Exception in thread "main" java.lang.NullPointerException
at org.apache.hadoop.mapred.ClientServiceDelegate.refreshProxy(ClientServiceDelegate.java:113)
at org.apache.hadoop.mapred.ClientServiceDelegate.getProxy(ClientServiceDelegate.java:101)
at org.apache.hadoop.mapred.ClientServiceDelegate.getRefreshedProxy(ClientServiceDelegate.java:94)
at org.apache.hadoop.mapred.ClientServiceDelegate.getJobStatus(ClientServiceDelegate.java:384)
at org.apache.hadoop.mapred.YARNRunner.getJobStatus(YARNRunner.java:515)
at org.apache.hadoop.mapreduce.Cluster.getJob(Cluster.java:154)
at org.apache.hadoop.mapreduce.tools.CLI.run(CLI.java:223)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:83)
at org.apache.hadoop.mapred.JobClient.main(JobClient.java:1074)