Github user liyinan926 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21366#discussion_r190956385
--- Diff:
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/scheduler/cluster/k8s/KubernetesClusterManager.scala
---
@@ -56,17 +56,43 @@ private[spark] class KubernetesClusterManager extends
ExternalClusterManager wit
Some(new File(Config.KUBERNETES_SERVICE_ACCOUNT_TOKEN_PATH)),
Some(new File(Config.KUBERNETES_SERVICE_ACCOUNT_CA_CRT_PATH)))
- val allocatorExecutor = ThreadUtils
- .newDaemonSingleThreadScheduledExecutor("kubernetes-pod-allocator")
val requestExecutorsService = ThreadUtils.newDaemonCachedThreadPool(
"kubernetes-executor-requests")
+
+ val bufferEventsExecutor = ThreadUtils
+
.newDaemonSingleThreadScheduledExecutor("kubernetes-executor-pods-event-buffer")
+ val executeEventSubscribersExecutor = ThreadUtils
+ .newDaemonCachedThreadPool("kubernetes-executor-pods-event-handlers")
+ val eventQueue = new ExecutorPodsEventQueueImpl(
+ bufferEventsExecutor, executeEventSubscribersExecutor)
--- End diff --
You also need to shutdown those executors?
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