2015-03-23 07:50:10,898 INFO [main] org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties
2015-03-23 07:50:11,225 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s).
2015-03-23 07:50:11,225 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system started
2015-03-23 07:50:11,281 INFO [main] org.apache.hadoop.mapred.YarnChild: Executing with tokens:
2015-03-23 07:50:11,281 INFO [main] org.apache.hadoop.mapred.YarnChild: Kind: mapreduce.job, Service: job_1427088391284_0034, Ident: (org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier@19b81d10)
