Github user shivaram commented on a diff in the pull request:
https://github.com/apache/spark/pull/2844#discussion_r19130957
--- Diff:
core/src/main/scala/org/apache/spark/broadcast/TorrentBroadcast.scala ---
@@ -227,6 +217,7 @@ private object TorrentBroadcast extends Logging {
* If removeFromDriver is true, also remove these persisted blocks on
the driver.
*/
def unpersist(id: Long, removeFromDriver: Boolean, blocking: Boolean) = {
+ logInfo(s"Unpersisting TorrentBroadcast $id")
--- End diff --
Its mostly for debugging what broadcasts have been removed and what has
not. It can be probably be made debug once we have a UI for this (#2851), but
right now this is the only way to figure out if a broadcast variable has been
removed by looking at the driver logs.
Also its just one line per broadcast variable (we have 2-3 lines per
variable when it is created)
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