mridulm commented on a change in pull request #33872:
URL: https://github.com/apache/spark/pull/33872#discussion_r700643399
##########
File path:
core/src/test/scala/org/apache/spark/scheduler/TaskSchedulerImplSuite.scala
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@@ -1995,6 +1996,87 @@ class TaskSchedulerImplSuite extends SparkFunSuite with
LocalSparkContext with B
assert(!normalTSM.runningTasksSet.contains(taskId))
}
+ test("SPARK-36575: Executor lost cause task hang") {
+ val taskScheduler = setupScheduler()
+
+ val latch = new CountDownLatch(2)
+ val resultGetter = new TaskResultGetter(sc.env, taskScheduler) {
+ override protected val getTaskResultExecutor: ExecutorService =
+ new ThreadPoolExecutor(1, 1, 0L, TimeUnit.MILLISECONDS, new
LinkedBlockingQueue[Runnable],
+ ThreadUtils.namedThreadFactory("task-result-getter")) {
+ override def execute(command: Runnable): Unit = {
+ super.execute(new Runnable {
+ override def run(): Unit = {
+ command.run()
+ latch.countDown()
+ }
+ })
+ }
+ }
+ def taskResultExecutor() : ExecutorService = getTaskResultExecutor
+ }
+ taskScheduler.taskResultGetter = resultGetter
+
+ val workerOffers = IndexedSeq(new WorkerOffer("executor0", "host0", 1),
+ new WorkerOffer("executor1", "host1", 1))
+ val task1 = new ShuffleMapTask(1, 0, null, new Partition {
+ override def index: Int = 0
+ }, Seq(TaskLocation("host0", "executor0")), new Properties, null)
+
+ val task2 = new ShuffleMapTask(1, 0, null, new Partition {
+ override def index: Int = 0
Review comment:
Both tasks have the same partition index - can you fix them to be
different, and then get the testcase to surface the issue ?
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