Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/15915#discussion_r91893984
--- Diff:
core/src/main/scala/org/apache/spark/storage/memory/MemoryStore.scala ---
@@ -331,7 +332,7 @@ private[spark] class MemoryStore(
var unrollMemoryUsedByThisBlock = 0L
// Underlying buffer for unrolling the block
val redirectableStream = new RedirectableOutputStream
- val bbos = new
ChunkedByteBufferOutputStream(initialMemoryThreshold.toInt, allocator)
+ val bbos = new ChunkedByteBufferOutputStream(chunkSize, allocator)
--- End diff --
Don't we need to add check for the size? It still exposes to overflow by
converting `pageSizeBytes` from long to int, right?
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