[ISSUE #11951] Fix the problem that the servicename and groupname are not resolved correctly when deleting an empty service instance (#11955)

* Fixed an issue where the maximum number of anti-fragile plug-ins implemented by default in Nacos is one more than the actual number of connections.

* bug fix : 修改删除空服务实例时，服务名和分组名没有正确解析的问题

naming/src/main/java/com/alibaba/nacos/naming/controllers/ServiceController.java

@@ -131,7 +131,8 @@ public class ServiceController {
         
         getServiceOperator().delete(namespaceId, serviceName);
         NotifyCenter.publishEvent(
-                new DeregisterServiceTraceEvent(System.currentTimeMillis(), namespaceId, "", serviceName));
+                new DeregisterServiceTraceEvent(System.currentTimeMillis(), namespaceId,
+                        NamingUtils.getGroupName(serviceName), NamingUtils.getServiceName(serviceName)));
         return "ok";
     }