Github user JeetKunDoug commented on a diff in the pull request:
https://github.com/apache/spark/pull/21322#discussion_r188295537
--- Diff:
core/src/main/scala/org/apache/spark/storage/memory/MemoryStore.scala ---
@@ -384,15 +385,36 @@ private[spark] class MemoryStore(
}
}
+ private def maybeReleaseResources(entry: MemoryEntry[_]): Unit = {
+ entry match {
+ case SerializedMemoryEntry(buffer, _, _) => buffer.dispose()
+ case DeserializedMemoryEntry(objs: Array[Any], _, _) =>
maybeCloseValues(objs)
--- End diff --
I wouldn't expect a never-deserialized Memory Entry to be closed, as it was
never really instantiated to begin with - so if it _only_ lands on disk, I
think that's reasonable (as the variable in question would never have had a
chance to allocate anything either).
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