Github user dibbhatt commented on a diff in the pull request:
https://github.com/apache/spark/pull/6707#discussion_r31933693
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/receiver/ReceivedBlockHandler.scala
---
@@ -151,12 +165,18 @@ private[streaming] class
WriteAheadLogBasedBlockHandler(
*/
def storeBlock(blockId: StreamBlockId, block: ReceivedBlock):
ReceivedBlockStoreResult = {
+ var numRecords = None: Option[Long]
+ val countIterator = block match {
+ case ArrayBufferBlock(arrayBuffer) => new
CountingIterator(arrayBuffer.iterator)
+ case IteratorBlock(iterator) => new CountingIterator(iterator)
+ case _ => null
+ }
// Serialize the block so that it can be inserted into both
val serializedBlock = block match {
case ArrayBufferBlock(arrayBuffer) =>
- blockManager.dataSerialize(blockId, arrayBuffer.iterator)
+ blockManager.dataSerialize(blockId, countIterator)
--- End diff --
Yes, this is fine.. As for WAL based handler, block count can be done here
while it does dataSerialize..
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