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Posted to mapreduce-issues@hadoop.apache.org by "Thomas Graves (JIRA)" <ji...@apache.org> on 2013/02/01 20:20:13 UTC

[jira] [Updated] (MAPREDUCE-4949) Enable multiple pi jobs to run in parallel

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Graves updated MAPREDUCE-4949:
-------------------------------------

    Fix Version/s: 0.23.7
    
> 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
>             Fix For: 2.0.3-alpha, 0.23.7
>
>         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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