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Documents the Kill Query statements used to stop running queries by using their unique query IDs. Change-Id: I51efbdeb585bad358b3e44ea4f555f62bfee4f00 Reviewed-on: http://gerrit.cloudera.org:8080/23031 Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
60 lines
2.6 KiB
XML
60 lines
2.6 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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specific language governing permissions and limitations
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under the License.
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-->
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<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="impala_kill_query" rev="4.5.0 IMPALA-12648">
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<title>KILL QUERY Statements</title>
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<titlealts audience="PDF">
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<navtitle>KILL QUERY</navtitle>
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</titlealts>
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<prolog>
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<metadata>
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<data name="Category" value="Impala"/>
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<data name="Category" value="SQL"/>
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<data name="Category" value="Kill Query"/>
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<data name="Category" value="Data Analysts"/>
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<data name="Category" value="Developers"/>
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<data name="Category" value="Tables"/>
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<data name="Category" value="ETL"/>
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</metadata>
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</prolog>
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<conbody>
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<p>The <codeph>KILL QUERY</codeph> statement allows you to programmatically terminate running
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queries by specifying their query ids. This functionality helps manage workloads by enabling
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users to cancel and unregister queries across any coordinator in the cluster.</p>
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<p>
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<b>Syntax:</b>
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</p>
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<codeblock id="codeblock_vjr_mry_52c">KILL QUERY '<varname>query_id</varname>';</codeblock>
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<p>Replace '<varname>query_id</varname>' with the query id you want to terminate.</p>
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<p><b>Example:</b></p>
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<codeblock id="codeblock_jfk_sry_52c">KILL QUERY '123:456';</codeblock>
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<p><varname>query_id</varname> represents a query that is currently executing in the system.</p>
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<p><b>Required privileges</b>: Only administrators or query owners can execute <codeph>KILL
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QUERY</codeph>.</p>
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<p><b>Cancellation</b>: Cannot be cancelled.</p>
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<p><b>Considerations</b>: If the specified query is not found on any of the coordinators in the
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cluster, a <codeph>Could not find query on any coordinator</codeph> error is returned.</p>
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<p>
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<b>Added in:</b>
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<keyword keyref="impala45"/>
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</p>
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</conbody>
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</concept>
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