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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4949) Enable multiple pi jobs to run in parallel
Date Sat, 19 Jan 2013 00:38:12 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13557803#comment-13557803
] 

Alejandro Abdelnur commented on MAPREDUCE-4949:
-----------------------------------------------

+3.141592
                
> Enable multiple pi jobs to run in parallel
> ------------------------------------------
>
>                 Key: MAPREDUCE-4949
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4949
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: examples
>    Affects Versions: 2.0.2-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>            Priority: Minor
>         Attachments: MAPREDUCE-4949.patch
>
>
> Currently the hadoop pi example uses a hardcoded temporary directory to store its inputs
and outputs.  This makes it so that only one pi job can run at a time, and that if it is cancelled,
the temporary directory must be manually deleted.
> I propose using a temporary directory based on a timestamp and random number to avoid
these conflicts

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