Github user luluorta commented on the pull request:
https://github.com/apache/spark/pull/1763#issuecomment-68027993
Thanks, @Earne
Actually we already had a method to customize the partition number of
EdgeRDD by using `Graph.partitionBy`
[Graph.scala#L136](https://github.com/apache/spark/blob/master/graphx/src/main/scala/org/apache/spark/graphx/Graph.scala#L136).
I guess the better name for the param of `coalesce(numEdgePartitions)` is
maxEdgePartitions, cause it is used for making sure the generated EdgeRDD with
no more than `maxEdgePartitions` partitions.
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