Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/3798#discussion_r22498831
--- Diff: core/src/main/scala/org/apache/spark/rdd/RDD.scala ---
@@ -788,6 +788,20 @@ abstract class RDD[T: ClassTag](
}
/**
+ * Applies a function to each partition of this RDD, while tracking the
index
+ * of the original partition.
+ */
+ def foreachPartitionWithIndex(
--- End diff --
No no, I am not suggesting anything. I am just narrowing the scope the PR
by eliminating anything that is not immediately needed in this PR (basic Kafka
functionality). There is already a lot more code necessary for this to be
viable completely alternative (Driver fault-tolerance, etc.) and it would be
good to focus on only that in this PR. The `foreachPartitionWithIndex` seems
like something that can be done later independently in a different PR.
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