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https://issues.apache.org/jira/browse/YARN-9041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16709077#comment-16709077
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Hudson commented on YARN-9041:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15558 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15558/])
YARN-9041. Performance Optimization of method (yufei: rev
e89941fdbb3b382eeb487d32e5194909610ac334)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairSchedulerPreemption.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSPreemptionThread.java
> Performance Optimization of method
> FSPreemptionThread#identifyContainersToPreempt
> ---------------------------------------------------------------------------------
>
> Key: YARN-9041
> URL: https://issues.apache.org/jira/browse/YARN-9041
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler, scheduler preemption
> Affects Versions: 3.1.1
> Reporter: Wanqiang Ji
> Assignee: Wanqiang Ji
> Priority: Major
> Fix For: 3.2.1
>
> Attachments: YARN-9041.001.patch, YARN-9041.002.patch,
> YARN-9041.003.patch, YARN-9041.004.patch, YARN-9041.005.patch,
> YARN-9041.006.patch, YARN-9041.007.patch
>
>
> In FSPreemptionThread#identifyContainersToPreempt method, I suggest if AM
> preemption, and locality relaxation is allowed, then the search space is
> expanded to all nodes changed to the remaining nodes. The remaining nodes are
> equal to all nodes minus the potential nodes.
> Judging condition changed to:
> # rr.getRelaxLocality()
> # !ResourceRequest.isAnyLocation(rr.getResourceName())
> # bestContainers != null
> # bestContainers.numAMContainers > 0
> If I understand the deviation, please criticize me. thx~
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