Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/16989#discussion_r115639242
--- Diff:
core/src/main/scala/org/apache/spark/storage/ShuffleBlockFetcherIterator.scala
---
@@ -137,6 +143,9 @@ final class ShuffleBlockFetcherIterator(
// Release the current buffer if necessary
if (currentResult != null) {
currentResult.buf.release()
+ if (blocksShuffleToMem.contains(currentResult.blockId.toString)) {
+ freeMemory(currentResult.size)
--- End diff --
shall we also remove the block id from `blocksShuffleToMem`?
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