I would guess the field serializer is having issues being able to reconstruct the class again, its pretty much best effort.
Is this an intermediate type? On Thu, Sep 25, 2014 at 2:12 PM, Sandy Ryza <sandy.r...@cloudera.com> wrote: > We're running into an error (below) when trying to read spilled shuffle > data back in. > > Has anybody encountered this before / is anybody familiar with what causes > these Kryo UnsupportedOperationExceptions? > > any guidance appreciated, > Sandy > > --- > com.esotericsoftware.kryo.KryoException > (com.esotericsoftware.kryo.KryoException: > java.lang.UnsupportedOperationException Serialization trace: <omitted > variable name> (<omitted class name>) <omitted variable name> (<omitted > class name>)) > > > com.esotericsoftware.kryo.serializers.FieldSerializer$ObjectField.read(FieldSerializer.java:626) > > > com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:221) > > com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:648) > > > com.esotericsoftware.kryo.serializers.FieldSerializer$ObjectField.read(FieldSerializer.java:605) > > > com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:221) > > com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:729) > > com.twitter.chill.TraversableSerializer.read(Traversable.scala:44) > ... > >
