Dear Gerard, All servers share the spark binaries through NFS; It is unlikly that other servers contains the old class. I will test later with one server and see if I got the same problem..
Regards, Zuhair Khayyat On Nov 27, 2013, at 6:29 PM, Gerard Maas <gerard.m...@gmail.com> wrote: > 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 >>
