Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/4032#discussion_r23360371
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/ReceivedBlockTracker.scala
---
@@ -106,6 +106,12 @@ private[streaming] class ReceivedBlockTracker(
timeToAllocatedBlocks(batchTime) = allocatedBlocks
lastAllocatedBatchTime = batchTime
allocatedBlocks
+ } else if (batchTime == lastAllocatedBatchTime) {
--- End diff --
Could you improve the unit test to actually verify the behavior. The unit
test line you removed can be modified to verify that calling `batchTime` =
`lastAllocatedBatchTime` is a no-op and does no allocation.
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