Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/10609#discussion_r49112106
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/util/StateMap.scala ---
@@ -77,21 +81,26 @@ private[streaming] class EmptyStateMap[K: ClassTag, S:
ClassTag] extends StateMa
}
/** Implementation of StateMap based on Spark's
[[org.apache.spark.util.collection.OpenHashMap]] */
-private[streaming] class OpenHashMapBasedStateMap[K: ClassTag, S:
ClassTag](
+private[streaming] class OpenHashMapBasedStateMap[K, S](
@transient @volatile var parentStateMap: StateMap[K, S],
- initialCapacity: Int = DEFAULT_INITIAL_CAPACITY,
- deltaChainThreshold: Int = DELTA_CHAIN_LENGTH_THRESHOLD
- ) extends StateMap[K, S] { self =>
+ private var initialCapacity: Int = DEFAULT_INITIAL_CAPACITY,
+ private var deltaChainThreshold: Int = DELTA_CHAIN_LENGTH_THRESHOLD
+ )(implicit private var keyClassTag: ClassTag[K], private var
stateClassTag: ClassTag[S])
--- End diff --
Add `keyClassTag` and `stateClassTag` so that we can recover them.
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