Hi Anthony, We have HADOOP_CLASSPATH setup in Ambari. Mainly you need tez client on Hive server and Tez libraries should be setup in HADOOP_CLASSPATH. This is what we have: ======================== export HADOOP_CLASSPATH=${HADOOP_CLASSPATH}${JAVA_JDBC_LIBS}:${MAPREDUCE_LIBS} if [ -d "/usr/lib/tez" ]; then export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:/usr/lib/tez/*:/usr/lib/tez/lib/*:/etc/tez/conf fi ======================== Please let me know if this helps you. ... View more