A broadcast variable.
:: DeveloperApi :: An interface for all the broadcast implementations in Spark (to allow multiple broadcast implementations).
A org.apache.spark.broadcast.BroadcastFactory implementation that uses a HTTP server as the broadcast mechanism.
A org.apache.spark.broadcast.Broadcast implementation that uses a BitTorrent-like protocol to do a distributed transfer of the broadcasted data to the executors.
Spark's broadcast variables, used to broadcast immutable datasets to all nodes.