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doc-exports/docs/dws/dev/dws_04_1064.html
luhuayi 177cd61a57 DWS DEVG 910.211 version
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: luhuayi <luhuayi@huawei.com>
Co-committed-by: luhuayi <luhuayi@huawei.com>
2025-05-05 07:44:03 +00:00

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<h1 class="topictitle1">GS_QUERY_MONITOR</h1>
<div id="body0000001579382737"><p id="EN-US_TOPIC_0000001764491908__p16495186818">Displays the running/queuing information and resource usage of ongoing queries. Only queuing and running jobs are displayed. This view can be queried only on CNs and displays only the monitoring information about the main statement. This view is supported only by clusters of 8.2.1.100 and later versions.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001764491908__table9446192117461" frame="border" border="1" rules="all"><caption><b>Table 1 </b>GS_QUERY_MONITOR columns</caption><thead align="left"><tr id="EN-US_TOPIC_0000001764491908__row1544642110461"><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.2.2.4.1.1"><p id="EN-US_TOPIC_0000001764491908__p1359922545010"><strong id="EN-US_TOPIC_0000001764491908__b17580827424362">Column</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.2.2.4.1.2"><p id="EN-US_TOPIC_0000001764491908__p3599182520502">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="60%" id="mcps1.3.2.2.4.1.3"><p id="EN-US_TOPIC_0000001764491908__p175991225195015">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001764491908__row7673195917276"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p12673959182714">usename</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p967310598277">Name</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p1267318597273">Name of the user who performs the query.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row1156104172811"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p125622412282">nodename</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p175627418288">Name</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p7562184132810">Name of the CN that executes the query.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row20599165582815"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p10600165552812">nodegroup</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p2060085592819">Name</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p160011551284">Name of the cluster where the query is performed. The default cluster name is <strong id="EN-US_TOPIC_0000001764491908__b13980996216">installation</strong>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row964375111284"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p4643185142814">rpname</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p5643175118282">Name</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p1864325115281">Name of the resource pool associated with the query.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row2732192616283"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p073282618283">priority</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p11732162662817">Name</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p127321026112815">Priority of the query, which can be <strong id="EN-US_TOPIC_0000001764491908__b14759912165">Rush</strong>, <strong id="EN-US_TOPIC_0000001764491908__b115043152065">High</strong>, <strong id="EN-US_TOPIC_0000001764491908__b1431913181963">Medium</strong>, and <strong id="EN-US_TOPIC_0000001764491908__b1489118218619">Low</strong>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row15807522132814"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p16807182272812">xact_start</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p188071822102810">Timestamp</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p98072022192811">Start time of the transaction to which the query belongs.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row925310122283"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p7253121252820">query_start</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p425371272812">Timestamp</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p72535125285">Start time of query execution.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row261817594353"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p761895913520">block_time</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p161975915355">Bigint</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p18619195910350">Accumulated queuing time of jobs. Stored procedures and multi-statement task may be queued for multiple times. Unit: second.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row6330115614351"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p83301956203517">duration</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p8330356133518">Bigint</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p1233017566352">Running time of a job, excluding the queuing time. Unit: second.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row185518572815"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p955155152811">query_band</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p255185142815">Text</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p205575182818">Job ID, which can be set using the GUC parameter <strong id="EN-US_TOPIC_0000001764491908__b116011651886">query_band</strong>. By default, this parameter is left blank.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row18495130163610"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p14495133013618">attribute</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p204951430123614">Text</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p491253153514">Job attributes:</p>
<ul id="EN-US_TOPIC_0000001764491908__ul1153615218252"><li id="EN-US_TOPIC_0000001764491908__li653615214259"><strong id="EN-US_TOPIC_0000001764491908__b1974917381215">Simple</strong>: simple job.</li><li id="EN-US_TOPIC_0000001764491908__li553712182517"><strong id="EN-US_TOPIC_0000001764491908__b321663128">Complicated</strong>: complex job.</li></ul>
<p id="EN-US_TOPIC_0000001764491908__p4738145218360">This column is invalid before a job is under resource pool management and control. This column is valid only when the job is under or has been under resource pool management and control.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row14534122718368"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p1753416273367">lane</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p153482743616">Text</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p953472743614">Resource pool lane where a job is queued or executed:</p>
<ul id="EN-US_TOPIC_0000001764491908__ul184442137253"><li id="EN-US_TOPIC_0000001764491908__li8444161315259"><strong id="EN-US_TOPIC_0000001764491908__b1313813246222">fast</strong>: fast lane.</li><li id="EN-US_TOPIC_0000001764491908__li7444181310251"><strong id="EN-US_TOPIC_0000001764491908__b2131807343101647">slow</strong>: slow lane.</li></ul>
<p id="EN-US_TOPIC_0000001764491908__p14337105619480">This column is invalid before a job is under resource pool management and control. This column is valid only when the job is under or has been under resource pool management and control.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row1014462411368"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p1114462420369">status</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p2144142463617">Text</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p614542413619">Current status of a job. The value can be <strong id="EN-US_TOPIC_0000001764491908__b0829151102312">pending</strong> or <strong id="EN-US_TOPIC_0000001764491908__b426021413232">running</strong>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row2622122013365"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p166221200362">queue</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p662212019368">Text</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p1662219203362">Job queuing information:</p>
<ul id="EN-US_TOPIC_0000001764491908__ul7193182782511"><li id="EN-US_TOPIC_0000001764491908__li81946279251"><strong id="EN-US_TOPIC_0000001764491908__b16517125102313">None</strong>: The job is running.</li><li id="EN-US_TOPIC_0000001764491908__li121946270255"><strong id="EN-US_TOPIC_0000001764491908__b175461928152318">Global</strong>: The job is queued in the global queue of the CN.</li><li id="EN-US_TOPIC_0000001764491908__li2194027102518"><strong id="EN-US_TOPIC_0000001764491908__b888084782316">Respool</strong>: The job is queued in the resource pool.</li><li id="EN-US_TOPIC_0000001764491908__li1619432718258"><strong id="EN-US_TOPIC_0000001764491908__b1928593182419">CCN</strong>: The job is queued in the CCN.</li></ul>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row44721582368"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p16472115812363">used_mem</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p7472135803615">Integer</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p17472558103610">Maximum peak memory usage of a job across all DNs. The unit is MB.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row590691618378"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p7906916173719">estimate_mem</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p490610168372">Integer</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p18906111603713">Estimated memory of a job. The unit is MB.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row1908141343713"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p11908613113714">used_cpu</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p1190821353716">Double precision</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p1390811319374">Average number of CPU cores occupied by a job since the job starts to run.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row399241013372"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p119921610193719">read_speed</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p12992141010372">Integer</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p4992210163719">Average logical I/O read rate of a job on all DNs. The unit is KB/s.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row11204853712"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p812098143719">write_speed</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p161207810377">Integer</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p71205823715">Average logical I/O write rate of a job on all DNs. The unit is KB/s.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row1690517413719"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p1890611433719">send_speed</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p190613403715">Integer</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p1490654143714">Average transmit rate on all DNs since a job starts to run. The unit is KB/s.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row1372419153819"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p1237221911389">recv_speed</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p183721919183819">Integer</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p537331910388">Average receive rate on all DNs since a job starts to run. The unit is KB/s.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row2375161619387"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p73755169381">dn_count</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p33756165388">Bigint</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p637510161388">Number of DNs that execute the job.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row121051013173813"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p7105141312383">stream_count</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p41051113173818">Bigint</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p15105813103810">Total number of stream threads of a job on all DNs.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row850618108389"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p16506151017385">pid</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p1950631083810">Bigint</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p18506310123811">ID of the backend thread</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row6915377383"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p1691620743819">lwtid</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p1391615783812">Integer</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p1391611783810">Lightweight thread ID of a background thread.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001764491908__row821613593813"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p22163519387">query_id</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p1621655113810">Bigint</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p52168563817">Query ID.</p>
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<tr id="EN-US_TOPIC_0000001764491908__row103519213816"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p15361321385">unique_sql_id</p>
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<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p193642193820">Bigint</p>
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<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p936524383">ID of the normalized unique SQL.</p>
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<tr id="EN-US_TOPIC_0000001764491908__row612665918376"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001764491908__p15126105963720">query</p>
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<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001764491908__p11126155919376">Text</p>
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<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001764491908__p131262595373">Query that is being executed.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_04_0639.html">System Views</a></div>
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