Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/16901#discussion_r100885960
--- Diff:
core/src/test/scala/org/apache/spark/scheduler/DAGSchedulerSuite.scala ---
@@ -2161,6 +2161,48 @@ class DAGSchedulerSuite extends SparkFunSuite with
LocalSparkContext with Timeou
}
}
+ test("After fetching failed, success of old attempt of stage should be
taken as valid.") {
+ val rddA = new MyRDD(sc, 2, Nil)
+ val shuffleDepA = new ShuffleDependency(rddA, new HashPartitioner(2))
+ val shuffleIdA = shuffleDepA.shuffleId
+
+ val rddB = new MyRDD(sc, 2, List(shuffleDepA))
+ val shuffleDepB = new ShuffleDependency(rddB, new HashPartitioner(2))
+
+ val rddC = new MyRDD(sc, 2, List(shuffleDepB))
+
+ submit(rddC, Array(0, 1))
+ assert(taskSets(0).stageId === 0 && taskSets(0).stageAttemptId === 0)
+
+ complete(taskSets(0), Seq(
--- End diff --
add a comment saying something like "Complete both tasks in rddA"
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