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doc-exports/docs/geminidb/api-ref/nosql_08_0001.html
Ru, Li Yi 37b97ffc06 geminidb_api 
Reviewed-by: Boka, Ladislav <ladislav.boka@t-systems.com>
Co-authored-by: Ru, Li Yi <liyiru7@huawei.com>
Co-committed-by: Ru, Li Yi <liyiru7@huawei.com>
2024-07-04 11:26:33 +00:00

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<a name="nosql_08_0001"></a><a name="nosql_08_0001"></a>
<h1 class="topictitle1">Events Supported by Event Monitoring</h1>
<div id="body0000001504778632">
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="nosql_08_0001__table1671911811138" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Events Supported by Event Monitoring for <span id="nosql_08_0001__text1243219510156">GeminiDB</span></caption><thead align="left"><tr id="nosql_08_0001__en-us_topic_0000001555986013_row090615811138"><th align="left" class="cellrowborder" valign="top" width="9.81%" id="mcps1.3.1.2.8.1.1"><p id="nosql_08_0001__en-us_topic_0000001555986013_p149061887136">Event Source</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="15.4%" id="mcps1.3.1.2.8.1.2"><p id="nosql_08_0001__en-us_topic_0000001555986013_p990648111318">Event Name</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="12.26%" id="mcps1.3.1.2.8.1.3"><p id="nosql_08_0001__en-us_topic_0000001555986013_p990620851310">Event ID</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="8.5%" id="mcps1.3.1.2.8.1.4"><p id="nosql_08_0001__en-us_topic_0000001555986013_p15906688133">Event Severity</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="23.369999999999997%" id="mcps1.3.1.2.8.1.5"><p id="nosql_08_0001__en-us_topic_0000001555986013_p129062861320">Description</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20.22%" id="mcps1.3.1.2.8.1.6"><p id="nosql_08_0001__en-us_topic_0000001555986013_p29063881317">Solution</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="10.440000000000001%" id="mcps1.3.1.2.8.1.7"><p id="nosql_08_0001__en-us_topic_0000001555986013_p1390613814132">Impact</p>
</th>
</tr>
</thead>
<tbody><tr id="nosql_08_0001__en-us_topic_0000001555986013_row090615817132"><td class="cellrowborder" rowspan="33" valign="top" width="9.81%" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p690798101315">NoSQL</p>
</td>
<td class="cellrowborder" valign="top" width="15.4%" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p290711811318">Instance creation failure</p>
</td>
<td class="cellrowborder" valign="top" width="12.26%" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1090717801318">NoSQLCreateInstanceFailed</p>
</td>
<td class="cellrowborder" valign="top" width="8.5%" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p5907185135">Major</p>
</td>
<td class="cellrowborder" valign="top" width="23.369999999999997%" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1090778141319">The instance quota or underlying resources are insufficient.</p>
</td>
<td class="cellrowborder" valign="top" width="20.22%" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p199072087131">Release the instances that are no longer used and try to provision them again, or submit a service ticket to adjust the quota.</p>
</td>
<td class="cellrowborder" valign="top" width="10.440000000000001%" headers="mcps1.3.1.2.8.1.7 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p890713812131">Instances fail to be created.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row19072816136"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p109078814134">Specifications change failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p189071283135">NoSQLResizeInstanceFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p590788111317">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1190812851311">The underlying resources are insufficient.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p18908128171317">Submit a service ticket to ask O&amp;M personnel to coordinate resources, and then try again.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p79088851317">Services are interrupted.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row1690820817132"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1290812871314">Node adding failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p99086861315">NoSQLAddNodesFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1908138111311">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p19908883139">The underlying resources are insufficient.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p69081181138">Submit a service ticket to ask O&amp;M personnel to coordinate resources, delete the node that failed to be added, and add a new one.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p790819851310">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row39080841318"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p14908284139">Node deletion failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p209086814138">NoSQLDeleteNodesFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1390911891311">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1090911815139">Releasing underlying resources failed.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p49098820138">Delete the node again.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p209092089138">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row09096817139"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p590998161317">Storage space scale-up failure</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p11909184138"></p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1190908101320">NoSQLScaleUpStorageFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1290917818137">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p20909168121319">The underlying resources are insufficient.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p590912816139">Submit a service ticket to ask O&amp;M personnel to coordinate resources, and then try again.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p09095820133">Services may be interrupted.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row179092087139"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p49100811132">Password resetting failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p59101782133">NoSQLResetPasswordFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1391098121316">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p199101381130">Resetting the password times out.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p129101983133">Reset the password again.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1991048111312">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row1291011814138"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1291016814134">Parameter template change failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p119101788137">NoSQLUpdateInstanceParamGroupFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p149108881318">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p69101871310">Changing a parameter template times out.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p179101389134">Change the parameter template again.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p16910118111317">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row16910585134"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1691088181312">Backup policy configuration failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1691019811320">NoSQLSetBackupPolicyFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p491114841310">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p991117811315">The database connection is abnormal.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p159117841315">Configure the backup policy again.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p19911688132">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row6911178151312"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p691119861317">Manual backup creation failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p13911178111320">NoSQLCreateManualBackupFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p14911086131">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p791116811132">The backup files fail to be exported or uploaded.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p129111884133">Submit a service ticket to O&amp;M personnel.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p49111813131">Data cannot be backed up.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row159111986134"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p159111787136">Automated backup creation failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p4911198161319">NoSQLCreateAutomatedBackupFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p8911168131315">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p19911208171313">The backup files fail to be exported or uploaded.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p129111891318">Submit a service ticket to O&amp;M personnel.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p189125814135">Data cannot be backed up.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row69121981139"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p179122081132">Instance status abnormal</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p791220813136">NoSQLFaultyDBInstance</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p891215810134">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p2912682134">This event is a key alarm event and is reported when an instance is faulty due to a disaster or a server failure.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1291212813137">Submit a service ticket.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p14912158121317">The database service may be unavailable.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row391210801310"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p191238191311">Instance status recovery</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p189129815137">NoSQLDBInstanceRecovered</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1791216871312">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p591316861315">If a disaster occurs, NoSQL provides an HA tool to automatically or manually rectify the fault. After the fault is rectified, this event is reported.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p179135831316">No further action is required.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p29132801312">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row591316818136"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p129131891318">Node status abnormal</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p179135817133">NoSQLFaultyDBNode</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p591313831312">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p17913388135">This event is a key alarm event and is reported when a database node is faulty due to a disaster or a server failure. </p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p159130811313">Check whether the database service is available and submit a service ticket.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1891398141313">The database service may be unavailable.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row20913198121314"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p4913148161315">Node status recovery</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p291398101312">NoSQLDBNodeRecovered</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p49141589134">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p189141182130">If a disaster occurs, NoSQL provides an HA tool to automatically or manually rectify the fault. After the fault is rectified, this event is reported.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1291413871313">No further action is required.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p89145818130">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row1391416801316"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1891419815139">Primary/standby switchover or failover</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p591408161310">NoSQLPrimaryStandbySwitched</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p291428161310">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1691448131312">This event is reported when a primary/secondary switchover or a failover is triggered.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p14914168171318">No further action is required.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p99142861316">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row49148841310"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p591415816130">Occurrence of hotspot partitioning keys</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p10914085133">HotKeyOccurs</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p11914782132">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1491411816139">Hotspot data is stored in one partition because the primary key is improper. Improper application design causes frequent read and write operations on a key.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1191514814137">1. Choose a proper partition key.</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p209151812135">2. Add service cache so that service applications read hotspot data from the cache first.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p14915188131311">The service request success rate is affected, and the cluster performance and stability deteriorates.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row89152080136"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p109158811318">BigKey occurrence</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p12915148121318">BigKeyOccurs</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1991514871314">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p89158821317">The primary key design is improper. There are too many records or too much data in a single partition, causing load imbalance on nodes.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p3915108121316">1. Choose a proper partition key.</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p199151584137">2. Add a new partition key for hashing data.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p209159815134">As more and more data is stored in the partition, cluster stability deteriorates.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row39152811316"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p3915681135">Insufficient storage space</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p199155801319">NoSQLRiskyDataDiskUsage</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1791515841312">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1491518881319">The storage space is insufficient.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p3915083130">Scale up storage space. For details, see section "Scaling Up Storage Space" in the user guide of GeminiDB.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p20915118101317">The instance is set to read-only and data cannot be written to the instance.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row1891548171318"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p3916580134">Data disk expanded and being writable</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p209169851310">NoSQLDataDiskUsageRecovered</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1891648191312">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p4916089130">The data disk has been expanded and becomes writable.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p13916198141317">No further action is required.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1391616891310">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row891678121311"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p991611831317">Index creation failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p191618141310">NoSQLCreateIndexFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p18916588136">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p59169891315">The service load exceeds what the instance specifications can take. In this case, creating indexes consumes more instance resources. As a result, the response is slow or even frame freezing occurs, and the creation times out.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1591611814132">Select matched instance specifications based on service load.</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p19166831313">Create indexes during off-peak hours.</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p1091619818130">Create indexes in the background.</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p6916198191320">Select indexes as required.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p19167831318">The index fails to be created or is incomplete. Delete the index and create a new one.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row6916188131311"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p8916388138">Write speed decrease</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p119163851313">NoSQLStallingOccurs</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1491614851319">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1191618812139">The write speed is close to the maximum write speed allowed by the cluster scale and instance specifications. As a result, the database flow control mechanism is triggered, and requests may fail.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p19166831315">1. Adjust the cluster scale or node specifications based on the maximum write rate of services.</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p159165819139">2. Measure the maximum write rate of services.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p129161788139">The success rate of service requests is affected.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row29161871317"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p49179831315">Data write stopped</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p159178851317">NoSQLStoppingOccurs</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1591719881310">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1491719811316">The data write is too fast, reaching the maximum write capability allowed by the cluster scale and instance specifications. As a result, the database flow control mechanism is triggered, and requests may fail.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p991716851315">1. Change the cluster scale or node specifications based on the maximum write rate of services.</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p89173812133">2. Measure the maximum write rate of services.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p2917387137">The success rate of service requests is affected.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row0917188161310"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p191713871315">Database restart failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p119171801315">NoSQLRestartDBFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p791788121320">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p139175821317">The instance status is abnormal.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1917681133">Submit a service ticket to O&amp;M personnel.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1191718131313">The instance status may be abnormal.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row8917880137"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p209171889132">Restoration to new instance failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p69178816130">NoSQLRestoreToNewInstanceFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p7917283131">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p199171981132">The underlying resources are insufficient.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p159179813134">Submit a service ticket to ask O&amp;M personnel to coordinate resources, and then add new nodes.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p18917158181316">Data cannot be restored to a new instance.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row1791828111315"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p291838121318">Restoration to existing instance failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p18918987134">NoSQLRestoreToExistInstanceFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p159186819135">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p99181683136">The backup file fails to be downloaded or restored.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p7918382131">Submit a service ticket to O&amp;M personnel.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p29189811318">The current instance may be unavailable.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row1191818812131"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p139181780134">Backup file deletion failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1491838111312">NoSQLDeleteBackupFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p491898101311">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p159182813137">The backup files fail to be deleted from OBS.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p199181871318">Delete the backup files again.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p99183881317">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row391888161314"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p991813831311">Failure to display slow query logs in plaintext</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p0918481136">NoSQLSwitchSlowlogPlainTextFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p391868131313">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p791813811311">The DB <span id="nosql_08_0001__text128172312514">API</span> does not support this function.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1491810831312">Refer to the <em id="nosql_08_0001__i373844362815">GeminiDB User Guide</em> to check whether that the DB <span id="nosql_08_0001__text1738104352811">API</span> supports the display of slow query logs in plaintext. Submit a service ticket to O&amp;M personnel.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p139182851317">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row17918108191319"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1591811810133">EIP binding failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p391988201317">NoSQLBindEipFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p189191881319">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p149194818132">The node status is abnormal, an EIP has been bound to the node, or the EIP to be bound is invalid.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1891919891317">Check whether the node is normal and whether the EIP is valid.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p9919189133">The instance cannot be accessed from a public network.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row59191984131"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p191928191312">EIP unbinding failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p791910861313">NoSQLUnbindEipFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1691919871318">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p179191383138">The node status is abnormal or the EIP has been unbound from the node.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p691938161317">Check whether the node and EIP status are normal.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p491968181315">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row09193811137"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p391910812135">Parameter modification failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p3919138181310">NoSQLModifyParameterFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1391917831311">Major</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p3919198131315">The parameter value is invalid.</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1891910831312">Check whether the parameter value is within the valid range and submit a service ticket to O&amp;M personnel.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p692014810138">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row1920789137"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1992011811311">Parameter template application failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1092015871316">NoSQLApplyParameterGroupFailed</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p192028171314">Major</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p79204821317">The instance status is abnormal. So, the parameter template cannot be applied.</p>
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<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p39201980133">Submit a service ticket to O&amp;M personnel.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p129201087132">None</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row79201084135"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p129201489137">Enabling or disabling SSL failure</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p179201585139">NoSQLSwitchSSLFailed</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p139203861311">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p192019831310">Enabling or disabling SSL times out.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p119201684133">Try again or submit a service ticket. Do not change the connection mode.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1892115819133">The SSL connection mode cannot be changed.</p>
</td>
</tr>
<tr id="nosql_08_0001__en-us_topic_0000001555986013_row159211485139"><td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.1 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p1692110831316">Too much data in a single row</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.2 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p10921118201313">LargeRowOccurs</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.3 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p10921188111320">Major</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.4 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p592118814131">If there is too much data in a single row, queries may time out, causing faults like OOM error.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.5 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p17921108101314">1. Limit the write length of each column and row so that the key and value length of each row does not exceed the preset threshold.</p>
<p id="nosql_08_0001__en-us_topic_0000001555986013_p892116812133">2. Check whether there are abnormal writes or coding, causing large rows.</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.1.2.8.1.6 "><p id="nosql_08_0001__en-us_topic_0000001555986013_p109211683133">If there are too many records in a single row, cluster stability will deteriorate as the data volume increases.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="nosql_public_parameters.html">Appendixes</a></div>
</div>
</div>
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