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From "Ray Chiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6394) Speed up Task processing loop in HsTasksBlock#render()
Date Tue, 28 Jul 2015 04:21:05 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643829#comment-14643829

Ray Chiang commented on MAPREDUCE-6394:

Thanks again.  I'll update the tests.

And I was assuming for now that doing setCounters would always override any setting by setRawCounters--preserving
legacy behavior.  I'll update the tests to cover that as well.

> Speed up Task processing loop in HsTasksBlock#render()
> ------------------------------------------------------
>                 Key: MAPREDUCE-6394
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6394
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: jobhistoryserver
>    Affects Versions: 2.7.0
>            Reporter: Ray Chiang
>            Assignee: Ray Chiang
>              Labels: supportability
>         Attachments: MAPREDUCE-6394.001.patch, MAPREDUCE-6394.002.patch, MAPREDUCE-6394.003.patch,
MAPREDUCE-6394.004.patch, MAPREDUCE-6394.005.patch, MAPREDUCE-6394.006.patch, MAPREDUCE-6394.007.patch
> In HsTasksBlock#render(), there is a loop to create a Javascript table which slows down
immensely on jobs with a large number of tasks (200k or more).

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