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From "Arun C Murthy (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3809) Tasks may take upto 3 seconds to exit after completion
Date Mon, 06 Feb 2012 23:03:08 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201745#comment-13201745
] 

Arun C Murthy commented on MAPREDUCE-3809:
------------------------------------------

Looks fine, we could improve it further by ensuring there is no window between checking of
taskDone.get at the top of while loop and teh sleep, we could check taskDone again before
the wait, in the sync block to make sure.
                
> Tasks may take upto 3 seconds to exit after completion
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-3809
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3809
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2
>    Affects Versions: 0.23.1, 1.0.0
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>            Priority: Blocker
>         Attachments: MR3809.txt
>
>
> Task.TaskReporter.stopCommunicationThread can end up waiting for a thread.sleep(3000)
before stopping the thread.

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