title: What is the maximum size for a broadcast object in Spark?
body: <p>When using Dataframe <a href="http://spark.apache.org/docs/2.0.0/api/java/org/apache/spark/sql/functions.html#broadcast(org.apache.spark.sql.Dataset)" rel="noreferrer">broadcast</a> function or the SparkContext <a href="https://spark.apache.org/docs/2.0.0/api/java/org/apache/spark/SparkContext.html#broadcast(T,%20scala.reflect.ClassTag)" rel="noreferrer">broadcast</a> functions, what is the maximum object size that can be dispatched to all executors?</p>