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https://issues.apache.org/jira/browse/YARN-4347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15001277#comment-15001277
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Jian He commented on YARN-4347:
-------------------------------
Thanks [~yeshavora] for reporting this.
The issue here is that, attempt final state was previously not recorded but app
final state was previously recoded. So, when it recovers, NPE throws.
Working on a patch to fix the attempt recovery path -
If the corresponding app's recovered state is at final state, return the
attempt final state accordingly, instead of adding that into scheduler again.
> Resource manager fails with Null pointer exception
> --------------------------------------------------
>
> Key: YARN-4347
> URL: https://issues.apache.org/jira/browse/YARN-4347
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Yesha Vora
> Assignee: Jian He
>
> Resource manager fails with NPE while trying to load or recover a finished
> application.
> {code}
> 2015-11-11 17:53:22,351 ERROR resourcemanager.ResourceManager
> (ResourceManager.java:serviceStart(597)) - Failed to load/recover state
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.addApplicationAttempt(CapacityScheduler.java:746)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1155)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:116)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$AttemptRecoveredTransition.transition(RMAppAttemptImpl.java:1037)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$AttemptRecoveredTransition.transition(RMAppAttemptImpl.java:1001)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
> 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.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:755)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:106)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.recoverAppAttempts(RMAppImpl.java:839)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.access$1900(RMAppImpl.java:102)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl$RMAppRecoveredTransition.transition(RMAppImpl.java:854)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl$RMAppRecoveredTransition.transition(RMAppImpl.java:844)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
> 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.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:719)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recoverApplication(RMAppManager.java:313)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recover(RMAppManager.java:411)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.recover(ResourceManager.java:1219)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStart(ResourceManager.java:593)
> at
> org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startActiveServices(ResourceManager.java:1026)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$1.run(ResourceManager.java:1067)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$1.run(ResourceManager.java:1063)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> {code}
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