Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/19285#discussion_r139929616
--- Diff:
core/src/main/scala/org/apache/spark/storage/memory/MemoryStore.scala ---
@@ -233,17 +235,13 @@ private[spark] class MemoryStore(
}
if (keepUnrolling) {
- // We successfully unrolled the entirety of this block
- val arrayValues = vector.toArray
- vector = null
- val entry =
- new DeserializedMemoryEntry[T](arrayValues,
SizeEstimator.estimate(arrayValues), classTag)
- val size = entry.size
+ // get the precise size
+ val size = estimateSize(true)
--- End diff --
But the previous code just calls `entry.size`, are you fixing a new bug?
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