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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6457) kill task before the task is truely runing on a slave node
Date Wed, 19 Aug 2015 17:38:46 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14703430#comment-14703430
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Karthik Kambatla commented on MAPREDUCE-6457:
---------------------------------------------

Could you share more details on the kinds of errors you saw. If were working on MR internals,
may be a test case to demonstrate the issue?

> kill task before the task is truely runing on a slave node
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-6457
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6457
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster, mrv2
>    Affects Versions: 2.6.0, 2.7.1
>         Environment: regular environment
>            Reporter: Wei Chen
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> I happned to find this bug. When I am doing some development based on Hadoop-2.6.0. 
I happend to send to T_KILL signal to one of maptask before this task is register to TaskAttemptListener.
Because the attempt is not assigned with a container yet. It may lead to a lot of errors.



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