Y. SREENIVASULU REDDY created YARN-8727:
-------------------------------------------

             Summary: NPE in RouterRMAdminService while stopping service.
                 Key: YARN-8727
                 URL: https://issues.apache.org/jira/browse/YARN-8727
             Project: Hadoop YARN
          Issue Type: Bug
          Components: federation, router
    Affects Versions: 3.1.1
            Reporter: Y. SREENIVASULU REDDY
            Assignee: Y. SREENIVASULU REDDY


while stopping the service router throw NPE
{noformat}
2018-08-23 22:52:00,596 INFO org.apache.hadoop.service.AbstractService: Service 
org.apache.hadoop.yarn.server.router.rmadmin.RouterRMAdminService failed in 
state STOPPED
java.lang.NullPointerException
        at 
org.apache.hadoop.yarn.server.router.rmadmin.RouterRMAdminService.serviceStop(RouterRMAdminService.java:143)
        at 
org.apache.hadoop.service.AbstractService.stop(AbstractService.java:220)
        at 
org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:54)
        at 
org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:102)
        at 
org.apache.hadoop.service.CompositeService.stop(CompositeService.java:158)
        at 
org.apache.hadoop.service.CompositeService.serviceStop(CompositeService.java:132)
        at 
org.apache.hadoop.yarn.server.router.Router.serviceStop(Router.java:128)
        at 
org.apache.hadoop.service.AbstractService.stop(AbstractService.java:220)
        at 
org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:54)
        at 
org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:102)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:202)
        at org.apache.hadoop.yarn.server.router.Router.main(Router.java:182)
{noformat}



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