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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAPREDUCE-4369) Fix streaming job failures with WindowsResourceCalculatorPlugin
Date Thu, 05 Jul 2012 07:07:34 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Arun C Murthy resolved MAPREDUCE-4369.

       Resolution: Fixed
    Fix Version/s: 1-win

I just committed this. Thanks Bikas!
> Fix streaming job failures with WindowsResourceCalculatorPlugin
> ---------------------------------------------------------------
>                 Key: MAPREDUCE-4369
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4369
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>             Fix For: 1-win
>         Attachments: MAPREDUCE-4369.branch-1-win.1.patch, MAPREDUCE-4369.branch-1-win.2.patch
> Some streaming jobs use local mode job runs that do not start tasks trackers. In these
cases, the jvm context is not setup and hence local mode execution causes the code to crash.
> Fix is to not not use ResourceCalculatorPlugin in such cases or make the local job run
creating dummy jvm contexts. Choosing the first option because thats the current implicit
behavior in Linux. The ProcfsBasedProcessTree (used inside the LinuxResourceCalculatorPlugin)
does no real work when the process pid is not setup correctly. This is what happens when local
job mode runs.

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