The problem is in akka remote. It contains files compiled with 2.4.*. When you run it with 2.5.* in classpath it fails like above.
Looks like moving to akka 2.3 will solve this issue. Check this issue - https://www.assembla.com/spaces/akka/tickets/3154-use-protobuf-version-2-5-0#/activity/ticket: -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Error-reading-HDFS-file-using-spark-0-9-0-hadoop-2-2-0-incompatible-protobuf-2-5-and-2-4-1-tp2158p2217.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
