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Posted to yarn-issues@hadoop.apache.org by "Wanqiang Ji (JIRA)" <ji...@apache.org> on 2018/11/21 00:06:00 UTC
[jira] [Created] (YARN-9041) Optimize
FSPreemptionThread#identifyContainersToPreempt method
Wanqiang Ji created YARN-9041:
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Summary: Optimize FSPreemptionThread#identifyContainersToPreempt method
Key: YARN-9041
URL: https://issues.apache.org/jira/browse/YARN-9041
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Wanqiang Ji
Assignee: Wanqiang Ji
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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