wangyang0918 commented on issue #11427: [FLINK-15790][k8s] Make FlinkKubeClient and its implementations asynchronous URL: https://github.com/apache/flink/pull/11427#issuecomment-613886358 @azagrebin For YARN, the `AMRMAsyncClient.unregisterApplicationMaster` is a blocking call. Currently, the same for the `FlinkKubeClient#stopAndCleanupCluster`. I am not very familiar with mesos, but from the `SchedulerDriver` implementation, i do not see it is an async call. So it seems all the `internalDeregisterApplication` implementations now are blocking. I prefer to create a new ticket "Make ResourceManager#internalDeregisterApplication and implementation asynchronous", which will deal with them together.
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