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  1. Hadoop Map/Reduce
  2. MAPREDUCE-4741

WARN and ERROR messages logged during normal AM shutdown

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    Description

      The ApplicationMaster is logging WARN and ERROR messages during normal shutdown, and some users are misinterpreting these as serious problems. For example:

      2012-10-02 13:58:50,247 ERROR [ContainerLauncher Event Handler] org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl: Returning, interrupted : java.lang.InterruptedException
      [...]
      2012-10-02 13:58:50,248 ERROR [Thread-47] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Returning, interrupted : java.lang.InterruptedException
      2012-10-02 13:58:50,248 WARN [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: Allocated thread interrupted. Returning.
      [...]
      2012-10-02 13:58:50,367 ERROR [TaskCleaner Event Handler] org.apache.hadoop.mapreduce.v2.app.taskclean.TaskCleanerImpl: Returning, interrupted : java.lang.InterruptedException
      

      Warnings or errors should not be logged if everything is working as intended.

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        1. MAPREDUCE-4741-20121023.txt
          8 kB
          Vinod Kumar Vavilapalli

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            vinodkv Vinod Kumar Vavilapalli
            jlowe Jason Darrell Lowe
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