Hi,   The stack trace reported here is identical to MAPREDUCE-5799.   Its a classpath issue that can be resolved by adding the following property to your client configurations:   <property> <name>yarn.app.mapreduce.am.env</name> <value>LD_LIBRARY_PATH=/opt/cloudera/parcels/CDH/lib/hadoop/lib/native</value> </property>   ... View more