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https://issues.apache.org/jira/browse/YARN-6944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16113699#comment-16113699
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Chris Douglas commented on YARN-6944:
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bq. Monitors don't handle preemption.
[They|https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/SchedulingEditPolicy.java]
[do|https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/capacity/ProportionalCapacityPreemptionPolicy.java#L82].
> The comment about ResourceManager#createPolicyMonitors lies
> -----------------------------------------------------------
>
> Key: YARN-6944
> URL: https://issues.apache.org/jira/browse/YARN-6944
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.8.1, 3.0.0-alpha3
> Reporter: Yufei Gu
> Priority: Trivial
>
> {code}
> // creating monitors that handle preemption
> createPolicyMonitors();
> {code}
> Monitors don't handle preemption.
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