[ 
https://issues.apache.org/jira/browse/YARN-5661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

fengyongshe resolved YARN-5661.
-------------------------------
    Resolution: Duplicate

> transitionToActive blocks when enable work-preserving-recovery
> --------------------------------------------------------------
>
>                 Key: YARN-5661
>                 URL: https://issues.apache.org/jira/browse/YARN-5661
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: fengyongshe
>
> Consider scenario : Restart YARN with some application running or accepted, 
> when enable work-preserving-recovery, RM is failed to transition to Active 
> because of NullPointerException
> 16-09-21 14:32:10,536 INFO  fair.AllocationFileLoaderService 
> (AllocationFileLoaderService.java:reloadAllocations(209)) - Loading 
> allocation file /cmss/bch/bc1.3.1/hadoop/etc/hadoop/fair-scheduler.xml.
> 2016-09-21 14:32:10,543 WARN  resourcemanager.RMAuditLogger 
> (RMAuditLogger.java:logFailure(287)) - USER=yarn    
> OPERATION=transitionToActive    TARGET=RMHAProtocolService      
> RESULT=FAILURE  DESCRIPTION=Exception transitioning to active   PERMISSIONS=
> 2016-09-21 14:32:10,543 WARN  ha.ActiveStandbyElector 
> (ActiveStandbyElector.java:becomeActive(808)) - Exception handling the 
> winning of election
> org.apache.hadoop.ha.ServiceFailedException: RM could not transition to Active
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.becomeActive(EmbeddedElectorService.java:124)
>         at 
> org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(ActiveStandbyElector.java:804)
>         at 
> org.apache.hadoop.ha.ActiveStandbyElector.processResult(ActiveStandbyElector.java:415)
>         at 
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:599)
> 2016-09-21 14:32:10,534 INFO  util.HostsFileReader 
> (HostsFileReader.java:refresh(129)) - Refreshing hosts (include/exclude) list
> 2016-09-21 14:32:10,537 INFO  fair.QueueManager 
> (QueueManager.java:updateAllocationConfiguration(385)) - **** there is queue 
> root.default in fair scheduer used for test
> 2016-09-21 14:32:10,537 INFO  fair.QueueManager 
> (QueueManager.java:updateAllocationConfiguration(385)) - **** there is queue 
> root in fair scheduer used for test
> 2016-09-21 14:32:10,543 WARN  ha.ActiveStandbyElector 
> (ActiveStandbyElector.java:becomeActive(808)) - Exception handling the 
> winning of election
> org.apache.hadoop.ha.ServiceFailedException: RM could not transition to Active
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.becomeActive(EmbeddedElectorService.java:124)
>         at 
> org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(ActiveStandbyElector.java:804)
>         at 
> org.apache.hadoop.ha.ActiveStandbyElector.processResult(ActiveStandbyElector.java:415)
>         at 
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:599)
>         at 
> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
> Caused by: org.apache.hadoop.ha.ServiceFailedException: Error when 
> transitioning to Active mode
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.AdminService.transitionToActive(AdminService.java:307)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.becomeActive(EmbeddedElectorService.java:122)
>         ... 4 more
> Caused by: java.lang.NullPointerException
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.addApplicationAttempt(FairScheduler.java:748)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$AttemptRecoveredTransition.transition(RMAppAttemptImpl.java:1045)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$AttemptRecoveredTransition.transition(RMAppAttemptImpl.java:1009)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.handle(RMAppAttemptImpl.java:760)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.access$1900(RMAppImpl.java:105)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl$RMAppRecoveredTransition.transition(RMAppImpl.java:877)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl$RMAppRecoveredTransition.transition(RMAppImpl.java:867)
>         at 
> org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
>         at 
> org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.handle(RMAppImpl.java:742)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recoverApplication(RMAppManager.java:313)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recover(RMAppManager.java:419)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.recover(ResourceManager.java:1201)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStart(ResourceManager.java:583)
>         at 
> org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startActiveServices(ResourceManager.java:1008)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$1.run(ResourceManager.java:1049)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$1.run(ResourceManager.java:1045)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:415)
>         at 
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1846)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.transitionToActive(ResourceManager.java:1045)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.AdminService.transitionToActive(AdminService.java:302)
>         ... 5 more
> 2016-09-21 14:32:10,543 INFO  ha.ActiveStandbyElector 
> (ActiveStandbyElector.java:reJoinElection(669)) - Trying to re-establish ZK 
> session.



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