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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-52) mapred input and output dirs must be absolute
Date Wed, 22 Mar 2006 22:19:58 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-52?page=all ]

Owen O'Malley updated HADOOP-52:

    Attachment: cwd2.patch

Ok, here is an updated patch that uses camelCase everywhere for variable names.

I also put in synchronization between the setWorkingDirectory and running the 
application code in the LocalJobRunner.

> mapred input and output dirs must be absolute
> ---------------------------------------------
>          Key: HADOOP-52
>          URL: http://issues.apache.org/jira/browse/HADOOP-52
>      Project: Hadoop
>         Type: Bug
>   Components: mapred
>     Versions: 0.1
>     Reporter: Doug Cutting
>     Assignee: Owen O'Malley
>      Fix For: 0.1
>  Attachments: cwd.patch, cwd2.patch
> DFS converts relative pathnames to be under /user/$USER.  But MapReduce jobs may be submitted
by a different user than is running the jobtracker and tasktracker.  Thus relative paths must
be resolved before a job is submitted, so that only absolute paths are seen on the job tracker
and tasktracker.  I think the simplest way to fix this is to make JobConf.setInputDir(), setOutputDir(),
etc. resolve relative pathnames. 

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