19015__li62018222616">6</a>.</li></ul>
|
|
</p></li><li id="ALM-19015__li1269371131112"><a name="ALM-19015__li1269371131112"></a><a name="li1269371131112"></a><span>On FusionInsight Manager, choose <strong id="ALM-19015__b17805457232">O&M</strong> > <strong id="ALM-19015__b38068571312">Alarm</strong> > <strong id="ALM-19015__b10806357430">Alarms</strong>. Check whether the alarm whose ID is <strong id="ALM-19015__b680615571931">12007</strong>, <strong id="ALM-19015__b188061657635">19000</strong>, or <strong id="ALM-19015__b1980714577310">19013</strong> and the <strong id="ALM-19015__b480719571734">ServiceName</strong> in <strong id="ALM-19015__b6807657239">Location</strong> is the current HBase service exists.</span><p><ul class="subitemlist" id="ALM-19015__ul86932116112"><li id="ALM-19015__li1669317101116">If yes, click <strong id="ALM-19015__b15669194419419">View Help</strong> next to the alarm and rectify the fault by referring to the help document. Then, go to <a href="#ALM-19015__li9693191171112">8</a>.</li><li id="ALM-19015__li26938117115">If no, go to <a href="#ALM-19015__li146938101112">9</a>.</li></ul>
|
|
</p></li><li id="ALM-19015__li62018222616"><a name="ALM-19015__li62018222616"></a><a name="li62018222616"></a><span>Run the <strong id="ALM-19015__b01261512517">getusage /hbase/replication</strong> command to check the ZNode quantity usage and check whether the ratio of <strong id="ALM-19015__b7189150513">Node count</strong> in the command output to the ZNode quantity quota is close to the alarm threshold.</span><p><ul id="ALM-19015__ul11283173712"><li id="ALM-19015__li15128151710712">If yes, go to <a href="#ALM-19015__li17555915687">7</a>.</li><li id="ALM-19015__li16934538574">If no, go to <a href="#ALM-19015__li146938101112">9</a>.</li></ul>
|
|
</p></li><li id="ALM-19015__li17555915687"><a name="ALM-19015__li17555915687"></a><a name="li17555915687"></a><span>On FusionInsight Manager, choose <strong id="ALM-19015__b8113611568">O&M</strong> > <strong id="ALM-19015__b8120211164">Alarm</strong> > <strong id="ALM-19015__b41201111660">Alarms</strong>. Check whether the alarm whose ID is <strong id="ALM-19015__b1212191120610">19006</strong> and <strong id="ALM-19015__b1412112113614">ServiceName</strong> in <strong id="ALM-19015__b131212111563">Location</strong> is the current HBase service exists.</span><p><ul class="subitemlist" id="ALM-19015__ul7556151511818"><li id="ALM-19015__li125561315986">If yes, click <strong id="ALM-19015__b58932312620">View Help</strong> next to the alarm and rectify the fault by referring to the help document. Then, go to <a href="#ALM-19015__li9693191171112">8</a>.</li><li id="ALM-19015__li7556915587">If no, go to <a href="#ALM-19015__li146938101112">9</a>.</li></ul>
|
|
</p></li><li id="ALM-19015__li9693191171112"><a name="ALM-19015__li9693191171112"></a><a name="li9693191171112"></a><span>Check whether the alarm is cleared.</span><p><ul class="subitemlist" id="ALM-19015__ul469312111112"><li id="ALM-19015__li3693516111">If yes, no further action is required.</li><li id="ALM-19015__li20693121171116">If no, go to <a href="#ALM-19015__li146938101112">9</a>.</li></ul>
|
|
</p></li></ol>
|
|
<p class="tableheading" id="ALM-19015__p86931181111"><strong id="ALM-19015__b46931617117">Collect the fault information.</strong></p>
|
|
<ol start="9" id="ALM-19015__ol18693151101115"><li id="ALM-19015__li146938101112"><a name="ALM-19015__li146938101112"></a><a name="li146938101112"></a><span>On FusionInsight Manager, choose <strong id="ALM-19015__b12887941644446">O&M</strong>. In the navigation pane on the left, choose <strong id="ALM-19015__b210039484944446">Log</strong> > <strong id="ALM-19015__b116000414044446">Download</strong>.</span></li><li id="ALM-19015__li1369361141115"><span>Expand the <strong id="ALM-19015__b6103205512202">Service</strong> drop-down list, and select <strong id="ALM-19015__b151091655132012">HBase</strong> for the target cluster.</span></li><li id="ALM-19015__li1769311161115"><span>Click <span><img id="ALM-19015__image166934161111" src="en-us_image_0263895577.png"></span> in the upper right corner, and set <strong id="ALM-19015__b449720942116">Start Date</strong> and <strong id="ALM-19015__b154971917213">End Date</strong> for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-19015__b10498892216">Download</strong>.</span></li><li id="ALM-19015__li369319161119"><span>Contact <span id="ALM-19015__text126301214142412">O&M personnel</span> and provide the collected logs.</span></li></ol>
|
|
</div>
|
|
<div class="section" id="ALM-19015__section069320116117"><h4 class="sectiontitle">Alarm Clearing</h4><p id="ALM-19015__p669310151116">This alarm is automatically cleared after the fault is rectified.</p>
|
|
</div>
|
|
<div class="section" id="ALM-19015__section8693917119"><h4 class="sectiontitle">Related Information</h4><p id="ALM-19015__p669315181113">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>
|
|
|