jiangxb1987 commented on a change in pull request #26148:
[SPARK-29499][CORE][PYSPARK] Add mapPartitionsWithIndex for RDDBarrier
URL: https://github.com/apache/spark/pull/26148#discussion_r337019417
##########
File path: core/src/test/scala/org/apache/spark/rdd/RDDBarrierSuite.scala
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@@ -29,6 +29,15 @@ class RDDBarrierSuite extends SparkFunSuite with
SharedSparkContext {
assert(rdd2.isBarrier())
}
+ test("RDDBarrier mapPartitionsWithIndex") {
+ val rdd = sc.parallelize(1 to 12, 4)
+ assert(rdd.isBarrier() === false)
+
+ val rdd2 = rdd.barrier().mapPartitionsWithIndex((index, iter) =>
Iterator(index, iter.sum))
+ assert(rdd2.isBarrier())
+ assert(rdd2.collect().toList === List((0, 6), (1, 15), (2, 24), (3, 33)))
Review comment:
This might be true for now, but the result might change in the future, how
about just check the index of the result?
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