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Posted to mapreduce-dev@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2012/10/22 17:06:13 UTC
[jira] [Created] (MAPREDUCE-4741) WARN and ERROR messages logged
during normal AM shutdown
Jason Lowe created MAPREDUCE-4741:
-------------------------------------
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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