Github user ericl commented on a diff in the pull request: https://github.com/apache/spark/pull/17166#discussion_r107070457 --- Diff: core/src/test/scala/org/apache/spark/SparkContextSuite.scala --- @@ -540,6 +540,39 @@ class SparkContextSuite extends SparkFunSuite with LocalSparkContext with Eventu } } + // Launches one task that will run forever. Once the SparkListener detects the task has + // started, kill and re-schedule it. The second run of the task will complete immediately. + // If this test times out, then the first version of the task wasn't killed successfully. + test("Killing tasks") { + sc = new SparkContext(new SparkConf().setAppName("test").setMaster("local")) + + SparkContextSuite.isTaskStarted = false + SparkContextSuite.taskKilled = false + + val listener = new SparkListener { + override def onTaskStart(taskStart: SparkListenerTaskStart): Unit = { + eventually(timeout(10.seconds)) { + assert(SparkContextSuite.isTaskStarted) + } + if (!SparkContextSuite.taskKilled) { + SparkContextSuite.taskKilled = true + sc.killTaskAttempt(taskStart.taskInfo.taskId, true, "first attempt will hang") + } + } --- End diff -- Done
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