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Message-ID: <28536672.33621282925040919.JavaMail.jira@thor>
Date: Fri, 27 Aug 2010 12:04:00 -0400 (EDT)
From: "Dick King (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Updated: (MAPREDUCE-323) Improve the way job history files
 are managed
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     [ https://issues.apache.org/jira/browse/MAPREDUCE-323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dick King updated MAPREDUCE-323:
--------------------------------

    Status: Open  (was: Patch Available)

Cancelling, pending investigation of some unit test failures:

  TestRumenJobTraces  --  test case should use new API

  TestJobOutputCommitter
  TestTaskLauncher

expect to fix in a few hours

> 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
>
>
> 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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