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https://issues.apache.org/jira/browse/YARN-4090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15280653#comment-15280653
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Yufei Gu commented on YARN-4090:
--------------------------------
Thanks, [~xinxianyin]! Looks really good. All three previous test failures are
solved. The override of {{move()}} is a reasonable solution.
Minor nit, do you mean "bring down" or "decrease" when you said "write
down" in this comment?
<quote>
// do not decResource when the container exited in the preemptionMap
// before because we have written down the resource when adding the
// container to preemptionMap in this#addPreemption.
<quote>
[~kasha], wanna take a look?
> Make Collections.sort() more efficient in FSParentQueue.java
> ------------------------------------------------------------
>
> Key: YARN-4090
> URL: https://issues.apache.org/jira/browse/YARN-4090
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler
> Reporter: Xianyin Xin
> Assignee: Xianyin Xin
> Attachments: YARN-4090-TestResult.pdf, YARN-4090-preview.patch,
> YARN-4090.001.patch, sampling1.jpg, sampling2.jpg
>
>
> Collections.sort() consumes too much time in a scheduling round.
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