Github user srowen commented on a diff in the pull request: https://github.com/apache/spark/pull/22995#discussion_r236726776 --- Diff: core/src/main/scala/org/apache/spark/broadcast/TorrentBroadcast.scala --- @@ -92,8 +95,15 @@ private[spark] class TorrentBroadcast[T: ClassTag](obj: T, id: Long) /** The checksum for all the blocks. */ private var checksums: Array[Int] = _ - override protected def getValue() = { - _value + override protected def getValue() = synchronized { --- End diff -- We need two locks, one to protect the local reference to the block, and one to protect the shared cache object. I was thinking of the former.
--- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org