[MAPREDUCE-4741] WARN and ERROR messages logged during normal AM shutdown

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.23.3, 2.0.1-alpha
• Fix Version/s: 2.0.3-alpha, 0.23.5
• Component/s: applicationmaster, mrv2
• Hadoop Flags: Reviewed
• Assignee: Vinod Kumar Vavilapalli
• Reporter: Jason Darrell Lowe
• Created: 22/Oct/12 15:04
• Updated: 06/Feb/13 17:05
• Resolved: 24/Oct/12 15:51

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.

Issue Links

• is related to: MAPREDUCE-4794 DefaultSpeculator generates error messages on normal shutdown
• is related to: YARN-139 Interrupted Exception within AsyncDispatcher leads to user confusion