2015-03-23 11:07:25,271 INFO [main] org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties
2015-03-23 11:07:26,026 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s).
2015-03-23 11:07:26,026 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system started
2015-03-23 11:07:26,072 INFO [main] org.apache.hadoop.mapred.YarnChild: Executing with tokens:
2015-03-23 11:07:26,072 INFO [main] org.apache.hadoop.mapred.YarnChild: Kind: mapreduce.job, Service: job_1427088391284_0084, Ident: (org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier@a08feeb)
2015-03-23 11:07:27,100 INFO [main] org.apache.hadoop.mapred.YarnChild: Sleeping for 0ms before retrying again. Got null now.
