Can you paste the piece of code at least? Not sure, but it seems you are reading/writing an object at the same time. You can try disabling kryo and that might give you a proper exception stack.
Thanks Best Regards On Thu, May 28, 2015 at 2:45 PM, randylu <randyl...@gmail.com> wrote: > begs for your help > > > > -- > View this message in context: > http://apache-spark-user-list.1001560.n3.nabble.com/why-does-com-esotericsoftware-kryo-KryoException-java-u-til-ConcurrentModificationException-happen-tp23067p23068.html > Sent from the Apache Spark User List mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@spark.apache.org > For additional commands, e-mail: user-h...@spark.apache.org > >
