[jira] [Created] (MAPREDUCE-6457) kill task before the task is truely runing on a slave node

[Wei Chen (JIRA)]

Wei Chen created MAPREDUCE-6457:
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             Summary: 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: 2.7.1, 2.6.0
         Environment: regular environment
            Reporter: Wei Chen


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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