I am experiencing the same issue (I tried both using Kryo as serializer and increasing the buffer size up to 256M, my objects are much smaller though). I share my registrator class just in case:
https://gist.github.com/JordiAranda/5cc16cf102290c413c82 Any hints would be highly appreciated. Thanks, -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/KryoSerializer-Exception-tp5435p6428.html Sent from the Apache Spark User List mailing list archive at Nabble.com.