Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/16189#discussion_r92254841
--- Diff: core/src/main/scala/org/apache/spark/executor/Executor.scala ---
@@ -161,12 +163,7 @@ private[spark] class Executor(
* @param interruptThread whether to interrupt the task thread
*/
def killAllTasks(interruptThread: Boolean) : Unit = {
- // kill all the running tasks
- for (taskRunner <- runningTasks.values().asScala) {
- if (taskRunner != null) {
- taskRunner.kill(interruptThread)
- }
- }
+ runningTasks.keys().asScala.foreach(t => killTask(t, interruptThread =
interruptThread))
--- End diff --
For maximum conservatism, I agree that it probably makes sense to flag this
off by default. Even if we don't have the "kill the JVM" behavior it's still
useful to have the watchdog to pull thread dumps and write logs to indicate
what's happening with the zombie tasks, so I think that the killing and polling
should be controlled by separate flags. Let me figure out how to control these
separately.
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