2015-03-23 10:38:19,728 INFO [main] org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties
2015-03-23 10:38:20,501 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s).
2015-03-23 10:38:20,502 INFO [main] org.apache.hadoop.metrics2.impl.MetricsSystemImpl: MapTask metrics system started
2015-03-23 10:38:20,603 INFO [main] org.apache.hadoop.mapred.YarnChild: Executing with tokens:
2015-03-23 10:38:20,603 INFO [main] org.apache.hadoop.mapred.YarnChild: Kind: mapreduce.job, Service: job_1427088391284_0076, Ident: (org.apache.hadoop.mapreduce.security.token.JobTokenIdentifier@5497fb72)
2015-03-23 10:38:21,430 INFO [main] org.apache.hadoop.mapred.YarnChild: Sleeping for 0ms before retrying again. Got null now.
2015-03-23 10:38:24,383 INFO [main] org.apache.hadoop.mapred.YarnChild: mapreduce.cluster.local.dir for child: /tmp/hadoop-ubuntu/nm-local-dir/usercache/ubuntu/appcache/application_1427088391284_0076
