forked from docs/doc-exports
Yang, Tong
5914b67d13
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
92 lines
9.0 KiB
HTML
92 lines
9.0 KiB
HTML
<a name="ALM-29007"></a><a name="ALM-29007"></a>
|
|
|
|
<h1 class="topictitle1">ALM-29007 Impalad Process Memory Usage Exceeds the Threshold</h1>
|
|
<div id="body0000001282768122"><div class="section" id="ALM-29007__section8280367"><h4 class="sectiontitle">Alarm Description</h4><p id="ALM-29007__p1658442017419">The system checks the memory usage of the Impalad process every 30 seconds. This alarm is generated when the system detects that the memory usage exceeds the default threshold (80%).</p>
|
|
<p id="ALM-29007__p2335053105020">This alarm is automatically cleared when the system detects that the memory usage of the process falls below the threshold.</p>
|
|
</div>
|
|
<div class="section" id="ALM-29007__section7414445"><h4 class="sectiontitle">Alarm Attributes</h4>
|
|
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-29007__table45079949" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-29007__row5683496"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.1.4.1.1"><p id="ALM-29007__p57710042">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-29007__p44001849">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-29007__p7380012">Auto Cleared</p>
|
|
</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody><tr id="ALM-29007__row60910108"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.1 "><p id="ALM-29007__p16488194717492">29007</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.2 "><p id="ALM-29007__p588994817496">Minor</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.1.4.1.3 "><p id="ALM-29007__p34071398">Yes</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</div>
|
|
<div class="section" id="ALM-29007__section66730009"><h4 class="sectiontitle">Alarm Parameters</h4>
|
|
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-29007__table8319831" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-29007__row40868022"><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.2.1.4.1.1"><p id="ALM-29007__p142444173412">Type</p>
|
|
</th>
|
|
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.2.1.4.1.2"><p id="ALM-29007__p21975462">Parameter</p>
|
|
</th>
|
|
<th align="left" class="cellrowborder" valign="top" width="60%" id="mcps1.3.3.2.1.4.1.3"><p id="ALM-29007__p35182007">Description</p>
|
|
</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody><tr id="ALM-29007__row594512751512"><td class="cellrowborder" rowspan="4" valign="top" width="20%" headers="mcps1.3.3.2.1.4.1.1 "><p id="ALM-29007__p193386121348">Location Information</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.1.4.1.2 "><p id="ALM-29007__p8838358184914">Source</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.3.2.1.4.1.3 "><p id="ALM-29007__p837170125015">Specifies the cluster for which the alarm was generated.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="ALM-29007__row31170320"><td class="cellrowborder" valign="top" headers="mcps1.3.3.2.1.4.1.1 "><p id="ALM-29007__p39123317">ServiceName</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" headers="mcps1.3.3.2.1.4.1.2 "><p id="ALM-29007__p172628810500">Specifies the service for which the alarm was generated.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="ALM-29007__row8175713133714"><td class="cellrowborder" valign="top" headers="mcps1.3.3.2.1.4.1.1 "><p id="ALM-29007__p37226997">RoleName</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" headers="mcps1.3.3.2.1.4.1.2 "><p id="ALM-29007__p18175513173712">Specifies the role for which the alarm was generated.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="ALM-29007__row144886177375"><td class="cellrowborder" valign="top" headers="mcps1.3.3.2.1.4.1.1 "><p id="ALM-29007__p24881417123717">HostName</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" headers="mcps1.3.3.2.1.4.1.2 "><p id="ALM-29007__p13488417133716">Specifies the host for which the alarm was generated.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="ALM-29007__row1688158103712"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.1.4.1.1 "><p id="ALM-29007__p152418412348">Additional Information</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.1.4.1.2 "><p id="ALM-29007__p688484371">Trigger Condition</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.3.2.1.4.1.3 "><p id="ALM-29007__p19884817379">Specifies the threshold for triggering the alarm.</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</div>
|
|
<div class="section" id="ALM-29007__section63699172"><h4 class="sectiontitle">Impact on the System</h4><p id="ALM-29007__p485055019508">The memory usage is too high. Some query tasks may fail due to insufficient memory.</p>
|
|
</div>
|
|
<div class="section" id="ALM-29007__section36421639"><h4 class="sectiontitle">Possible Causes</h4><p id="ALM-29007__p9402509505">The Impalad process is executing a large number of query tasks.</p>
|
|
</div>
|
|
<div class="section" id="ALM-29007__section61311810131118"><h4 class="sectiontitle">Handling Procedure</h4><ol id="ALM-29007__ol1598183211416"><li id="ALM-29007__li39816321245"><span>On FusionInsight Manager, choose <strong id="ALM-29007__b1159183925518">O&M</strong> > <strong id="ALM-29007__b5160939195510">Alarm</strong> > <strong id="ALM-29007__b116013916555">Thresholds</strong> > <strong id="ALM-29007__b616015395555">Impala</strong> > <strong id="ALM-29007__b6160939195519">CPU and Memory</strong> > <strong id="ALM-29007__b1160153918559">Impalad Process Memory Usage (Impalad)</strong> and check the threshold.</span></li><li id="ALM-29007__li6595161750"><span>If the alarm threshold is smaller than 80%, increase the alarm threshold as required and check whether the alarm is cleared.</span><p><ul id="ALM-29007__ul941175682912"><li id="ALM-29007__li241456102913">If yes, no further action is required.</li><li id="ALM-29007__li1032055153019">If no, go to <a href="#ALM-29007__li54643151153">3</a>.</li></ul>
|
|
</p></li><li id="ALM-29007__li54643151153"><a name="ALM-29007__li54643151153"></a><a name="li54643151153"></a><span>If the threshold is greater than 80%, check whether a large number of concurrent query tasks exist when the alarm is generated. A large number of concurrent query tasks will cause the memory usage to increase sharply. After the tasks are complete, check whether the alarm is automatically cleared. During this period, some tasks may fail to be executed or may be canceled due to insufficient memory. In this case, try again.</span><p><div class="note" id="ALM-29007__note35700516451"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="ALM-29007__p257015514518">If the memory usage always exceeds the threshold, the cluster capacity needs to be expanded.</p>
|
|
</div></div>
|
|
<ul id="ALM-29007__ul1769835811449"><li id="ALM-29007__li10698175824412">If yes, no further action is required.</li><li id="ALM-29007__li14698258154413">If no, go to <a href="#ALM-29007__li1698242954313">4</a>.</li></ul>
|
|
</p></li></ol>
|
|
<p class="tableheading" id="ALM-29007__p39821129144316"><strong id="ALM-29007__b17406162195715">Collect fault information.</strong></p>
|
|
<ol start="4" id="ALM-29007__ol189821329134317"><li id="ALM-29007__li1698242954313"><a name="ALM-29007__li1698242954313"></a><a name="li1698242954313"></a><span>On FusionInsight Manager of the active or standby cluster, choose <strong id="ALM-29007__b694017416572">O&M</strong>. In the navigation pane on the left, choose <strong id="ALM-29007__b59401846573">Log</strong> > <strong id="ALM-29007__b109404445710">Download</strong>.</span></li><li id="ALM-29007__li27049781154249"><span>Expand the <strong id="ALM-29007__b149911610572">Service</strong> drop-down list, and select <strong id="ALM-29007__b74991264575">Impala</strong> for the target cluster.</span></li><li id="ALM-29007__li1498212919436"><span>Click the edit icon in the upper right corner, and set <strong id="ALM-29007__b935629185712">Start Date</strong> and <strong id="ALM-29007__b53568916572">End Date</strong> for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-29007__b33564918571">Download</strong>.</span></li><li id="ALM-29007__li56393916154249"><span>Contact <span id="ALM-29007__text16720101425714">O&M personnel</span> and provide the collected logs.</span></li></ol>
|
|
</div>
|
|
<div class="section" id="ALM-29007__section169311343318"><h4 class="sectiontitle">Alarm Clearance</h4><p id="ALM-29007__p55781648135011">The alarm is automatically cleared after the burst concurrent tasks are complete.</p>
|
|
</div>
|
|
<div class="section" id="ALM-29007__section53362350"><h4 class="sectiontitle">Related Information</h4><p id="ALM-29007__p7522741">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>
|
|
|