Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/10609#discussion_r49111736
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/util/StateMap.scala ---
@@ -77,6 +80,7 @@ private[streaming] class EmptyStateMap[K: ClassTag, S:
ClassTag] extends StateMa
}
/** Implementation of StateMap based on Spark's
[[org.apache.spark.util.collection.OpenHashMap]] */
+@DefaultSerializer(classOf[KryoJavaSerializer])
--- End diff --
Actually, this is not a correct fix because the user can put objects that
only support Kryo into this Map. KryoJavaSerializer cannot handle them. Fixed
this issue in my latest commit.
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