Hi Andrea, What version of Spark are you using? There were some improvements in how Spark uses Kryo in 0.9.1 and to-be 1.0 that I would expect to improve this.
Also, can you share your registrator's code? Another possibility is that Kryo can have some difficulty serializing very large objects. Do you have a sense of how large the serialized items in your RDD are? Andrew On Sat, May 10, 2014 at 6:32 AM, Andrea Esposito <and1...@gmail.com> wrote: > UP, doesn't anyone know something about it? ^^ > > > 2014-05-06 12:05 GMT+02:00 Andrea Esposito <and1...@gmail.com>: > > Hi there, >> >> sorry if i'm posting a lot lately. >> >> i'm trying to add the KryoSerializer but i receive this exception: >> 2014 - 05 - 06 11: 45: 23 WARN TaskSetManager: 62 - Loss was due to >> java.io.EOFException >> java.io.EOFException >> at >> org.apache.spark.serializer.KryoDeserializationStream.readObject(KryoSerializer.scala: >> 105) >> at org.apache.spark.broadcast.HttpBroadcast$.read(HttpBroadcast.scala: >> 165) >> at >> org.apache.spark.broadcast.HttpBroadcast.readObject(HttpBroadcast.scala: 56) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: >> 57) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: >> 43) >> at java.lang.reflect.Method.invoke(Method.java: 606) >> >> I set the serializer as: >> System.setProperty("spark.serializer", >> "org.apache.spark.serializer.KryoSerializer") >> System.setProperty("spark.kryo.registrator", "test.TestKryoRegistrator") >> >> With or without register my custom registrator it throws the exception. >> >> Seems something related to broadcast.. but isn't Kryo already ok out of >> the box just setting it as default serializer? >> > >