Github user sun-rui commented on a diff in the pull request:
https://github.com/apache/spark/pull/14175#discussion_r73823040
--- Diff:
core/src/test/scala/org/apache/spark/scheduler/cluster/mesos/MesosCoarseGrainedSchedulerBackendSuite.scala
---
@@ -341,6 +344,32 @@ class MesosCoarseGrainedSchedulerBackendSuite extends
SparkFunSuite
assert(!dockerInfo.getForcePullImage)
}
+ test("Do not call parent methods like removeExecutor() after backend is
stopped") {
+ setBackend()
+
+ // launches a task on a valid offer
+ val offers = List((backend.executorMemory(sc), 1))
+ offerResources(offers)
+ verifyTaskLaunched(driver, "o1")
+
+ // launches a thread simulating status update
+ val statusUpdateThread = new Thread {
+ override def run(): Unit = {
+ while (!stopCalled) {
+ Thread.sleep(100)
+ }
+
+ val status = createTaskStatus("0", "s1", TaskState.TASK_FINISHED)
+ backend.statusUpdate(driver, status)
+ }
+ }.start
+
+ backend.stop
+ // Any method of the backend involving sending messages to the driver
endpoint should not
+ // be called after the backend is stopped.
+ verify(driverEndpoint,
never()).askWithRetry(isA(classOf[RemoveExecutor]))(any[ClassTag[_]])
--- End diff --
I tried to do this. but found that driverEndpoint is mocked. Since the
exception is thrown from within RemoveExecutor, I think this has the same
purpose.
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