2015-03-23 11:36:18,305 INFO [main] org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties
2015-03-23 11:36:18,865 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s).
2015-03-23 11:36:18,865 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system started
2015-03-23 11:36:18,954 INFO [main] org.apache.hadoop.mapred.YarnChild: Executing with tokens:
