azagrebin commented on a change in pull request #11427: [FLINK-15790][k8s] Make 
FlinkKubeClient and its implementations asynchronous
URL: https://github.com/apache/flink/pull/11427#discussion_r405353674
 
 

 ##########
 File path: 
flink-kubernetes/src/test/java/org/apache/flink/kubernetes/KubernetesTestBase.java
 ##########
 @@ -84,7 +85,10 @@ public void setup() throws Exception {
                TestBaseUtils.setEnv(map);
 
                kubeClient = server.getClient().inNamespace(NAMESPACE);
-               flinkKubeClient = new Fabric8FlinkKubeClient(flinkConfig, 
kubeClient);
+               flinkKubeClient = new Fabric8FlinkKubeClient(
+                       flinkConfig,
+                       kubeClient,
+                       Executors::newDirectExecutorService);
 
 Review comment:
   `Fabric8FlinkKubeClientTest` uses a direct executor which technically allows 
not to call `get()` on the pod creation/stop futures in the corresponding 
tests. I would still call `get()` to avoid confusion in case of any future 
executor refactorings

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