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https://issues.apache.org/jira/browse/HIVE-12577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15053918#comment-15053918
]
Sergey Shelukhin commented on HIVE-12577:
-----------------------------------------
Can you add some comments? I don't quite understand what the patch is actually
doing.
> NPE in LlapTaskCommunicator when unregistering containers
> ---------------------------------------------------------
>
> Key: HIVE-12577
> URL: https://issues.apache.org/jira/browse/HIVE-12577
> Project: Hive
> Issue Type: Bug
> Components: llap
> Affects Versions: 2.0.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Priority: Critical
> Attachments: HIVE-12577.1.review.txt, HIVE-12577.1.txt,
> HIVE-12577.1.wip.txt
>
>
> {code}
> 2015-12-02 13:29:00,160 [ERROR] [Dispatcher thread {Central}]
> |common.AsyncDispatcher|: Error in dispatcher thread
> java.lang.NullPointerException
> at
> org.apache.hadoop.hive.llap.tezplugins.LlapTaskCommunicator$EntityTracker.unregisterContainer(LlapTaskCommunicator.java:586)
> at
> org.apache.hadoop.hive.llap.tezplugins.LlapTaskCommunicator.registerContainerEnd(LlapTaskCommunicator.java:188)
> at
> org.apache.tez.dag.app.TaskCommunicatorManager.unregisterRunningContainer(TaskCommunicatorManager.java:389)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl.unregisterFromTAListener(AMContainerImpl.java:1121)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl$StopRequestAtLaunchingTransition.transition(AMContainerImpl.java:699)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl$StopRequestAtIdleTransition.transition(AMContainerImpl.java:805)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl$StopRequestAtRunningTransition.transition(AMContainerImpl.java:892)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl$StopRequestAtRunningTransition.transition(AMContainerImpl.java:887)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$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.tez.dag.app.rm.container.AMContainerImpl.handle(AMContainerImpl.java:415)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl.handle(AMContainerImpl.java:72)
> at
> org.apache.tez.dag.app.rm.container.AMContainerMap.handle(AMContainerMap.java:60)
> at
> org.apache.tez.dag.app.rm.container.AMContainerMap.handle(AMContainerMap.java:36)
> at
> org.apache.tez.common.AsyncDispatcher.dispatch(AsyncDispatcher.java:183)
> at
> org.apache.tez.common.AsyncDispatcher$1.run(AsyncDispatcher.java:114)
> at java.lang.Thread.run(Thread.java:745)
> 2015-12-02 13:29:00,167 [ERROR] [Dispatcher thread {Central}]
> |common.AsyncDispatcher|: Error in dispatcher thread
> java.lang.NullPointerException
> at
> org.apache.tez.dag.app.TaskCommunicatorManager.unregisterRunningContainer(TaskCommunicatorManager.java:386)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl.unregisterFromTAListener(AMContainerImpl.java:1121)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl$StopRequestAtLaunchingTransition.transition(AMContainerImpl.java:699)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl$StopRequestAtIdleTransition.transition(AMContainerImpl.java:805)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl$StopRequestAtRunningTransition.transition(AMContainerImpl.java:892)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl$StopRequestAtRunningTransition.transition(AMContainerImpl.java:887)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$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.tez.dag.app.rm.container.AMContainerImpl.handle(AMContainerImpl.java:415)
> at
> org.apache.tez.dag.app.rm.container.AMContainerImpl.handle(AMContainerImpl.java:72)
> at
> org.apache.tez.dag.app.rm.container.AMContainerMap.handle(AMContainerMap.java:60)
> at
> org.apache.tez.dag.app.rm.container.AMContainerMap.handle(AMContainerMap.java:36)
> at
> org.apache.tez.common.AsyncDispatcher.dispatch(AsyncDispatcher.java:183)
> at
> org.apache.tez.common.AsyncDispatcher$1.run(AsyncDispatcher.java:114)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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