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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 Mon, 13 Jul 2015 17:35:04 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14625001#comment-14625001
] 

Ray Chiang commented on MAPREDUCE-6394:
---------------------------------------

RE: checkstyle

- Redundant 'public' modified matches previous declarations
- For long lines in method names, those aren't fixed by breaking into two lines.  Keeping
a single line for readability.


> 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
>
>
> 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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