diff --git a/fizz-core/src/main/java/we/service_registry/FizzServiceRegistration.java b/fizz-core/src/main/java/we/service_registry/FizzServiceRegistration.java
index 0eef5ce..df74ac9 100644
--- a/fizz-core/src/main/java/we/service_registry/FizzServiceRegistration.java
+++ b/fizz-core/src/main/java/we/service_registry/FizzServiceRegistration.java
@@ -50,7 +50,7 @@ public abstract class FizzServiceRegistration {
         UP, DOWN, STARTING, OUT_OF_SERVICE, UNKNOWN;
     }
 
-    private   String          id;
+    protected String          id;
 
     private   Type            type;
 
@@ -91,12 +91,22 @@ public abstract class FizzServiceRegistration {
 
     public void register() {
         serviceRegistry.register(registration);
+        LOGGER.info("register to {} {}", type, id);
     }
 
     public void deregister() {
         serviceRegistry.deregister(registration);
+        LOGGER.info("deregister to {} {}", type, id);
     }
 
+    public void close() {
+        serviceRegistry.close();
+        shutdownClient();
+        LOGGER.info("close {} {}", type, id);
+    }
+
+    protected abstract void shutdownClient();
+
     public abstract ServerStatus          getServerStatus();
 
     public abstract List<String>          getServices();
diff --git a/fizz-core/src/main/java/we/service_registry/RegistryCenterService.java b/fizz-core/src/main/java/we/service_registry/RegistryCenterService.java
index 2d82f22..bceff00 100644
--- a/fizz-core/src/main/java/we/service_registry/RegistryCenterService.java
+++ b/fizz-core/src/main/java/we/service_registry/RegistryCenterService.java
@@ -32,7 +32,6 @@ import we.util.JacksonUtils;
 import we.util.Result;
 import we.util.ThreadContext;
 
-import javax.annotation.PostConstruct;
 import javax.annotation.Resource;
 import java.util.Collections;
 import java.util.HashMap;
@@ -45,7 +44,7 @@ import java.util.Map;
 @Service
 public class RegistryCenterService implements ApplicationListener<ContextRefreshedEvent>  {
 
-    private static final Logger log = LoggerFactory.getLogger(RegistryCenterService.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(RegistryCenterService.class);
 
     private Map<String, RegistryCenter> registryCenterMap = new HashMap<>();
 
@@ -81,7 +80,7 @@ public class RegistryCenterService implements ApplicationListener<ContextRefresh
                                                      json = (String) e.getValue();
                                                      RegistryCenter rc = JacksonUtils.readValue(json, RegistryCenter.class);
                                                      registryCenterMap.put(rc.name, rc);
-                                                     log.info("init registry center {}", rc.name);
+                                                     LOGGER.info("init registry center {}", rc);
                                                      rc.initFizzServiceRegistration(applicationContext);
                                                      rc.getFizzServiceRegistration().register();
                                                  }
@@ -91,7 +90,7 @@ public class RegistryCenterService implements ApplicationListener<ContextRefresh
                                                  result.t    = t;
                                              }
                                          } else {
-                                             log.info("no registry center");
+                                             LOGGER.info("no registry center");
                                          }
                                          return Mono.empty();
                                      }
@@ -118,12 +117,12 @@ public class RegistryCenterService implements ApplicationListener<ContextRefresh
                       result.code = Result.FAIL;
                       result.msg  = "lsn error, channel: " + channel;
                       result.t    = t;
-                      log.error("lsn channel {} error", channel, t);
+                      LOGGER.error("lsn channel {} error", channel, t);
                   }
           )
           .doOnSubscribe(
                   s -> {
-                      log.info("success to lsn on {}", channel);
+                      LOGGER.info("success to lsn on {}", channel);
                   }
           )
           .doOnNext(
@@ -134,19 +133,23 @@ public class RegistryCenterService implements ApplicationListener<ContextRefresh
                           RegistryCenter prev = null;
                           if (rc.isDeleted) {
                               prev = registryCenterMap.remove(rc.name);
-                              log.info("remove registry center {}", rc.name);
-                              prev.getFizzServiceRegistration().deregister();
+                              LOGGER.info("remove registry center {}", prev);
+                              FizzServiceRegistration fizzServiceRegistration = prev.getFizzServiceRegistration();
+                              fizzServiceRegistration.deregister();
+                              fizzServiceRegistration.close();
                           } else {
                               prev = registryCenterMap.put(rc.name, rc);
-                              log.info("update registry center {}", rc.name);
+                              LOGGER.info("update registry center {} with {}", prev, rc);
                               if (prev != null) {
-                                  prev.getFizzServiceRegistration().deregister();
+                                  FizzServiceRegistration fizzServiceRegistration = prev.getFizzServiceRegistration();
+                                  fizzServiceRegistration.deregister();
+                                  fizzServiceRegistration.close();
                               }
                               rc.initFizzServiceRegistration(applicationContext);
                               rc.getFizzServiceRegistration().register();
                           }
                       } catch (Throwable t) {
-                          log.error("update registry center error, {}", message, t);
+                          LOGGER.error("update registry center error, {}", message, t);
                       }
                   }
           )
diff --git a/fizz-core/src/main/java/we/service_registry/eureka/FizzEurekaServiceRegistration.java b/fizz-core/src/main/java/we/service_registry/eureka/FizzEurekaServiceRegistration.java
index d714a12..a8f2f74 100644
--- a/fizz-core/src/main/java/we/service_registry/eureka/FizzEurekaServiceRegistration.java
+++ b/fizz-core/src/main/java/we/service_registry/eureka/FizzEurekaServiceRegistration.java
@@ -55,6 +55,12 @@ public class FizzEurekaServiceRegistration extends FizzServiceRegistration {
         return client;
     }
 
+    @Override
+    protected void shutdownClient() {
+        client.shutdown();
+        LOGGER.info("shutdown {} client", id);
+    }
+
     @Override
     public ServerStatus getServerStatus() {
         EurekaClientConfig eurekaClientConfig = client.getEurekaClientConfig();
diff --git a/fizz-core/src/main/java/we/service_registry/nacos/FizzNacosServiceRegistration.java b/fizz-core/src/main/java/we/service_registry/nacos/FizzNacosServiceRegistration.java
index b9ff181..59c3e9e 100644
--- a/fizz-core/src/main/java/we/service_registry/nacos/FizzNacosServiceRegistration.java
+++ b/fizz-core/src/main/java/we/service_registry/nacos/FizzNacosServiceRegistration.java
@@ -67,6 +67,10 @@ public class FizzNacosServiceRegistration extends FizzServiceRegistration {
         return namingService;
     }
 
+    @Override
+    protected void shutdownClient() {
+    }
+
     @Override
     public ServerStatus getServerStatus() {
         String status = namingService.getServerStatus();