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https://issues.apache.org/jira/browse/YARN-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15081503#comment-15081503
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Bibin A Chundatt commented on YARN-4539:
----------------------------------------

Duplicate of YARN-3425 ?

> CommonNodeLabelsManager throw NullPointerException when the fairScheduler 
> init failed
> -------------------------------------------------------------------------------------
>
>                 Key: YARN-4539
>                 URL: https://issues.apache.org/jira/browse/YARN-4539
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.1
>            Reporter: tangshangwen
>            Assignee: tangshangwen
>         Attachments: YARN-4539.1.patch
>
>
> When the scheduler initialization failed and RM stop compositeService cause 
> the CommonNodeLabelsManager throw NullPointerException.
> {noformat}
> 2016-01-04 22:19:52,190 INFO org.apache.hadoop.service.AbstractService: 
> Service 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler 
> failed in state INITED; cause: java.io.IOException: Failed to initialize 
> FairScheduler
> java.io.IOException: Failed to initialize FairScheduler
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.initScheduler(FairScheduler.java:1377)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.serviceInit(FairScheduler.java:1394)
>       at 
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
>       at 
> org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
> ....
> 2016-01-04 22:19:52,193 INFO 
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping ResourceManager 
> metrics system...
> 2016-01-04 22:19:52,194 INFO 
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ResourceManager metrics 
> system stopped.
> 2016-01-04 22:19:52,194 INFO 
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ResourceManager metrics 
> system shutdown complete.
> 2016-01-04 22:19:52,194 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: 
> AsyncDispatcher is draining to stop, igonring any new events.
> 2016-01-04 22:19:52,194 INFO org.apache.hadoop.service.AbstractService: 
> Service org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager failed in 
> state STOPPED; cause: java.lang.NullPointerException
> java.lang.NullPointerException
> java.lang.NullPointerException
>       at 
> org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager.stopDispatcher(CommonNodeLabelsManager.java:251)
>       at 
> org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager.serviceStop(CommonNodeLabelsManager.java:257)
>       at 
> org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
>       at 
> org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:52)
>       at 
> org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:80)
> {noformat}



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