Hi,Your error stack looks simmilar to the this issue in jira: 
https://issues.apache.org/jira/browse/MAPREDUCE-5703Maybe worth reading the 
link as it seemed to be resolved (but not as a patch, more as a development 
issue)
With Regards,Yves

Date: Sat, 6 Jun 2015 00:07:01 -0400
Subject: Hadoop YARN Map Reduce Job failing with a Null Pointer Exception.
From: simpleliving...@gmail.com
To: user@hadoop.apache.org

Can someone please let me know the root cause here.
15/06/05 21:21:31 INFO mapred.ClientServiceDelegate: Application state is 
completed. FinalApplicationStatus=SUCCEEDED. Redirecting to job history 
server15/06/05 21:21:40 INFO mapred.ClientServiceDelegate: Application state is 
completed. FinalApplicationStatus=SUCCEEDED. Redirecting to job history 
server15/06/05 21:21:41 INFO mapred.ClientServiceDelegate: Application state is 
completed. FinalApplicationStatus=SUCCEEDED. Redirecting to job history 
server15/06/05 21:21:41 WARN security.UserGroupInformation: 
PriviledgedActionException as:df (auth:SIMPLE) cause:java.io.IOException: 
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException): 
java.lang.NullPointerException   at 
org.apache.hadoop.mapreduce.v2.hs.HistoryClientService$HSClientProtocolHandler.getTaskAttemptCompletionEvents(HistoryClientService.java:272)
 at 
org.apache.hadoop.mapreduce.v2.api.impl.pb.service.MRClientProtocolPBServiceImpl.getTaskAttemptCompletionEvents(MRClientProtocolPBServiceImpl.java:173)
      at 
org.apache.hadoop.yarn.proto.MRClientProtocol$MRClientProtocolService$2.callBlockingMethod(MRClientProtocol.java:283)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
   at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)  at 
org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962) at 
org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958) at 
java.security.AccessController.doPrivileged(Native Method)   at 
javax.security.auth.Subject.doAs(Subject.java:415)   at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
 at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)
Exception in thread "main" java.io.IOException: 
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException): 
java.lang.NullPointerException   at 
org.apache.hadoop.mapreduce.v2.hs.HistoryClientService$HSClientProtocolHandler.getTaskAttemptCompletionEvents(HistoryClientService.java:272)
 at 
org.apache.hadoop.mapreduce.v2.api.impl.pb.service.MRClientProtocolPBServiceImpl.getTaskAttemptCompletionEvents(MRClientProtocolPBServiceImpl.java:173)
      at 
org.apache.hadoop.yarn.proto.MRClientProtocol$MRClientProtocolService$2.callBlockingMethod(MRClientProtocol.java:283)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
   at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)  at 
org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962) at 
org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958) at 
java.security.AccessController.doPrivileged(Native Method)   at 
javax.security.auth.Subject.doAs(Subject.java:415)   at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
 at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)
        at 
org.apache.hadoop.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:334)
        at 
org.apache.hadoop.mapred.ClientServiceDelegate.getTaskCompletionEvents(ClientServiceDelegate.java:386)
       at 
org.apache.hadoop.mapred.YARNRunner.getTaskCompletionEvents(YARNRunner.java:531)
     at org.apache.hadoop.mapreduce.Job$5.run(Job.java:668)  at 
org.apache.hadoop.mapreduce.Job$5.run(Job.java:665)  at 
java.security.AccessController.doPrivileged(Native Method)   at 
javax.security.auth.Subject.doAs(Subject.java:415)   at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
 at org.apache.hadoop.mapreduce.Job.getTaskCompletionEvents(Job.java:665)       
 at org.apache.hadoop.mapreduce.Job.monitorAndPrintJob(Job.java:1366)    at 
org.apache.hadoop.mapred.JobClient$NetworkedJob.monitorAndPrintJob(JobClient.java:407)
       at 
org.apache.hadoop.mapred.JobClient.monitorAndPrintJob(JobClient.java:855)    at 
org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:835)        at 
org.apache.nutch.fetcher.Fetcher.fetch(Fetcher.java:1351)    at 
org.apache.nutch.crawl.Crawl.run(Crawl.java:161)     at 
org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)    at 
org.apache.nutch.crawl.Crawl.main(Crawl.java:55)     at 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)   
     at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)     at 
org.apache.hadoop.util.RunJar.main(RunJar.java:212)Caused by: 
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException): 
java.lang.NullPointerException  at 
org.apache.hadoop.mapreduce.v2.hs.HistoryClientService$HSClientProtocolHandler.getTaskAttemptCompletionEvents(HistoryClientService.java:272)
 at 
org.apache.hadoop.mapreduce.v2.api.impl.pb.service.MRClientProtocolPBServiceImpl.getTaskAttemptCompletionEvents(MRClientProtocolPBServiceImpl.java:173)
      at 
org.apache.hadoop.yarn.proto.MRClientProtocol$MRClientProtocolService$2.callBlockingMethod(MRClientProtocol.java:283)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
   at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)  at 
org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1962) at 
org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1958) at 
java.security.AccessController.doPrivileged(Native Method)   at 
javax.security.auth.Subject.doAs(Subject.java:415)   at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
 at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1956)
        at org.apache.hadoop.ipc.Client.call(Client.java:1406)  at 
org.apache.hadoop.ipc.Client.call(Client.java:1359)  at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
   at com.sun.proxy.$Proxy10.getTaskAttemptCompletionEvents(Unknown Source)     
   at 
org.apache.hadoop.mapreduce.v2.api.impl.pb.client.MRClientProtocolPBClientImpl.getTaskAttemptCompletionEvents(MRClientProtocolPBClientImpl.java:177)
 at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)  at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)     at 
org.apache.hadoop.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:320)
                                          

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