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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4629) In DEBUG_MODE, JobHistory#directoryTime() returns incorrect time
Date Thu, 06 Sep 2012 21:36:08 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13450070#comment-13450070
] 

Robert Joseph Evans commented on MAPREDUCE-4629:
------------------------------------------------

DEBUG_MODE for the history server is present also in trunk and 2.0 as well.

I don't believe that anyone is using it, but there could be a few people using it to test
the history server outside of Hadoop proper.  I am +1 for removing it.  I don't see much of
a reason to change anything at this point except to rip it out, and amybe make the debug-printing
LOG.debug.  If someone else wants similar functionality for testing we can add in targeted
configs to do things like what Karthik is suggesting.
                
> In DEBUG_MODE, JobHistory#directoryTime() returns incorrect time
> ----------------------------------------------------------------
>
>                 Key: MAPREDUCE-4629
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4629
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 1.0.3
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>         Attachments: MR-4629.patch, MR-4629.patch.v1
>
>
> The helper methods in JobHistory - directoryTime() and timestampDirectoryComponent()
- adjust the month field for readability (Jan is 0 as per Calendar, 1 for us)
> In DEBUG_MODE, JobHistory uses hour instead of month. However, the adjustment is still
applied.

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