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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4090) Make Collections.sort() more efficient in FSParentQueue.java
Date Tue, 26 Apr 2016 12:04:12 GMT

    [ https://issues.apache.org/jira/browse/YARN-4090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15257957#comment-15257957
] 

Karthik Kambatla commented on YARN-4090:
----------------------------------------

Sorry for the confusion here. We had some issues with YARN-1297 and have moved this part of
the change back here. [~yufeigu] ran into some issues with existing tests. [~xinxianyin] -
are you able to post a patch that passes the tests? 

> 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, sampling1.jpg,
sampling2.jpg
>
>
> Collections.sort() consumes too much time in a scheduling round.



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