I have opened a PR for discussion on the apache/spark repository https://github.com/apache/spark/pull/620
There is certainly a classLoader problem in the way Mesos and Spark operate, I'm not sure what caused it to suddenly stop working so I'd like to open the discussion there -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/java-lang-ClassNotFoundException-spark-on-mesos-tp3510p5245.html Sent from the Apache Spark User List mailing list archive at Nabble.com.