Gino, I can confirm that your solution of assembling with spark-streaming-kafka but excluding spark-core and spark-streaming has me working with basic spark-submit. As mentioned you must specify the assembly jar in the SparkConfig as well as to spark-submit.
When I see the error you are now experiencing I just restart my cluster (sbin/stop-all.sh; sleep 6; sbin/start-all.sh). My thought is a resource leak somewhere but I haven't tried to chase it down since restarting is nice and quick. -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/spark-streaming-kafka-SPARK-CLASSPATH-tp7356p7941.html Sent from the Apache Spark User List mailing list archive at Nabble.com.