Github user feynmanliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/11374#discussion_r85647454
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/api/python/PythonMLLibAPI.scala ---
@@ -1358,6 +1363,41 @@ private[spark] abstract class SerDeBase {
}
}.toJavaRDD()
}
+
+ /**
+ * Convert a DStream of Java objects to a DStream of serialized Python
objects, that is usable by
+ * PySpark.
+ */
+ def javaToPython(jDStream: JavaDStream[Any]): JavaDStream[Array[Byte]] =
{
+ val dStream = jDStream.dstream.mapPartitions { iter =>
+ initialize() // let it called in executor
+ new SerDeUtil.AutoBatchedPickler(iter)
--- End diff --
This should be an `Array[Byte]`, so you don't need to assign to `dStream`
and then call the constructor on L1376
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