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Yang, Tong
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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>
84 lines
8.6 KiB
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84 lines
8.6 KiB
HTML
<a name="ALM-45438"></a><a name="ALM-45438"></a>
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<h1 class="topictitle1">ALM-45438 ClickHouse Disk Usage Exceeds 80%</h1>
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<div id="body1559128174373"><div class="note" id="ALM-45438__note14744151615401"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="ALM-45438__p1431519566">This section applies only to MRS 3.3.0 or later.</p>
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</div></div>
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<div class="section" id="ALM-45438__section16899242162213"><h4 class="sectiontitle"><span id="ALM-45438__text14838183534515">Alarm Description</span></h4><p id="ALM-45438__p182761827181">The system checks the disk capacity of the ClickHouseServer node every 1 minute. This alarm is generated when the usage of the disk where the ClickHouse data directory or metadata directory resides exceeds 80%.</p>
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<p id="ALM-45438__p88950108215">This alarm is automatically cleared when the usage of the disk where the ClickHouse data directory or metadata directory is located is lower than 80%.</p>
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</div>
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<div class="section" id="ALM-45438__section7625192211"><h4 class="sectiontitle"><span id="ALM-45438__text66488119489">Alarm Attributes</span></h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-45438__table121116271288" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-45438__row1427611277820"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.3.2.1.4.1.1"><p id="ALM-45438__p927662712816"><span id="ALM-45438__text1074744511529">Alarm ID</span></p>
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<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.3.2.1.4.1.2"><p id="ALM-45438__p1027614271817"><span id="ALM-45438__text529420513457">Alarm Severity</span></p>
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<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.3.2.1.4.1.3"><p id="ALM-45438__p82761227186"><span id="ALM-45438__text139206232502">Auto Cleared</span></p>
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<tbody><tr id="ALM-45438__row92762279818"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.3.2.1.4.1.1 "><p id="ALM-45438__p162761427082">45438</p>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.3.2.1.4.1.2 "><p id="ALM-45438__p227610275811">Major</p>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.3.2.1.4.1.3 "><p id="ALM-45438__p7276172714812">Yes</p>
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</div>
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<div class="section" id="ALM-45438__section13677142112315"><h4 class="sectiontitle"><span id="ALM-45438__text0580183514489">Alarm Parameters</span></h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="ALM-45438__table132164271583" frame="border" border="1" rules="all"><thead align="left"><tr id="ALM-45438__row92761127482"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.4.2.1.3.1.1"><p id="ALM-45438__p12276527485"><span id="ALM-45438__text12210145419505">Parameter</span></p>
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<th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.4.2.1.3.1.2"><p id="ALM-45438__p72767277812"><span id="ALM-45438__text1971012173566">Description</span></p>
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<tbody><tr id="ALM-45438__row1427616274819"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.1 "><p id="ALM-45438__p162761627283">Source</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.2 "><p id="ALM-45438__p1427611271585">Specifies the cluster or system for which the alarm is generated.</p>
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<tr id="ALM-45438__row5276827783"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.1 "><p id="ALM-45438__p52764271086">ServiceName</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.2 "><p id="ALM-45438__p32763271180">Specifies the service for which the alarm is generated.</p>
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<tr id="ALM-45438__row2027616271585"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.1 "><p id="ALM-45438__p122762271287">RoleName</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.2 "><p id="ALM-45438__p2276327885">Specifies the role for which the alarm is generated.</p>
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<tr id="ALM-45438__row5276202713819"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.1 "><p id="ALM-45438__p202768273810">HostName</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.2 "><p id="ALM-45438__p1227618271580">Specifies the host for which the alarm is generated.</p>
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</td>
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<tr id="ALM-45438__row37281842173210"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.1 "><p id="ALM-45438__p37286421329">DiskPath</p>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.1.3.1.2 "><p id="ALM-45438__p10728642103211">Specifies the path of the disk for which the alarm is generated.</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-45438__section3610161112317"><h4 class="sectiontitle"><span id="ALM-45438__text1127833410585">Impact on the System</span></h4><p id="ALM-45438__p11277127489">The ClickHouse write operation may fail.</p>
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</div>
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<div class="section" id="ALM-45438__section919011910231"><h4 class="sectiontitle"><span id="ALM-45438__text10245783115">Possible Causes</span></h4><p id="ALM-45438__p180614392102">The disk capacity of the ClickHouseServer node is too small.</p>
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</div>
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<div class="section" id="ALM-45438__section7242948585"><h4 class="sectiontitle"><span id="ALM-45438__text35421632154">Handling Procedure</span></h4><ol id="ALM-45438__ol14303175512411"><li id="ALM-45438__li2655131716563"><span>Log in to FusionInsight Manager, choose <strong id="ALM-45438__b11996143910347">O&M</strong> > <strong id="ALM-45438__b499663983415">Alarm</strong> > <strong id="ALM-45438__b799715391341">Alarms</strong>, and view the role name and the IP address for the hostname in <strong id="ALM-45438__b7997133973418">Location</strong>.</span></li><li id="ALM-45438__li2080719511561"><span>Expand the disk capacity of the node for which the alarm is generated.</span></li><li id="ALM-45438__li11709154612419"><span>Go to <a href="#ALM-45438__li153021955172417">4</a> if the expansion fails or the alarm persists after the expansion.</span></li></ol>
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<p id="ALM-45438__p7678135319232"><strong id="ALM-45438__b752618012376">Collect fault information.</strong></p>
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<ol start="4" id="ALM-45438__ol1030219559241"><li id="ALM-45438__li153021955172417"><a name="ALM-45438__li153021955172417"></a><a name="li153021955172417"></a><span>On FusionInsight Manager, choose <strong id="ALM-45438__b1296818227376">O&M</strong>. In the navigation pane on the left, choose <strong id="ALM-45438__b9968132218371">Log</strong> > <strong id="ALM-45438__b1696912223713">Download</strong>.</span></li><li id="ALM-45438__li13302125522416"><span>Expand the <strong id="ALM-45438__b5244424143717">Service</strong> drop-down list, and select <strong id="ALM-45438__b62441924193713">ClickHouse</strong> for the target cluster.</span></li><li id="ALM-45438__li730216554243"><span>Expand the <strong id="ALM-45438__b111242693714">Hosts</strong> drop-down list. In the <strong id="ALM-45438__b151124264373">Select Host</strong> dialog box that is displayed, select the abnormal host, and click <strong id="ALM-45438__b1411242611378">OK</strong>.</span></li><li id="ALM-45438__li18302105517248"><span>Click the edit icon in the upper right corner, and set <strong id="ALM-45438__b1579411291506">Start Date</strong> and <strong id="ALM-45438__b8794929601">End Date</strong> for log collection to 1 hour ahead of and after the alarm generation time, respectively. Then, click <strong id="ALM-45438__b57946291108">Download</strong>.</span></li><li id="ALM-45438__li330245532414"><span>Contact <span id="ALM-45438__text4972173593715">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-45438__section101419392510"><h4 class="sectiontitle"><span id="ALM-45438__text976142215819">Alarm Clearance</span></h4><p id="ALM-45438__p1014737253">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-45438__section891955662611"><h4 class="sectiontitle"><span id="ALM-45438__text13373191116114">Related Information</span></h4><p id="ALM-45438__p139191756122619"><span id="ALM-45438__text13669101910115">None.</span></p>
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</div>
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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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