Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/911#discussion_r14794612
--- Diff:
external/kafka/src/main/scala/org/apache/spark/streaming/kafka/KafkaUtils.scala
---
@@ -70,7 +92,7 @@ object KafkaUtils {
kafkaParams: Map[String, String],
topics: Map[String, Int],
storageLevel: StorageLevel
- ): ReceiverInputDStream[(K, V)] = {
+ ): DStream[(K, V)] = {
--- End diff --
I see the problem. Yes, after union you obviously cannot get a
ReceiverInputDStream as union return DStreams, but the createStream should
ideally return ReceiverInputDStream for consistency.
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