https://community.cloudera.com/t5/Support-Questions/container-exception-Exit-code-127/m-p/173451#M135725 <PRE> am seeing few thread messages too.. INFO [Thread-55] org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor: 1 failures on node xyz_123.com 2016-12-28 08:28:34,579 INFO [Thread-77] org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Stopped JobHistoryEventHandler. super.stop() 2016-12-28 08:28:34,582 INFO [Thread-77] org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator: Setting job diagnostics to Task failed task_1481762217559_27152_m_000000 Job failed as tasks failed. failedMaps:1 failedReduces:0</PRE> Thu, 29 Dec 2016 14:15:03 GMT Sathish Jeganathan 2016-12-29T14:15:03Z