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Posted to common-dev@hadoop.apache.org by "Gonzalo Herreros (JIRA)" <ji...@apache.org> on 2018/06/07 14:57:00 UTC

[jira] [Created] (HADOOP-15517) NPE on MapReduce AM leaves the job in an inconsistent state

Gonzalo Herreros created HADOOP-15517:
-----------------------------------------

             Summary: NPE on MapReduce AM leaves the job in an inconsistent state
                 Key: HADOOP-15517
                 URL: https://issues.apache.org/jira/browse/HADOOP-15517
             Project: Hadoop Common
          Issue Type: Bug
    Affects Versions: 2.7.3
            Reporter: Gonzalo Herreros


On AWS, running a MapReduce job, one of the nodes died and was decommissioned.

However, the AM doesn't seem to handle that well and the job didn't complete mappers correctly from there.


{code:java}
2018-06-07 14:29:08,686 ERROR [RMCommunicator Allocator] org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator: ERROR IN CONTACTING RM. 
java.lang.NullPointerException
	at org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.handleUpdatedNodes(RMContainerAllocator.java:879)
	at org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.getResources(RMContainerAllocator.java:779)
	at org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.heartbeat(RMContainerAllocator.java:259)
	at org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator$AllocatorRunnable.run(RMCommunicator.java:281)
	at java.lang.Thread.run(Thread.java:748)
2018-06-07 14:29:08,686 INFO [IPC Server handler 4 on 46577] org.apache.hadoop.mapred.TaskAttemptListenerImpl: MapCompletionEvents request from attempt_1528378746527_0011_r_000553_0. startIndex 13112 maxEvents 1453
2018-06-07 14:29:08,686 ERROR [AsyncDispatcher event handler] org.apache.hadoop.yarn.event.AsyncDispatcher: Error in dispatcher thread
java.lang.NullPointerException
	at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$UpdatedNodesTransition.transition(JobImpl.java:2162)
	at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$UpdatedNodesTransition.transition(JobImpl.java:2155)
	at org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:362)
	at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
	at org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
	at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
	at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.handle(JobImpl.java:997)
	at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.handle(JobImpl.java:139)
	at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobEventDispatcher.handle(MRAppMaster.java:1346)
	at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobEventDispatcher.handle(MRAppMaster.java:1342)
	at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:184)
	at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:110)
	at java.lang.Thread.run(Thread.java:748)
2018-06-07 14:29:08,688 INFO [AsyncDispatcher ShutDown handler] org.apache.hadoop.yarn.event.AsyncDispatcher: Exiting, bbye..
{code}



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