yaooqinn commented on code in PR #2684:
URL: https://github.com/apache/incubator-kyuubi/pull/2684#discussion_r875514852


##########
kyuubi-ha/src/main/scala/org/apache/kyuubi/ha/client/ServiceDiscovery.scala:
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@@ -63,9 +63,22 @@ abstract class ServiceDiscovery(
 
   // stop the server genteelly
   def stopGracefully(isLost: Boolean = false): Unit = {
-    while (fe.be != null && fe.be.sessionManager.getOpenSessionCount > 0) {
-      debug(s"${fe.be.sessionManager.getOpenSessionCount} connection(s) are 
active, delay shutdown")
+    var lastOpenSessionCount = 0
+    var openSessionCount =
+      if (fe.be != null) {

Review Comment:
   we can remove this check here and L73



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