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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-381) keeping files for tasks that match regex on task id
Date Tue, 25 Jul 2006 07:57:14 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-381?page=all ]

Doug Cutting resolved HADOOP-381.
---------------------------------

    Resolution: Fixed

I just committed this.  Thanks, Owen!

> keeping files for tasks that match regex on task id
> ---------------------------------------------------
>
>                 Key: HADOOP-381
>                 URL: http://issues.apache.org/jira/browse/HADOOP-381
>             Project: Hadoop
>          Issue Type: New Feature
>          Components: mapred
>    Affects Versions: 0.4.0
>            Reporter: Owen O'Malley
>         Assigned To: Owen O'Malley
>             Fix For: 0.5.0
>
>         Attachments: keep-task-file-pattern.patch
>
>
> For debugging map/reduce jobs, if a single task is producing bad results, but *not* failing,
it is hard to debug the problem. This patch lets you set a pattern for task ids that will
keep their files from being deleted when the task and job complete. This allows the developer
to run the task in the IsolationRunner under the debugger.

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