Github user kayousterhout commented on a diff in the pull request: https://github.com/apache/spark/pull/16639#discussion_r100413614 --- Diff: core/src/test/scala/org/apache/spark/executor/ExecutorSuite.scala --- @@ -133,6 +123,153 @@ class ExecutorSuite extends SparkFunSuite { } } } + + test("SPARK-19276: Handle Fetch Failed for all intervening user code") { + val conf = new SparkConf().setMaster("local").setAppName("executor suite test") + sc = new SparkContext(conf) + + val serializer = SparkEnv.get.closureSerializer.newInstance() + val resultFunc = (context: TaskContext, itr: Iterator[Int]) => itr.size + val inputRDD = new FakeShuffleRDD(sc) + val secondRDD = new FetchFailureHidingRDD(sc, inputRDD) + val taskBinary = sc.broadcast(serializer.serialize((secondRDD, resultFunc)).array()) + val serializedTaskMetrics = serializer.serialize(TaskMetrics.registered).array() + val task = new ResultTask( + stageId = 1, + stageAttemptId = 0, + taskBinary = taskBinary, + partition = secondRDD.partitions(0), + locs = Seq(), + outputId = 0, + localProperties = new Properties(), + serializedTaskMetrics = serializedTaskMetrics + ) + + val serTask = serializer.serialize(task) + val taskDescription = fakeTaskDescription(serTask) + + + val failReason = runTaskAndGetFailReason(taskDescription) --- End diff -- can you add a comment about what's going on here? I think the FFE gets thrown because the shuffle map data was never generated? And then you're checking that it's correctly accounted for, even though the user RDD code wrapped the exception in something else?
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