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https://issues.apache.org/jira/browse/MAPREDUCE-7107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16957530#comment-16957530
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zhoukang commented on MAPREDUCE-7107:
-------------------------------------
Any progress of this issue? [~gherreros]
> NPE on MapReduce AM leaves the job in an inconsistent state
> -----------------------------------------------------------
>
> Key: MAPREDUCE-7107
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7107
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.7.3
> Reporter: Gonzalo Herreros
> Priority: Major
>
> 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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