Naganarasimha G R created YARN-4452:
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             Summary: NPE when submit Unmanaged application
                 Key: YARN-4452
                 URL: https://issues.apache.org/jira/browse/YARN-4452
             Project: Hadoop YARN
          Issue Type: Bug
    Affects Versions: 2.7.1
            Reporter: Naganarasimha G R
            Assignee: Naganarasimha G R
            Priority: Critical


As reported in the forum by Wen Lin ([email protected])
{quote}
[gpadmin@master simple-yarn-app]$ hadoop jar
~/hadoop/singlecluster/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.6.0.3.0.0.0-120.jar
Client --classpath  ./target/simple-yarn-app-1.1.0.jar -cmd "java
com.hortonworks.simpleyarnapp.ApplicationMaster /bin/date 2"
{quote}
error is coming as 
{code}
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in 
handling event type REGISTERED for applicationAttempt
application_1450079798629_0001
664 java.lang.NullPointerException
665     at
org.apache.hadoop.yarn.server.resourcemanager.metrics.SystemMetricsPublisher.appAttemptRegistered(SystemMetricsPublisher.java:143)
666     at
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$AMRegisteredTransition.transition(RMAppAttemptImpl.java:1365)
667     at
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl$AMRegisteredTransition.transition(RMAppAttemptImpl.java:1341)
668     at
org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:362)
{code}



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