Hi, I have a test-running zeppelin connected to my spark cluster and cluster setup like this: Spark: spark-1.4.1-bin-hadoop2.6 Hadoop: hadoop-2.7.1 Zeppelin installed as: mvn clean install -Pspark-1.4 -Dhadoop.version=2.6.0 -Phadoop-2.6 -DskipTests and ran a test code like this: val textFile = sc.textFile("hdfs://analytics-master:9000/user/kanizsa.lab/gutenberg") print textFile.count() val textFile = sc.textFile("README.md") print textFile.count() this code works well with scala interpreter but I'd encountered error when executing similar code as %pyspark. I'd also ran a code in pyspark command line shell but I works like a charm. no error like below: How to resolve this error? It seems something inside of zeppelin not compatible with my spark cluster... Py4JJavaError: An error occurred while calling z:org.apache.spark.api.python.PythonRDD.collectAndServe. : org.apache.spark.SparkException: Job aborted due to stage failure: Task 1 in stage 5.0 failed 4 times, most recent failure: Lost task 1.3 in stage 5.0 (TID 52, 10.32.10.97): java.io.InvalidClassException: org.apache.spark.api.python.PythonRDD; local class incompatible: stream classdesc serialVersionUID = 1521627685947625661, local class serialVersionUID = -2629548733386970437 at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:621) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1623) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371) at org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:69) at org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:95) at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:58) at org.apache.spark.scheduler.Task.run(Task.scala:70) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
Driver stacktrace: at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1266) at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1257) at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1256) at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47) at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1256) at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:730) at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:730) at scala.Option.foreach(Option.scala:236) at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:730) at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1450) at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1411) at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48) (<class 'py4j.protocol.Py4JJavaError'>, Py4JJavaError(u'An error occurred while calling z:org.apache.spark.api.python.PythonRDD.collectAndServe.\n', JavaObject id=o93), <traceback object at 0x1bde290>)