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From "Arun C Murthy (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3537) DefaultContainerExecutor has a race condn. with multiple concurrent containers
Date Tue, 13 Dec 2011 01:29:30 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-3537:
-------------------------------------

    Attachment: MAPREDUCE-3537.patch

Quick fix to add synchronization to unblock Pig, Oozie etc. 

We should redo the DCE more throughly.
                
> DefaultContainerExecutor has a race condn. with multiple concurrent containers
> ------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3537
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3537
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.23.0
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>            Priority: Blocker
>         Attachments: MAPREDUCE-3537.patch
>
>
> DCE relies cwd before calling ContainerLocalizer.runLocalization. However, with multiple
containers setting cwd on same localFS reference leads to race. 

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