wangyang0918 commented on code in PR #191:
URL: 
https://github.com/apache/flink-kubernetes-operator/pull/191#discussion_r863874296


##########
flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/config/FlinkConfigManager.java:
##########
@@ -87,8 +89,15 @@ public Configuration load(Key k) {
                                 });
 
         updateDefaultConfig(defaultConfig);
+        ScheduledExecutorService executorService = 
Executors.newSingleThreadScheduledExecutor();

Review Comment:
   It seems that the `executorService` is never shutdown. It might not be a 
major problem because the `FlinkConfigManager` has the same lifecycle with 
whole process.



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