I think Sampo's thought is to get a function that only tests if a RDD is empty. He does not want to know the size of the RDD, and getting the size of a RDD is expensive for large data sets.
I myself saw many times that my app threw out exceptions because an empty RDD cannot be saved. This is not big issue, but annoying. Having a cheap solution testing if an RDD is empty would be nice if there is no such thing available now. -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Testing-if-an-RDD-is-empty-tp1678p21175.html Sent from the Apache Spark User List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org
