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https://issues.apache.org/jira/browse/YARN-9041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16702308#comment-16702308
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Yufei Gu commented on YARN-9041:
--------------------------------
There is an error in test build which isn't related to your patch. I'll review
later.
{code}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-surefire-plugin:3.0.0-M1:test (default-test) on
project hadoop-yarn-server-resourcemanager: There was a timeout or other error
in the fork -> [Help 1]
{code}
> Optimize FSPreemptionThread#identifyContainersToPreempt method
> --------------------------------------------------------------
>
> Key: YARN-9041
> URL: https://issues.apache.org/jira/browse/YARN-9041
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: scheduler preemption
> Reporter: Wanqiang Ji
> Assignee: Wanqiang Ji
> Priority: Major
> Attachments: YARN-9041.001.patch, YARN-9041.002.patch,
> YARN-9041.003.patch, YARN-9041.004.patch, YARN-9041.005.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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