[jira] Commented: (MAPREDUCE-323) Improve the way job history files are managed

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13000674#comment-13000674 ] 

Hadoop QA commented on MAPREDUCE-323:
-------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12454057/MR323--2010-09-07--1636.patch
  against trunk revision 1075422.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 13 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    +1 core tests.  The patch passed core unit tests.

    -1 contrib tests.  The patch failed contrib unit tests.

    -1 system test framework.  The patch failed system test framework compile.

Test results: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/101//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/101//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/101//console

This message is automatically generated.

> 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, MR323--2010-09-07--1636.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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