Hi there, Seems one can not materialize VertexRDD by simply calling count method, which is overridden by VertexRDD. But if you call RDD's count, it could materialize it.
Is this a feature that designed to get the count without materialize VertexRDD? If so, do you guys think it is necessary to add a materialize method to VertexRDD? I did that and ready to send a pull request, but I just want to make sure this is reasonable. By the way, does count() is the cheapest way to materialize a RDD? Or it just cost the same resources like other actions? Best, -- View this message in context: http://apache-spark-developers-list.1001551.n3.nabble.com/GraphX-s-VertexRDD-can-not-be-materialized-by-calling-count-tp7065.html Sent from the Apache Spark Developers List mailing list archive at Nabble.com.
