Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/5114#discussion_r26910218
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/dstream/ReceiverInputDStream.scala
---
@@ -54,6 +55,14 @@ abstract class ReceiverInputDStream[T:
ClassTag](@transient ssc_ : StreamingCont
def stop() {}
+ def setPreferredLocation(_preferredLocation: String){
+ if (null != _preferredLocation){
+ this._preferredLocation = Some(_preferredLocation)
+ }
--- End diff --
This can be simplified as `this._preferredLocation =
Option(_preferredLocation)`.
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