Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/3026#discussion_r19694419
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/ReceiverTracker.scala
---
@@ -48,23 +49,28 @@ private[streaming] case class
DeregisterReceiver(streamId: Int, msg: String, err
* This class manages the execution of the receivers of
NetworkInputDStreams. Instance of
* this class must be created after all input streams have been added and
StreamingContext.start()
* has been called because it needs the final set of input streams at the
time of instantiation.
+ *
+ * @param skipReceiverLaunch Do not launch the receiver. This is useful
for testing.
*/
private[streaming]
-class ReceiverTracker(ssc: StreamingContext) extends Logging {
+class ReceiverTracker(ssc: StreamingContext, skipReceiverLaunch: Boolean =
false) extends Logging {
- val receiverInputStreams = ssc.graph.getReceiverInputStreams()
- val receiverInputStreamMap = Map(receiverInputStreams.map(x => (x.id,
x)): _*)
- val receiverExecutor = new ReceiverLauncher()
- val receiverInfo = new HashMap[Int, ReceiverInfo] with
SynchronizedMap[Int, ReceiverInfo]
- val receivedBlockInfo = new HashMap[Int,
SynchronizedQueue[ReceivedBlockInfo]]
- with SynchronizedMap[Int, SynchronizedQueue[ReceivedBlockInfo]]
- val timeout = AkkaUtils.askTimeout(ssc.conf)
- val listenerBus = ssc.scheduler.listenerBus
+ private val receiverInputStreams = ssc.graph.getReceiverInputStreams()
+ private val receiverInputStreamMap = Map(receiverInputStreams.map(x =>
(x.id, x)): _*)
--- End diff --
could this just be `.toMap()` instead?
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