Path configuration properties should not be comma separated
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                 Key: HADOOP-667
                 URL: http://issues.apache.org/jira/browse/HADOOP-667
             Project: Hadoop
          Issue Type: Bug
          Components: fs
    Affects Versions: 0.7.2
            Reporter: Nigel Daley
            Priority: Minor


A few configuration properties allow multiple directory paths separated by 
comma's (,).  Since comma is a valid character for a directory name, it should 
not be used as a path separator.

At a minimum, this applies to these properties:
     mapred.local.dir
     dfs.name.dir

[ I also wonder how robust the implementation is against paths that contain 
spaces. ]

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