Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/44#discussion_r10194343
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -847,6 +847,8 @@ class SparkContext(
partitions: Seq[Int],
allowLocal: Boolean,
resultHandler: (Int, U) => Unit) {
+ val rddPartitions = rdd.partitions.map(_.index)
+ require(partitions.forall(rddPartitions.contains(_)), "partition index
out of range")
--- End diff --
@witgo so in the case you mentioned, why not put this check in the
constructor of ShuffleRDD? It seems more natural to check it there rather than
inside of runjob.
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