Jason Lowe created MAPREDUCE-4741:
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Summary: WARN and ERROR messages logged during normal AM shutdown
Key: MAPREDUCE-4741
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4741
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: applicationmaster, mrv2
Affects Versions: 2.0.1-alpha, 0.23.3
Reporter: Jason Lowe
Priority: Minor
The ApplicationMaster is logging WARN and ERROR messages during normal
shutdown, and some users are misinterpreting these as serious problems. For
example:
{noformat}
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
{noformat}
Warnings or errors should not be logged if everything is working as intended.
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