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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-323) Improve the way job history files are managed
Date Mon, 30 Aug 2010 07:35:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12904100#action_12904100
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Amareshwari Sriramadasu commented on MAPREDUCE-323:
---------------------------------------------------

bq. TestJobCleanup was leaving behind files that were causing TestJobOutputCommitter to fail.
I fixed that.
Dick, Can you put this patch on MAPREDUCE-2032? We can get it in faster as this jira would
take more time for reviews. 

> Improve the way job history files are managed
> ---------------------------------------------
>
>                 Key: MAPREDUCE-323
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-323
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.21.0, 0.22.0
>            Reporter: Amar Kamat
>            Assignee: Dick King
>            Priority: Critical
>         Attachments: MR323--2010-08-20--1533.patch, MR323--2010-08-25--1632.patch, MR323--2010-08-27--1359.patch,
MR323--2010-08-27--1613.patch
>
>
> Today all the jobhistory files are dumped in one _job-history_ folder. This can cause
problems when there is a need to search the history folder (job-recovery etc). It would be
nice if we group all the jobs under a _user_ folder. So all the jobs for user _amar_ will
go in _history-folder/amar/_. Jobs can be categorized using various features like _jobid,
date, jobname_ etc but using _username_ will make the search much more efficient and also
will not result into namespace explosion. 

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