cloud-fan commented on a change in pull request #32717:
URL: https://github.com/apache/spark/pull/32717#discussion_r646288274
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryRelation.scala
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@@ -225,10 +228,25 @@ case class CachedRDDBuilder(
_cachedColumnBuffers
}
+ def manualClose[T <: CachedBatch](entry: T): T = {
+ entry match {
+ case o: AutoCloseable =>
+ try {
+ o.close
+ } catch {
+ case NonFatal(e) =>
+ logWarning("Fail to close a memory entry", e)
+ }
+ case _ =>
+ }
+ entry
+ }
+
def clearCache(blocking: Boolean = false): Unit = {
if (_cachedColumnBuffers != null) {
synchronized {
if (_cachedColumnBuffers != null) {
+ _cachedColumnBuffers.foreach(manualClose)
_cachedColumnBuffers.unpersist(blocking)
Review comment:
`RDD.unpersist` will go to the new code path you added in `MemoryStore`,
and release the memory, or do I miss something?
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