I've received the same error with Spark built using Maven. It turns out that mesos-0.13.0 depends on protobuf-2.4.1 which is causing the clash at runtime. Protobuf included by Akka is shaded and doesn't cause any problems.
The solution is to update the mesos dependency to 0.18.0 in spark's pom.xml. Rebuilding the JAR with this configuration solves the issue. -Anant -- 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-tp2158p4286.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
