Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/16855#discussion_r100189090
--- Diff:
core/src/test/scala/org/apache/spark/scheduler/TaskSetManagerSuite.scala ---
@@ -664,6 +665,55 @@ class TaskSetManagerSuite extends SparkFunSuite with
LocalSparkContext with Logg
assert(thrown2.getMessage().contains("bigger than
spark.driver.maxResultSize"))
}
+ test("taskSetManager should not send Resubmitted tasks after being a
zombie") {
+ // Regression test for SPARK-13931
+ val conf = new SparkConf().set("spark.speculation", "true")
+ sc = new SparkContext("local", "test", conf)
+
+ val sched = new FakeTaskScheduler(sc, ("execA", "host1"), ("execB",
"host2"))
+ sched.initialize(new FakeSchedulerBackend() {
+ override def killTask(taskId: Long, executorId: String,
interruptThread: Boolean): Unit = {}
+ })
+
+ // count for Resubmitted tasks
+ var resubmittedTasks = 0
+ val dagScheduler = new FakeDAGScheduler(sc, sched) {
+ override def taskEnded(task: Task[_], reason: TaskEndReason, result:
Any,
+ accumUpdates: Seq[AccumulatorV2[_, _]],
taskInfo: TaskInfo): Unit = {
+ super.taskEnded(task, reason, result, accumUpdates, taskInfo)
+ reason match {
+ case Resubmitted => resubmittedTasks += 1
+ case _ =>
+ }
+ }
+ }
+ sched.setDAGScheduler(dagScheduler)
+
+ val tasks = Array.tabulate[Task[_]](1) { i =>
+ new ShuffleMapTask(i, 0, null, new Partition {
+ override def index: Int = 0
+ }, Seq(TaskLocation("host1", "execA")), new Properties, null)
+ }
+ val taskSet = new TaskSet(tasks, 0, 0, 0, null)
+ val manager = new TaskSetManager(sched, taskSet, MAX_TASK_FAILURES)
+ manager.speculatableTasks += tasks.head.partitionId
+ val task1 = manager.resourceOffer("execA", "host1",
TaskLocality.PROCESS_LOCAL).get
+ val task2 = manager.resourceOffer("execB", "host2",
TaskLocality.ANY).get
+
+ assert(manager.runningTasks == 2)
--- End diff --
can you use triple equals here and below? That way Scala Test will print
out the expected and actual values automatically.
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