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https://issues.apache.org/jira/browse/YARN-4090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15860008#comment-15860008
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Yufei Gu commented on YARN-4090:
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Thanks [~zsl2007].
I think you get it covered. Things might affect resource usage would be:
# Submit an application
# Allocate tasks
# Move app from one queue to another
# Complete containers (both apps and tasks finish)
# Preempt containers
# Nodes are down, this might not affect it directly, need to double check.
Thanks Ray for pointing out.
I could miss something. Correct me if you have anything else. I guess the test
cases need to cover these. We might not need to worry about queue deletion
since it seems not supported.
YARN-4691 is about same thing for FSLeafQueue. Make sense to me to combine
YARN-4691 in this JIRA.
> 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: zhangshilong
> Attachments: sampling1.jpg, sampling2.jpg, YARN-4090.001.patch,
> YARN-4090.002.patch, YARN-4090.003.patch, YARN-4090.004.patch,
> YARN-4090.005.patch, YARN-4090.006.patch, YARN-4090-preview.patch,
> YARN-4090-TestResult.pdf
>
>
> Collections.sort() consumes too much time in a scheduling round.
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