beliefer commented on a change in pull request #23650: [SPARK-26728]Make
rdd.unpersist blocking configurable
URL: https://github.com/apache/spark/pull/23650#discussion_r251297717
##########
File path: core/src/main/scala/org/apache/spark/rdd/RDD.scala
##########
@@ -209,13 +210,14 @@ abstract class RDD[T: ClassTag](
*/
def cache(): this.type = persist()
+ private val unpersistBlocking = conf.get(RDD_UNPERSIST_BLOCKING)
/**
* Mark the RDD as non-persistent, and remove all blocks for it from memory
and disk.
*
* @param blocking Whether to block until all blocks are deleted.
* @return This RDD.
*/
- def unpersist(blocking: Boolean = true): this.type = {
+ def unpersist(blocking: Boolean = unpersistBlocking): this.type = {
Review comment:
Maybe this pr is a temp solution for how to avoid RPC issue. There are
unable to prove the the measure is effective before a lot of discussion about
the blocking of unpersist in detail.
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