Github user aarondav commented on a diff in the pull request:
https://github.com/apache/spark/pull/707#discussion_r12463199
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/ShuffleMapTask.scala ---
@@ -58,15 +58,13 @@ private[spark] object ShuffleMapTask {
}
def deserializeInfo(stageId: Int, bytes: Array[Byte]): (RDD[_],
ShuffleDependency[_,_]) = {
- synchronized {
- val loader = Thread.currentThread.getContextClassLoader
- val in = new GZIPInputStream(new ByteArrayInputStream(bytes))
- val ser = SparkEnv.get.closureSerializer.newInstance()
- val objIn = ser.deserializeStream(in)
- val rdd = objIn.readObject().asInstanceOf[RDD[_]]
- val dep = objIn.readObject().asInstanceOf[ShuffleDependency[_,_]]
- (rdd, dep)
- }
+ val loader = Thread.currentThread.getContextClassLoader
--- End diff --
I think this value is not used anymore.
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