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https://issues.apache.org/jira/browse/MAPREDUCE-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13447886#comment-13447886
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Karthik Kambatla commented on MAPREDUCE-4629:
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>From my conversation with Alejandro offline:
More context:
- The regular mode cleans up the history files after a month. The history
filenames use yyyy/mm/dd.
- The debug mode cleans up the history files after 20 minutes. The history
filenames (currently) use yyyy/hour/min.
The DEBUG_MODE overloads the regular mode. Instead, a better approach seems to
be to append to the regular mode, instead of overloading it.
Also, the config parameter to turn the DEBUG_MODE on/off
mapreduce.jobhistory.debug.mode doesn't have a default in mapred-default.xml
and needs to be added.
> 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
>
>
> 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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