[ http://issues.apache.org/jira/browse/HADOOP-3?page=all ]
Doug Cutting resolved HADOOP-3:
-------------------------------
Resolution: Fixed
I just committed this. I converted under_scored variable names to camelCase.
> Output directories are not cleaned up before the reduces run
> ------------------------------------------------------------
>
> Key: HADOOP-3
> URL: http://issues.apache.org/jira/browse/HADOOP-3
> Project: Hadoop
> Type: Bug
> Components: mapred
> Versions: 0.1
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Priority: Minor
> Fix For: 0.1
> Attachments: clean-out-dir.patch, noclobber.patch
>
> The output directory for the reduces is not cleaned up and therefore if you
> can see left overs from previous runs, if they had more reduces. For example,
> if you run the application once with reduces=10 and then rerun with
> reduces=8, your output directory will have frag00000 to frag00009 with the
> first 8 fragments from the second run and the last 2 fragments from the first
> run.
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