[MAPREDUCE-6492] AsyncDispatcher exit with NPE on TaskAttemptImpl#sendJHStartEventForAssignedFailTask

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 2.8.0, 2.7.2, 2.6.4, 3.0.0-alpha1
• Target Version/s: 2.6.4
• Hadoop Flags: Reviewed
• Assignee: Bibin Chundatt
• Reporter: Bibin Chundatt
• Created: 28/Sep/15 10:16
• Updated: 06/Jan/17 00:54
• Resolved: 28/Sep/15 22:14

Description

For TaskAttemptImpl#DeallocateContainerTransition sendJHStartEventForAssignedFailTask is send for TaskAttemptStateInternal.UNASSIGNED also .

Causing NPE on taskAttempt.container.getNodeHttpAddress()

2015-09-28 18:01:48,656 FATAL [AsyncDispatcher event handler] org.apache.hadoop.yarn.event.AsyncDispatcher: Error in dispatcher thread
java.lang.NullPointerException
	at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl.sendJHStartEventForAssignedFailTask(TaskAttemptImpl.java:1494)
	at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl.access$2900(TaskAttemptImpl.java:147)
	at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl$DeallocateContainerTransition.transition(TaskAttemptImpl.java:1700)
	at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl$DeallocateContainerTransition.transition(TaskAttemptImpl.java:1686)
	at org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:362)
	at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
	at org.apache.hadoop.yarn.state.StateMachineFactory.access$3(StateMachineFactory.java:290)
	at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
	at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl.handle(TaskAttemptImpl.java:1190)
	at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl.handle(TaskAttemptImpl.java:146)
	at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$TaskAttemptEventDispatcher.handle(MRAppMaster.java:1415)
	at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$TaskAttemptEventDispatcher.handle(MRAppMaster.java:1407)
	at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:183)
	at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:109)
	at java.lang.Thread.run(Thread.java:745)
2015-09-28 18:01:48,660 INFO [AsyncDispatcher ShutDown handler] org.apache.hadoop.yarn.event.AsyncDispatcher: Exiting, bbye..
2015-09-28 18:01:48,660 INFO [ContainerLauncher #6] org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl: Processing the event EventType: CONTAINER_REMOTE_CLEANUP for container container_e04_1443430524957_0006_01_000059 taskAttempt attempt_1443430524957_0006_m_000000_9

Log aggregation fail for mapreduce application.

Issue Links

• is broken by: MAPREDUCE-5982 Task attempts that fail from the ASSIGNED state can disappear