2015-03-23 06:45:53,478 INFO [main] org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties
2015-03-23 06:45:54,671 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s).
2015-03-23 06:45:54,671 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system started
2015-03-23 06:45:54,770 INFO [main] org.apache.hadoop.mapred.YarnChild: Executing with tokens:
2015-03-23 06:45:54,770 INFO [main] org.apache.hadoop.mapred.YarnChild: Kind: mapreduce.job, Service: job_1427088391284_0016, Ident: (org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier@5497fb72)
