I have the same problem (Spark 0.9.1-> 1.0.0 and throws error) and I do call saveAsTextFile. Recompiled for 1.0.0.
org.apache.spark.SparkException: Job aborted due to stage failure: Task 0.0:10 failed 4 times, most recent failure: Exception failure in TID 1616 on host r3s1n03.bigdata.emea.nsn-net.net: java.lang.ClassNotFoundException: org.apache.spark.rdd.RDD$$anonfun$saveAsTextFile$1 java.net.URLClassLoader$1.run(URLClassLoader.java:366) java.net.URLClassLoader$1.run(URLClassLoader.java:355) java.security.AccessController.doPrivileged(Native Method) java.net.URLClassLoader.findClass(URLClassLoader.java:354) java.lang.ClassLoader.loadClass(ClassLoader.java:423) java.lang.ClassLoader.loadClass(ClassLoader.java:356) java.lang.Class.forName0(Native Method) java.lang.Class.forName(Class.java:264) org.apache.spark.serializer.JavaDeserializationStream$$anon$1.resolveClass(JavaSerializer.scala:60) java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1593) java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1514) java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750) java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347) java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1964) java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1888) java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771) java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347) java.io.ObjectInputStream.readObject(ObjectInputStream.java:369) org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:63) org.apache.spark.scheduler.ResultTask$.deserializeInfo(ResultTask.scala:61) org.apache.spark.scheduler.ResultTask.readExternal(ResultTask.scala:141) java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1810) java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1769) java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347) java.io.ObjectInputStream.readObject(ObjectInputStream.java:369) org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:63) org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:85) org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:169) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) java.lang.Thread.run(Thread.java:722) -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Strange-problem-with-saveAsTextFile-after-upgrade-Spark-0-9-0-1-0-0-tp6832p7121.html Sent from the Apache Spark User List mailing list archive at Nabble.com.