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From "Daniel Templeton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4090) Make Collections.sort() more efficient by caching resource usage
Date Tue, 22 Aug 2017 20:24:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-4090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16137346#comment-16137346
] 

Daniel Templeton commented on YARN-4090:
----------------------------------------

Thanks for moving this JIRA forward, [~yufeigu].  This sounds like an important improvement
that I'd like to see make it in by 3.0 beta 1.  Beta 1 will be cut on 15th September 2017,
so we'll need to move quickly.  [~zsl2007], would it be alright with you if [~yufeigu] takes
this JIRA over, or do you think you'll be able to wrap it up in the next 3 weeks?

> Make Collections.sort() more efficient by caching resource usage
> ----------------------------------------------------------------
>
>                 Key: YARN-4090
>                 URL: https://issues.apache.org/jira/browse/YARN-4090
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          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-4090.007.patch,
YARN-4090-preview.patch, YARN-4090-TestResult.pdf
>
>
> Collections.sort() consumes too much time in a scheduling round.



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