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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:
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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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