Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/550#discussion_r12023299
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/ReceiverTracker.scala
---
@@ -267,7 +267,7 @@ class ReceiverTracker(ssc: StreamingContext) extends
Logging {
// Run the dummy Spark job to ensure that all slaves have registered.
// This avoids all the receivers to be scheduled on the same node.
if (!ssc.sparkContext.isLocal) {
- ssc.sparkContext.makeRDD(1 to 50, 50).map(x => (x,
1)).reduceByKey(_ + _, 20).collect()
+ ssc.sparkContext.makeRDD(1 to 50, 50).map(x => (x,
1)).reduceByKey((x: Int, y: Int) => x + y, 20).collect()
--- End diff --
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