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From "Chandni Singh (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-7371) NPE in ServiceMaster after RM is restarted and then the ServiceMaster is killed
Date Thu, 19 Oct 2017 22:14:00 GMT
Chandni Singh created YARN-7371:
-----------------------------------

             Summary: NPE in ServiceMaster after RM is restarted and then the ServiceMaster
is killed
                 Key: YARN-7371
                 URL: https://issues.apache.org/jira/browse/YARN-7371
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Chandni Singh


java.lang.NullPointerException
at org.apache.hadoop.yarn.service.ServiceScheduler.recoverComponents(ServiceScheduler.java:313)
at org.apache.hadoop.yarn.service.ServiceScheduler.serviceStart(ServiceScheduler.java:265)
at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
at org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:121)
at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
at org.apache.hadoop.yarn.service.ServiceMaster.main(ServiceMaster.java:150)

Steps:
1. Stopped RM and then started it
2. Application was still running
3. Killed the ServiceMaster to check if it recovers
4. Next attempt failed with the above exception



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