Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/11436#discussion_r54613238
--- Diff: core/src/main/scala/org/apache/spark/rdd/RDD.scala ---
@@ -315,6 +315,34 @@ abstract class RDD[T: ClassTag](
}
/**
+ * Gets or computes an RDD partition. Used by RDD.iterator() when an RDD
is cached.
--- End diff --
Can you add that this is only called on the executors? (otherwise people
might wonder why we don't just use `sc.env` instead of `SparkEnv.get`)
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