[ http://issues.apache.org/jira/browse/HADOOP-673?page=comments#action_12455819 ]
Owen O'Malley commented on HADOOP-673:
--------------------------------------
I'm worried about the performance of using getCanonicalFile on every directory during the
recursion, since it must traverse the entire path up to '/' looking for symlinks.
Another solution would be to just delete the directory first using File.delete() and if it
is a symlink, it will work. (With the slight assumption, which could be checked, that the
parent directory was writable.)
> the task execution environment should have a current working directory that is task specific
> --------------------------------------------------------------------------------------------
>
> Key: HADOOP-673
> URL: http://issues.apache.org/jira/browse/HADOOP-673
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.7.2
> Reporter: Owen O'Malley
> Assigned To: Mahadev konar
> Attachments: cwd.patch
>
>
> The tasks should be run in a work directory that is specific to a single task. In particular,
I'd suggest using the <local>/jobcache/<jobid>/<taskid> as the current working
directory.
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