Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/2933#discussion_r19369470
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -124,6 +123,10 @@ class DAGScheduler(
/** If enabled, we may run certain actions like take() and first()
locally. */
private val localExecutionEnabled =
sc.getConf.getBoolean("spark.localExecution.enabled", false)
+ /** Broadcast the serialized tasks only when they are bigger than it */
+ private val broadcastTaskMinSize =
+ sc.getConf.getInt("spark.scheduler.broadcastTaskMinSize", 8) * 1024
--- End diff --
As discussed offline, user will take the risk if they change it to
non-reasonable values.
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