[jira] [Updated] (YARN-2308) NPE happened when RM restart after CapacityScheduler queue configuration changed

2014-10-13 Thread Craig Welch (JIRA)

 [ 
https://issues.apache.org/jira/browse/YARN-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Craig Welch updated YARN-2308:
--
Attachment: YARN-2308.1.patch

Add explicit logging before exception throw, just in case the exception message 
is somehow swallowed.

> NPE happened when RM restart after CapacityScheduler queue configuration 
> changed 
> -
>
> Key: YARN-2308
> URL: https://issues.apache.org/jira/browse/YARN-2308
> Project: Hadoop YARN
>  Issue Type: Bug
>  Components: resourcemanager, scheduler
>Affects Versions: 2.6.0
>Reporter: Wangda Tan
>Assignee: chang li
>Priority: Critical
> Attachments: YARN-2308.0.patch, YARN-2308.1.patch, jira2308.patch, 
> jira2308.patch, jira2308.patch
>
>
> I encountered a NPE when RM restart
> {code}
> 2014-07-16 07:22:46,957 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
> handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:566)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:922)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:594)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:654)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:85)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:698)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:682)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:744)
> {code}
> And RM will be failed to restart.
> This is caused by queue configuration changed, I removed some queues and 
> added new queues. So when RM restarts, it tries to recover history 
> applications, and when any of queues of these applications removed, NPE will 
> be raised.



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[jira] [Updated] (YARN-2308) NPE happened when RM restart after CapacityScheduler queue configuration changed

2014-10-10 Thread Craig Welch (JIRA)

 [ 
https://issues.apache.org/jira/browse/YARN-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Craig Welch updated YARN-2308:
--
Attachment: YARN-2308.0.patch

Here's a patch which does what I believe the consensus was - detects the 
condition and throws a descriptive exception which will not be caught / will 
result in rm exit

> NPE happened when RM restart after CapacityScheduler queue configuration 
> changed 
> -
>
> Key: YARN-2308
> URL: https://issues.apache.org/jira/browse/YARN-2308
> Project: Hadoop YARN
>  Issue Type: Bug
>  Components: resourcemanager, scheduler
>Affects Versions: 2.6.0
>Reporter: Wangda Tan
>Assignee: chang li
>Priority: Critical
> Attachments: YARN-2308.0.patch, jira2308.patch, jira2308.patch, 
> jira2308.patch
>
>
> I encountered a NPE when RM restart
> {code}
> 2014-07-16 07:22:46,957 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
> handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:566)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:922)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:594)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:654)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:85)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:698)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:682)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:744)
> {code}
> And RM will be failed to restart.
> This is caused by queue configuration changed, I removed some queues and 
> added new queues. So when RM restarts, it tries to recover history 
> applications, and when any of queues of these applications removed, NPE will 
> be raised.



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[jira] [Updated] (YARN-2308) NPE happened when RM restart after CapacityScheduler queue configuration changed

2014-08-11 Thread chang li (JIRA)

 [ 
https://issues.apache.org/jira/browse/YARN-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

chang li updated YARN-2308:
---

Attachment: jira2308.patch

> NPE happened when RM restart after CapacityScheduler queue configuration 
> changed 
> -
>
> Key: YARN-2308
> URL: https://issues.apache.org/jira/browse/YARN-2308
> Project: Hadoop YARN
>  Issue Type: Bug
>  Components: resourcemanager, scheduler
>Affects Versions: 2.6.0
>Reporter: Wangda Tan
>Assignee: chang li
>Priority: Critical
> Attachments: jira2308.patch, jira2308.patch, jira2308.patch
>
>
> I encountered a NPE when RM restart
> {code}
> 2014-07-16 07:22:46,957 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
> handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:566)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:922)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:594)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:654)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:85)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:698)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:682)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:744)
> {code}
> And RM will be failed to restart.
> This is caused by queue configuration changed, I removed some queues and 
> added new queues. So when RM restarts, it tries to recover history 
> applications, and when any of queues of these applications removed, NPE will 
> be raised.



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[jira] [Updated] (YARN-2308) NPE happened when RM restart after CapacityScheduler queue configuration changed

2014-08-11 Thread chang li (JIRA)

 [ 
https://issues.apache.org/jira/browse/YARN-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

chang li updated YARN-2308:
---

Attachment: jira2308.patch

patch updated according to Wangda's suggestion

> NPE happened when RM restart after CapacityScheduler queue configuration 
> changed 
> -
>
> Key: YARN-2308
> URL: https://issues.apache.org/jira/browse/YARN-2308
> Project: Hadoop YARN
>  Issue Type: Bug
>  Components: resourcemanager, scheduler
>Affects Versions: 2.6.0
>Reporter: Wangda Tan
>Assignee: chang li
>Priority: Critical
> Attachments: jira2308.patch, jira2308.patch
>
>
> I encountered a NPE when RM restart
> {code}
> 2014-07-16 07:22:46,957 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
> handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:566)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:922)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:594)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:654)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:85)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:698)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:682)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:744)
> {code}
> And RM will be failed to restart.
> This is caused by queue configuration changed, I removed some queues and 
> added new queues. So when RM restarts, it tries to recover history 
> applications, and when any of queues of these applications removed, NPE will 
> be raised.



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[jira] [Updated] (YARN-2308) NPE happened when RM restart after CapacityScheduler queue configuration changed

2014-08-11 Thread chang li (JIRA)

 [ 
https://issues.apache.org/jira/browse/YARN-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

chang li updated YARN-2308:
---

Attachment: (was: jira2308.patch)

> NPE happened when RM restart after CapacityScheduler queue configuration 
> changed 
> -
>
> Key: YARN-2308
> URL: https://issues.apache.org/jira/browse/YARN-2308
> Project: Hadoop YARN
>  Issue Type: Bug
>  Components: resourcemanager, scheduler
>Affects Versions: 2.6.0
>Reporter: Wangda Tan
>Assignee: chang li
>Priority: Critical
> Attachments: jira2308.patch, jira2308.patch
>
>
> I encountered a NPE when RM restart
> {code}
> 2014-07-16 07:22:46,957 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
> handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:566)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:922)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:594)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:654)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:85)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:698)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:682)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:744)
> {code}
> And RM will be failed to restart.
> This is caused by queue configuration changed, I removed some queues and 
> added new queues. So when RM restarts, it tries to recover history 
> applications, and when any of queues of these applications removed, NPE will 
> be raised.



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[jira] [Updated] (YARN-2308) NPE happened when RM restart after CapacityScheduler queue configuration changed

2014-08-11 Thread chang li (JIRA)

 [ 
https://issues.apache.org/jira/browse/YARN-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

chang li updated YARN-2308:
---

Attachment: jira2308.patch

updated patch according to Wangda's advice

> NPE happened when RM restart after CapacityScheduler queue configuration 
> changed 
> -
>
> Key: YARN-2308
> URL: https://issues.apache.org/jira/browse/YARN-2308
> Project: Hadoop YARN
>  Issue Type: Bug
>  Components: resourcemanager, scheduler
>Affects Versions: 2.6.0
>Reporter: Wangda Tan
>Assignee: chang li
>Priority: Critical
> Attachments: jira2308.patch, jira2308.patch
>
>
> I encountered a NPE when RM restart
> {code}
> 2014-07-16 07:22:46,957 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
> handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:566)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:922)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:594)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:654)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:85)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:698)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:682)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:744)
> {code}
> And RM will be failed to restart.
> This is caused by queue configuration changed, I removed some queues and 
> added new queues. So when RM restarts, it tries to recover history 
> applications, and when any of queues of these applications removed, NPE will 
> be raised.



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[jira] [Updated] (YARN-2308) NPE happened when RM restart after CapacityScheduler queue configuration changed

2014-08-10 Thread chang li (JIRA)

 [ 
https://issues.apache.org/jira/browse/YARN-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

chang li updated YARN-2308:
---

Attachment: jira2308.patch

> NPE happened when RM restart after CapacityScheduler queue configuration 
> changed 
> -
>
> Key: YARN-2308
> URL: https://issues.apache.org/jira/browse/YARN-2308
> Project: Hadoop YARN
>  Issue Type: Bug
>  Components: resourcemanager, scheduler
>Affects Versions: 2.6.0
>Reporter: Wangda Tan
>Assignee: chang li
>Priority: Critical
> Attachments: jira2308.patch
>
>
> I encountered a NPE when RM restart
> {code}
> 2014-07-16 07:22:46,957 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
> handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:566)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:922)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:594)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:654)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:85)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:698)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:682)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:744)
> {code}
> And RM will be failed to restart.
> This is caused by queue configuration changed, I removed some queues and 
> added new queues. So when RM restarts, it tries to recover history 
> applications, and when any of queues of these applications removed, NPE will 
> be raised.



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[jira] [Updated] (YARN-2308) NPE happened when RM restart after CapacityScheduler queue configuration changed

2014-07-17 Thread Wangda Tan (JIRA)

 [ 
https://issues.apache.org/jira/browse/YARN-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wangda Tan updated YARN-2308:
-

Priority: Critical  (was: Major)

> NPE happened when RM restart after CapacityScheduler queue configuration 
> changed 
> -
>
> Key: YARN-2308
> URL: https://issues.apache.org/jira/browse/YARN-2308
> Project: Hadoop YARN
>  Issue Type: Bug
>  Components: resourcemanager, scheduler
>Affects Versions: 2.6.0
>Reporter: Wangda Tan
>Priority: Critical
>
> I encountered a NPE when RM restart
> {code}
> 2014-07-16 07:22:46,957 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
> handling event type APP_ATTEMPT_ADDED to the scheduler
> java.lang.NullPointerException
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:566)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:922)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:98)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:594)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:654)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:85)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:698)
> at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$ApplicationEventDispatcher.handle(ResourceManager.java:682)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
> at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
> at java.lang.Thread.run(Thread.java:744)
> {code}
> And RM will be failed to restart.
> This is caused by queue configuration changed, I removed some queues and 
> added new queues. So when RM restarts, it tries to recover history 
> applications, and when any of queues of these applications removed, NPE will 
> be raised.



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