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From "Ray Chiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6376) Fix long load times of .jhist file in JobHistoryServer
Date Wed, 17 Jun 2015 20:56:01 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14590583#comment-14590583
] 

Ray Chiang commented on MAPREDUCE-6376:
---------------------------------------

[~jlowe], this JHS speedup should have the least side effects (unlike MAPREDUCE-6222 and MAPREDUCE-6394).
 Let me know what you think when you have time.  Thanks.

> Fix long load times of .jhist file in JobHistoryServer
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-6376
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6376
>             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-6376.001.patch, MAPREDUCE-6376.002.patch, MAPREDUCE-6376.003.patch
>
>
> When you click on a Job link in the JHS Web UI, it loads the .jhist file.  For jobs which
have a large number of tasks, the load time can break UI responsiveness.



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