>From the looks of your exception, you modified your local class, but you forgot to deploy those local changes to the cluster. This error msg: classdesc serialVersionUID = 5151096093324583655, local class serialVersionUID = 9012954318378784201
indicates that a version being de-serialized is different from the local version. Make sure you deploy your changes across your Spark cluster. -kr, Gerard. On Wed, Nov 27, 2013 at 4:22 PM, Zuhair Khayyat <zuhair.khay...@gmail.com>wrote: > Dear SPARK members, > > I am trying to start developing on SPARK source code. I have added a new > dummy function in RDD.scala to test if it compiles and runs. The modified > Spark compiled correctly but when I execute my code I got the following > error: > > java.io.InvalidClassException: spark.RDD; local class incompatible: stream > classdesc serialVersionUID = 5151096093324583655, local class > serialVersionUID = 9012954318378784201 > at > java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:617) > at > java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1620) > at > java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1515) > at > java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1620) > at > java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1515) > at > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1769) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) > at > spark.JavaDeserializationStream.readObject(JavaSerializer.scala:23) > at > spark.scheduler.ShuffleMapTask$.deserializeInfo(ShuffleMapTask.scala:54) > at > spark.scheduler.ShuffleMapTask.readExternal(ShuffleMapTask.scala:111) > at > java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1835) > at > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1794) > at > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) > at > spark.JavaDeserializationStream.readObject(JavaSerializer.scala:23) > at > spark.JavaSerializerInstance.deserialize(JavaSerializer.scala:45) > at spark.executor.Executor$TaskRunner.run(Executor.scala:96) > at > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:724) > 13/11/27 17:47:43 ERROR executor.StandaloneExecutorBackend: Driver or > worker disconnected! Shutting down. > > Can you please help me to find out what went wrong? Thank you > > Zuhair Khayyat >
