Transform Array in Spark

Question

val degrees: VertexRDD[Int] = graph.degrees
val ngb=graph.collectNeighbors(EdgeDirection.Out)
val deg2 = degrees.leftOuterJoin(ngb)

Now i want a key/value pair RDD where key is degree and value is neighbor vertex id. Basically i want to change from (id,Array[1,2,3]) to {(id,1)(id,2)(id,3)}

I have tried nested map and creating a string for the outer map. I am stuck here. If anyone can help. Thanks in advance.

Update with the code you have tried so we can help you! – eliasah Sep 02 '15 at 19:37 — eliasah, Sep 02 '15 at 19:37

score 1 · Answer 1 · answered Sep 02 '15 at 19:55

1

Sorry, got it myself. Did flatMap(y => y) with identity function. It was so simple.

answered Sep 02 '15 at 19:55

user2871856

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Transform Array in Spark

1 Answers1