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From "Hitesh Shah (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-438) NM on startup should handle cleaning up of any running containers managed by the previous instance
Date Fri, 01 Mar 2013 19:49:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13590885#comment-13590885
] 

Hitesh Shah commented on YARN-438:
----------------------------------

@Sandy, yes thanks - closing this out.
                
> NM on startup should handle cleaning up of any running containers managed by the previous
instance
> --------------------------------------------------------------------------------------------------
>
>                 Key: YARN-438
>                 URL: https://issues.apache.org/jira/browse/YARN-438
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Hitesh Shah
>            Priority: Critical
>
> If the NM is shutdown in a non-clean manner, the containers launched by it will remain
running. When a NM is brought up, there needs to be some handling to ensure that the node
is clean before new containers can be launched on it. 
> Special care should be taken to handle cases where the PIDs wrap around - it may be non-trivial
to figure out if the process running currently actually maps to the previously launched container.

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