Hi Folks, I'm new to GraphX and Scala and my sendMsg function needs to index into an input list to my algorithm based on the pregel()() iteration number, but I don't see a way to access that. I see in https://github.com/apache/spark/blob/master/graphx/src/main/scala/org/apache/spark/graphx/Pregel.scala that it's just an index variable "i" in a while loop, but is there a way for sendMsg to access within the loop's scope? I don't think so, so barring that, given Scala's functional stateless nature, what other approaches would you take to do this? I'm considering a closure, but a var that gets updated by all the sendMsgs seems a recipe for trouble.
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