Debugging Hadoop 2.7.1 map reduce job - IsolationRunner?

[muniraju pulipalyam <mu...@yahoo.com.INVALID>]

 Hi All,
 
  I have a mapreduce streaming job which is failing with
 "subprocess failed with code 255"  at
 org.apache.hadoop.streaming.PipeMapRed.waitOutputThreads(PipeMapRed.java:322)
     at
 org.apache.hadoop.streaming.PipeMapRed.mapRedFinished(PipeMapRed.java:535)
     at
 org.apache.hadoop.streaming.PipeMapper.close(PipeMapper.java:130)
     at
 org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:61)
     at
 org.apache.hadoop.streaming.PipeMapRunner.run(PipeMapRunner.java:34)
     at
 org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
     at
 org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
     at
 org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
     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:1657)
     at
 org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
 
 I am running Hadoop 2.7.1 on a HortonWorks HDP for Windows
 cluster. I am able to run wordcount sample fine. So, to
 diagnose the error I wanted to find where the problem is and
 want to run IsolationRunner on job.xml of failed job. But
 when I try to run 
 hadoop org.apache.hadoop.mapred.IsolationRunner
 hdfs://HADOOP-MASTER:8020/user/hadoop/.staging/job_1449145495588_0004/job.xml
 I am getting the following error:
 Error: Could not find or load main class
 org.apache.hadoop.mapred.IsolationRunner
 
 I cannot find IsolationRunner in any Jar file on the entire
 machine. 
 
 Is IsolationRunner not available to 2.7.1? If not, what is
 the alternative?
 
 Thanks

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