shubhamod opened a new pull request #2313:
URL: https://github.com/apache/hadoop/pull/2313


   ## NOTICE
   
   Please create an issue in ASF JIRA before opening a pull request,
   and you need to set the title of the pull request which starts with
   the corresponding JIRA issue number. (e.g. HADOOP-XXXXX. Fix a typo in YYY.)
   For more details, please see 
https://cwiki.apache.org/confluence/display/HADOOP/How+To+Contribute
   
   Link to JIRA: https://issues.apache.org/jira/browse/YARN-10438
   
   
   Error Message:
   java.lang.NullPointerException
       at 
org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getContainerReport(ClientRMService.java:473)
       at 
org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getContainerReport(ApplicationClientProtocolPBServiceImpl.java:453)
       at 
org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:591)
       at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:524)
       at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1025)
       at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:876)
       at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:822)
       at java.security.AccessController.doPrivileged(Native Method)
       at javax.security.auth.Subject.doAs(Subject.java:422)
       at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
       at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2682)
   
   
   


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