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Posted to mapreduce-dev@hadoop.apache.org by "Vinod Kumar Vavilapalli (Created) (JIRA)" <ji...@apache.org> on 2011/10/21 16:38:32 UTC

[jira] [Created] (MAPREDUCE-3240) NM should send a SIGKILL for completed containers also

NM should send a SIGKILL for completed containers also
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                 Key: MAPREDUCE-3240
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3240
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2, nodemanager
    Affects Versions: 0.23.0
            Reporter: Vinod Kumar Vavilapalli


This is to address the containers which exit properly after spawning sub-processes themselves. We don't want to leave these sub-process-tree or else they can pillage the NM's resources.

Today, we already have code to send SIGKILL to the whole process-trees (because of single sessionId resulting from  setsid) when the container is alive. We need to obtain the PID of the containers when they start and use that PID to send signal for completed containers' case also.

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