Github user mateiz commented on a diff in the pull request:
https://github.com/apache/spark/pull/1519#discussion_r15302303
--- Diff: bagel/src/main/scala/org/apache/spark/bagel/Bagel.scala ---
@@ -72,6 +72,7 @@ object Bagel extends Logging {
var verts = vertices
var msgs = messages
var noActivity = false
+ var nextUseless: RDD[(K, (V, Array[M]))] = null
--- End diff --
Looks good, but maybe call this `lastRDD`
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