Merge branch 'develop'
diff --git a/README.md b/README.md
index d4f6cab..d1354fd 100644
--- a/README.md
+++ b/README.md
@@ -236,6 +236,16 @@
           <img width="222px"  src="https://i.gsxcdn.com/0cms/d/file/content/2020/02/5e572137d7d94.png">
         </a>
       </td>
+      <td align="center"  valign="middle">
+        <a href="http://www.51h5.com" target="_blank">
+          <img width="222px"  src="https://fs-ews.51h5.com/common/hw_220_black.png">
+        </a>
+      </td>
+      <td align="center"  valign="middle">
+        <a href="https://www.zto.com" target="_blank">
+          <img width="222px"  src="https://fscdn.zto.com/fs8/M02/B2/E4/wKhBD1-8o52Ae3GnAAASU3r62ME040.png">
+        </a>
+      </td>
     </tr>
     <tr></tr>
   </tbody>
diff --git a/README_CN.md b/README_CN.md
index fc9eec8..4645fb2 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -234,6 +234,16 @@
           <img width="222px"  src="https://i.gsxcdn.com/0cms/d/file/content/2020/02/5e572137d7d94.png">
         </a>
       </td>
+      <td align="center"  valign="middle">
+        <a href="http://www.51h5.com" target="_blank">
+          <img width="222px"  src="https://fs-ews.51h5.com/common/hw_220_black.png">
+        </a>
+      </td>
+      <td align="center"  valign="middle">
+        <a href="https://www.zto.com" target="_blank">
+          <img width="222px"  src="https://fscdn.zto.com/fs8/M02/B2/E4/wKhBD1-8o52Ae3GnAAASU3r62ME040.png">
+        </a>
+      </td>
     </tr>
     <tr></tr>
   </tbody>
diff --git a/cluster/cluster_impl/base_cluster_invoker.go b/cluster/cluster_impl/base_cluster_invoker.go
index 0ac851f..ed30559 100644
--- a/cluster/cluster_impl/base_cluster_invoker.go
+++ b/cluster/cluster_impl/base_cluster_invoker.go
@@ -51,7 +51,7 @@
 	}
 }
 
-func (invoker *baseClusterInvoker) GetUrl() common.URL {
+func (invoker *baseClusterInvoker) GetUrl() *common.URL {
 	return invoker.directory.GetUrl()
 }
 
diff --git a/cluster/cluster_impl/failover_cluster_test.go b/cluster/cluster_impl/failover_cluster_test.go
index d3ac2c8..3ea6232 100644
--- a/cluster/cluster_impl/failover_cluster_test.go
+++ b/cluster/cluster_impl/failover_cluster_test.go
@@ -45,7 +45,7 @@
 
 // nolint
 type MockInvoker struct {
-	url       common.URL
+	url       *common.URL
 	available bool
 	destroyed bool
 
@@ -53,7 +53,7 @@
 }
 
 // nolint
-func NewMockInvoker(url common.URL, successCount int) *MockInvoker {
+func NewMockInvoker(url *common.URL, successCount int) *MockInvoker {
 	return &MockInvoker{
 		url:          url,
 		available:    true,
@@ -63,7 +63,7 @@
 }
 
 // nolint
-func (bi *MockInvoker) GetUrl() common.URL {
+func (bi *MockInvoker) GetUrl() *common.URL {
 	return bi.url
 }
 
diff --git a/cluster/directory/base_directory.go b/cluster/directory/base_directory.go
index 20db1f2..d1025a1 100644
--- a/cluster/directory/base_directory.go
+++ b/cluster/directory/base_directory.go
@@ -65,8 +65,8 @@
 }
 
 // GetUrl Get URL
-func (dir *BaseDirectory) GetUrl() common.URL {
-	return *dir.url
+func (dir *BaseDirectory) GetUrl() *common.URL {
+	return dir.url
 }
 
 // GetDirectoryUrl Get URL instance
diff --git a/cluster/directory/base_directory_test.go b/cluster/directory/base_directory_test.go
index e51e533..16e3c5a 100644
--- a/cluster/directory/base_directory_test.go
+++ b/cluster/directory/base_directory_test.go
@@ -40,19 +40,16 @@
 )
 
 func TestNewBaseDirectory(t *testing.T) {
-	directory := NewBaseDirectory(&url)
-	assert.NotNil(t, directory)
-	assert.Equal(t, url, directory.GetUrl())
-	assert.Equal(t, &url, directory.GetDirectoryUrl())
+	dir := NewBaseDirectory(url)
+	assert.Equal(t, url, dir.GetUrl())
+	assert.Equal(t, url, dir.GetDirectoryUrl())
 }
 
 func TestBuildRouterChain(t *testing.T) {
 
 	regURL := url
 	regURL.AddParam(constant.INTERFACE_KEY, "mock-app")
-	directory := NewBaseDirectory(&regURL)
-
-	assert.NotNil(t, directory)
+	directory := NewBaseDirectory(regURL)
 
 	localIP := common.GetLocalIp()
 	rule := base64.URLEncoding.EncodeToString([]byte("true => " + " host = " + localIP))
@@ -66,18 +63,18 @@
 	assert.NotNil(t, chain)
 }
 
-func getRouteURL(rule string, u common.URL) *common.URL {
+func getRouteURL(rule string, u *common.URL) *common.URL {
 	ru := u
 	ru.AddParam("rule", rule)
 	ru.AddParam("force", "true")
 	ru.AddParam(constant.ROUTER_KEY, "router")
-	return &ru
+	return ru
 }
 
 func TestIsProperRouter(t *testing.T) {
 	regURL := url
 	regURL.AddParam(constant.APPLICATION_KEY, "mock-app")
-	d := NewBaseDirectory(&regURL)
+	d := NewBaseDirectory(regURL)
 	localIP := common.GetLocalIp()
 	rule := base64.URLEncoding.EncodeToString([]byte("true => " + " host = " + localIP))
 	routeURL := getRouteURL(rule, anyURL)
@@ -87,7 +84,7 @@
 
 	regURL.AddParam(constant.APPLICATION_KEY, "")
 	regURL.AddParam(constant.INTERFACE_KEY, "com.foo.BarService")
-	d = NewBaseDirectory(&regURL)
+	d = NewBaseDirectory(regURL)
 	routeURL = getRouteURL(rule, anyURL)
 	routeURL.AddParam(constant.INTERFACE_KEY, "com.foo.BarService")
 	rst = d.isProperRouter(routeURL)
@@ -95,14 +92,14 @@
 
 	regURL.AddParam(constant.APPLICATION_KEY, "")
 	regURL.AddParam(constant.INTERFACE_KEY, "")
-	d = NewBaseDirectory(&regURL)
+	d = NewBaseDirectory(regURL)
 	routeURL = getRouteURL(rule, anyURL)
 	rst = d.isProperRouter(routeURL)
 	assert.True(t, rst)
 
 	regURL.SetParam(constant.APPLICATION_KEY, "")
 	regURL.SetParam(constant.INTERFACE_KEY, "")
-	d = NewBaseDirectory(&regURL)
+	d = NewBaseDirectory(regURL)
 	routeURL = getRouteURL(rule, anyURL)
 	routeURL.AddParam(constant.APPLICATION_KEY, "mock-service")
 	rst = d.isProperRouter(routeURL)
@@ -110,7 +107,7 @@
 
 	regURL.SetParam(constant.APPLICATION_KEY, "")
 	regURL.SetParam(constant.INTERFACE_KEY, "")
-	d = NewBaseDirectory(&regURL)
+	d = NewBaseDirectory(regURL)
 	routeURL = getRouteURL(rule, anyURL)
 	routeURL.AddParam(constant.INTERFACE_KEY, "mock-service")
 	rst = d.isProperRouter(routeURL)
diff --git a/cluster/directory/static_directory.go b/cluster/directory/static_directory.go
index 6d75dff..d9695d4 100644
--- a/cluster/directory/static_directory.go
+++ b/cluster/directory/static_directory.go
@@ -34,13 +34,13 @@
 
 // NewStaticDirectory Create a new staticDirectory with invokers
 func NewStaticDirectory(invokers []protocol.Invoker) *staticDirectory {
-	var url common.URL
+	var url *common.URL
 
 	if len(invokers) > 0 {
 		url = invokers[0].GetUrl()
 	}
 	dir := &staticDirectory{
-		BaseDirectory: NewBaseDirectory(&url),
+		BaseDirectory: NewBaseDirectory(url),
 		invokers:      invokers,
 	}
 
@@ -72,7 +72,7 @@
 		return invokers
 	}
 	dirUrl := dir.GetUrl()
-	return routerChain.Route(&dirUrl, invocation)
+	return routerChain.Route(dirUrl, invocation)
 }
 
 // Destroy Destroy
@@ -91,7 +91,7 @@
 		return perrors.Errorf("invokers == null")
 	}
 	url := invokers[0].GetUrl()
-	routerChain, e := chain.NewRouterChain(&url)
+	routerChain, e := chain.NewRouterChain(url)
 	if e != nil {
 		return e
 	}
diff --git a/cluster/loadbalance/consistent_hash_test.go b/cluster/loadbalance/consistent_hash_test.go
index 9f22d39..0fbb740 100644
--- a/cluster/loadbalance/consistent_hash_test.go
+++ b/cluster/loadbalance/consistent_hash_test.go
@@ -84,9 +84,9 @@
 
 type consistentHashLoadBalanceSuite struct {
 	suite.Suite
-	url1     common.URL
-	url2     common.URL
-	url3     common.URL
+	url1     *common.URL
+	url2     *common.URL
+	url3     *common.URL
 	invokers []protocol.Invoker
 	invoker1 protocol.Invoker
 	invoker2 protocol.Invoker
diff --git a/cluster/router/chain/chain.go b/cluster/router/chain/chain.go
index 252093a..612c12d 100644
--- a/cluster/router/chain/chain.go
+++ b/cluster/router/chain/chain.go
@@ -55,7 +55,7 @@
 
 	mutex sync.RWMutex
 
-	url common.URL
+	url *common.URL
 
 	// The times of address notification since last update for address cache
 	count int64
@@ -215,7 +215,7 @@
 }
 
 // URL Return URL in RouterChain
-func (c *RouterChain) URL() common.URL {
+func (c *RouterChain) URL() *common.URL {
 	return c.url
 }
 
@@ -248,7 +248,7 @@
 		notify:         make(chan struct{}),
 	}
 	if url != nil {
-		chain.url = *url
+		chain.url = url
 	}
 
 	go chain.loop()
diff --git a/cluster/router/chain/chain_test.go b/cluster/router/chain/chain_test.go
index 5a9f2d1..b21990b 100644
--- a/cluster/router/chain/chain_test.go
+++ b/cluster/router/chain/chain_test.go
@@ -65,7 +65,6 @@
 	assert.NoError(t, err)
 	err = z.Create(path)
 	assert.NoError(t, err)
-
 	testyml := `scope: application
 key: mock-app
 enabled: true
@@ -81,7 +80,7 @@
 	defer z.Close()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	assert.Nil(t, err)
@@ -133,7 +132,7 @@
 	defer z.Close()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	chain, err := NewRouterChain(getConditionRouteUrl(applicationKey))
@@ -159,7 +158,7 @@
 	defer z.Close()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	chain, err := NewRouterChain(getConditionRouteUrl(applicationKey))
@@ -169,7 +168,7 @@
 	url := getConditionRouteUrl(applicationKey)
 	assert.NotNil(t, url)
 
-	invokers := []protocol.Invoker{}
+	var invokers []protocol.Invoker
 	dubboURL, _ := common.NewURL(fmt.Sprintf(dubboForamt, test1234IP, port20000))
 	invokers = append(invokers, protocol.NewBaseInvoker(dubboURL))
 	chain.SetInvokers(invokers)
@@ -177,7 +176,7 @@
 
 	targetURL, _ := common.NewURL(fmt.Sprintf(consumerFormat, test1111IP))
 	inv := &invocation.RPCInvocation{}
-	finalInvokers := chain.Route(&targetURL, inv)
+	finalInvokers := chain.Route(targetURL, inv)
 
 	assert.Equal(t, 1, len(finalInvokers))
 }
@@ -203,14 +202,14 @@
 	defer z.Close()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	chain, err := NewRouterChain(getConditionRouteUrl(applicationKey))
 	assert.Nil(t, err)
 	assert.Equal(t, 2, len(chain.routers))
 
-	invokers := []protocol.Invoker{}
+	var invokers []protocol.Invoker
 	dubboURL, _ := common.NewURL(fmt.Sprintf(dubboForamt, test1234IP, port20000))
 	invokers = append(invokers, protocol.NewBaseInvoker(dubboURL))
 	chain.SetInvokers(invokers)
@@ -218,7 +217,7 @@
 
 	targetURL, _ := common.NewURL(fmt.Sprintf(consumerFormat, test1111IP))
 	inv := &invocation.RPCInvocation{}
-	finalInvokers := chain.Route(&targetURL, inv)
+	finalInvokers := chain.Route(targetURL, inv)
 
 	assert.Equal(t, 0, len(finalInvokers))
 }
@@ -229,7 +228,7 @@
 	defer z.Close()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	chain, err := NewRouterChain(getConditionNoRouteUrl(applicationKey))
@@ -239,7 +238,7 @@
 	url := getConditionRouteUrl(applicationKey)
 	assert.NotNil(t, url)
 
-	invokers := []protocol.Invoker{}
+	var invokers []protocol.Invoker
 	dubboURL, _ := common.NewURL(fmt.Sprintf(dubboForamt, test1234IP, port20000))
 	invokers = append(invokers, protocol.NewBaseInvoker(dubboURL))
 	chain.SetInvokers(invokers)
@@ -247,7 +246,7 @@
 
 	targetURL, _ := common.NewURL(fmt.Sprintf(consumerFormat, test1111IP))
 	inv := &invocation.RPCInvocation{}
-	finalInvokers := chain.Route(&targetURL, inv)
+	finalInvokers := chain.Route(targetURL, inv)
 
 	assert.Equal(t, 0, len(finalInvokers))
 }
@@ -258,7 +257,7 @@
 	url.AddParam(forceField, forceValue)
 	rule := base64.URLEncoding.EncodeToString([]byte("host = 1.1.1.1 => host != 1.2.3.4"))
 	url.AddParam(constant.RULE_KEY, rule)
-	return &url
+	return url
 }
 
 func getConditionRouteUrl(applicationKey string) *common.URL {
@@ -267,12 +266,12 @@
 	url.AddParam(forceField, forceValue)
 	rule := base64.URLEncoding.EncodeToString([]byte("host = 1.1.1.1 => host = 1.2.3.4"))
 	url.AddParam(constant.RULE_KEY, rule)
-	return &url
+	return url
 }
 
 func getRouteUrl(applicationKey string) *common.URL {
 	url, _ := common.NewURL(fmt.Sprintf(anyUrlFormat, test0000IP))
 	url.AddParam(applicationField, applicationKey)
 	url.AddParam(forceField, forceValue)
-	return &url
+	return url
 }
diff --git a/cluster/router/condition/app_router_test.go b/cluster/router/condition/app_router_test.go
index cce96b1..879abc5 100644
--- a/cluster/router/condition/app_router_test.go
+++ b/cluster/router/condition/app_router_test.go
@@ -71,7 +71,7 @@
 	defer z.Close()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, routerLocalIP, ts.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	assert.Nil(t, err)
@@ -119,7 +119,7 @@
 	defer z.Close()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, routerLocalIP, ts.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	assert.Nil(t, err)
@@ -158,7 +158,7 @@
 	defer z.Close()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, routerLocalIP, ts.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	assert.Nil(t, err)
@@ -194,5 +194,5 @@
 	url, _ := common.NewURL(fmt.Sprintf(conditionFormat, constant.ANYHOST_VALUE))
 	url.AddParam("application", applicationKey)
 	url.AddParam("force", "true")
-	return &url
+	return url
 }
diff --git a/cluster/router/condition/factory_test.go b/cluster/router/condition/factory_test.go
index 8fdfae7..c916588 100644
--- a/cluster/router/condition/factory_test.go
+++ b/cluster/router/condition/factory_test.go
@@ -52,13 +52,13 @@
 )
 
 type MockInvoker struct {
-	url          common.URL
+	url          *common.URL
 	available    bool
 	destroyed    bool
 	successCount int
 }
 
-func NewMockInvoker(url common.URL, successCount int) *MockInvoker {
+func NewMockInvoker(url *common.URL, successCount int) *MockInvoker {
 	return &MockInvoker{
 		url:          url,
 		available:    true,
@@ -67,7 +67,7 @@
 	}
 }
 
-func (bi *MockInvoker) GetUrl() common.URL {
+func (bi *MockInvoker) GetUrl() *common.URL {
 	return bi.url
 }
 
@@ -75,20 +75,20 @@
 	url, _ := common.NewURL(fmt.Sprintf(factoryUrlFormat, constant.ANYHOST_VALUE))
 	url.AddParam("rule", rule)
 	url.AddParam("force", "true")
-	return &url
+	return url
 }
 
 func getRouteUrlWithForce(rule, force string) *common.URL {
 	url, _ := common.NewURL(fmt.Sprintf(factoryUrlFormat, constant.ANYHOST_VALUE))
 	url.AddParam("rule", rule)
 	url.AddParam("force", force)
-	return &url
+	return url
 }
 
 func getRouteUrlWithNoForce(rule string) *common.URL {
 	url, _ := common.NewURL(fmt.Sprintf(factoryUrlFormat, constant.ANYHOST_VALUE))
 	url.AddParam("rule", rule)
-	return &url
+	return url
 }
 
 func (bi *MockInvoker) IsAvailable() bool {
@@ -134,31 +134,31 @@
 	rule := base64.URLEncoding.EncodeToString([]byte("=> host = 1.2.3.4"))
 	router, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
 	cUrl, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, factory1111Ip))
-	matchWhen := router.(*ConditionRouter).MatchWhen(&cUrl, inv)
+	matchWhen := router.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen)
 	rule1 := base64.URLEncoding.EncodeToString([]byte("host = 2.2.2.2,1.1.1.1,3.3.3.3 => host = 1.2.3.4"))
 	router1, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule1))
-	matchWhen1 := router1.(*ConditionRouter).MatchWhen(&cUrl, inv)
+	matchWhen1 := router1.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen1)
 	rule2 := base64.URLEncoding.EncodeToString([]byte("host = 2.2.2.2,1.1.1.1,3.3.3.3 & host !=1.1.1.1 => host = 1.2.3.4"))
 	router2, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule2))
-	matchWhen2 := router2.(*ConditionRouter).MatchWhen(&cUrl, inv)
+	matchWhen2 := router2.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, false, matchWhen2)
 	rule3 := base64.URLEncoding.EncodeToString([]byte("host !=4.4.4.4 & host = 2.2.2.2,1.1.1.1,3.3.3.3 => host = 1.2.3.4"))
 	router3, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule3))
-	matchWhen3 := router3.(*ConditionRouter).MatchWhen(&cUrl, inv)
+	matchWhen3 := router3.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen3)
 	rule4 := base64.URLEncoding.EncodeToString([]byte("host !=4.4.4.* & host = 2.2.2.2,1.1.1.1,3.3.3.3 => host = 1.2.3.4"))
 	router4, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule4))
-	matchWhen4 := router4.(*ConditionRouter).MatchWhen(&cUrl, inv)
+	matchWhen4 := router4.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen4)
 	rule5 := base64.URLEncoding.EncodeToString([]byte("host = 2.2.2.2,1.1.1.*,3.3.3.3 & host != 1.1.1.1 => host = 1.2.3.4"))
 	router5, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule5))
-	matchWhen5 := router5.(*ConditionRouter).MatchWhen(&cUrl, inv)
+	matchWhen5 := router5.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, false, matchWhen5)
 	rule6 := base64.URLEncoding.EncodeToString([]byte("host = 2.2.2.2,1.1.1.*,3.3.3.3 & host != 1.1.1.2 => host = 1.2.3.4"))
 	router6, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule6))
-	matchWhen6 := router6.(*ConditionRouter).MatchWhen(&cUrl, inv)
+	matchWhen6 := router6.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen6)
 }
 
@@ -182,12 +182,12 @@
 	router5, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule5))
 	router6, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule6))
 	cUrl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	ret1 := router1.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &cUrl, &invocation.RPCInvocation{})
-	ret2 := router2.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &cUrl, &invocation.RPCInvocation{})
-	ret3 := router3.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &cUrl, &invocation.RPCInvocation{})
-	ret4 := router4.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &cUrl, &invocation.RPCInvocation{})
-	ret5 := router5.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &cUrl, &invocation.RPCInvocation{})
-	ret6 := router6.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &cUrl, &invocation.RPCInvocation{})
+	ret1 := router1.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), cUrl, &invocation.RPCInvocation{})
+	ret2 := router2.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), cUrl, &invocation.RPCInvocation{})
+	ret3 := router3.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), cUrl, &invocation.RPCInvocation{})
+	ret4 := router4.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), cUrl, &invocation.RPCInvocation{})
+	ret5 := router5.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), cUrl, &invocation.RPCInvocation{})
+	ret6 := router6.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), cUrl, &invocation.RPCInvocation{})
 	assert.Equal(t, 1, len(ret1.ToArray()))
 	assert.Equal(t, 0, len(ret2.ToArray()))
 	assert.Equal(t, 0, len(ret3.ToArray()))
@@ -202,20 +202,20 @@
 	rule := base64.URLEncoding.EncodeToString([]byte("host !=4.4.4.* & host = 2.2.2.2,1.1.1.1,3.3.3.3 => host = 1.2.3.4"))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
 	url, _ := common.NewURL("consumer://1.1.1.1/com.foo.BarService?methods=setFoo,getFoo,findFoo")
-	matchWhen := r.(*ConditionRouter).MatchWhen(&url, inv)
+	matchWhen := r.(*ConditionRouter).MatchWhen(url, inv)
 	assert.Equal(t, true, matchWhen)
 	url1, _ := common.NewURL(fmt.Sprintf(factoryConsumerMethodFormat, factory1111Ip))
-	matchWhen = r.(*ConditionRouter).MatchWhen(&url1, inv)
+	matchWhen = r.(*ConditionRouter).MatchWhen(url1, inv)
 	assert.Equal(t, true, matchWhen)
 	url2, _ := common.NewURL(fmt.Sprintf(factoryConsumerMethodFormat, factory1111Ip))
 	rule2 := base64.URLEncoding.EncodeToString([]byte("methods=getFoo & host!=1.1.1.1 => host = 1.2.3.4"))
 	router2, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule2))
-	matchWhen = router2.(*ConditionRouter).MatchWhen(&url2, inv)
+	matchWhen = router2.(*ConditionRouter).MatchWhen(url2, inv)
 	assert.Equal(t, false, matchWhen)
 	url3, _ := common.NewURL(fmt.Sprintf(factoryConsumerMethodFormat, factory1111Ip))
 	rule3 := base64.URLEncoding.EncodeToString([]byte("methods=getFoo & host=1.1.1.1 => host = 1.2.3.4"))
 	router3, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule3))
-	matchWhen = router3.(*ConditionRouter).MatchWhen(&url3, inv)
+	matchWhen = router3.(*ConditionRouter).MatchWhen(url3, inv)
 	assert.Equal(t, true, matchWhen)
 
 }
@@ -228,7 +228,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => false"))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
-	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 0, len(ret.ToArray()))
 }
 
@@ -240,7 +240,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => "))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
-	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 0, len(ret.ToArray()))
 }
 
@@ -256,7 +256,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " host = " + localIP))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
-	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, len(invokers), len(ret.ToArray()))
 }
 
@@ -273,7 +273,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " host = " + localIP))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
-	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 2, len(ret.ToArray()))
 	assert.Equal(t, invoker2, invokers[ret.ToArray()[0]])
 	assert.Equal(t, invoker3, invokers[ret.ToArray()[1]])
@@ -292,7 +292,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte(" => " + " host = " + localIP))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
-	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 2, len(ret.ToArray()))
 	assert.Equal(t, invoker2, invokers[ret.ToArray()[0]])
 	assert.Equal(t, invoker3, invokers[ret.ToArray()[1]])
@@ -311,7 +311,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte("true => " + " host = " + localIP))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
-	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 2, len(ret.ToArray()))
 	assert.Equal(t, invoker2, invokers[ret.ToArray()[0]])
 	assert.Equal(t, invoker3, invokers[ret.ToArray()[1]])
@@ -330,7 +330,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " host = $host"))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
-	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 2, len(ret.ToArray()))
 	assert.Equal(t, invoker2, invokers[ret.ToArray()[0]])
 	assert.Equal(t, invoker3, invokers[ret.ToArray()[1]])
@@ -349,7 +349,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte(fmt.Sprintf(factoryHostIp1234Format, localIP)))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrlWithNoForce(rule))
-	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, len(invokers), len(ret.ToArray()))
 }
 
@@ -366,7 +366,7 @@
 	rule := base64.URLEncoding.EncodeToString([]byte(fmt.Sprintf(factoryHostIp1234Format, localIP)))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrlWithForce(rule, "true"))
-	fileredInvokers := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), &curl, inv)
+	fileredInvokers := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 0, len(fileredInvokers.ToArray()))
 }
 
diff --git a/cluster/router/condition/file.go b/cluster/router/condition/file.go
index 996db74..a97d9cb 100644
--- a/cluster/router/condition/file.go
+++ b/cluster/router/condition/file.go
@@ -39,7 +39,7 @@
 type FileConditionRouter struct {
 	listenableRouter
 	parseOnce sync.Once
-	url       common.URL
+	url       *common.URL
 }
 
 // NewFileConditionRouter Create file condition router instance with content ( from config file)
@@ -60,11 +60,11 @@
 }
 
 // URL Return URL in file condition router n
-func (f *FileConditionRouter) URL() common.URL {
+func (f *FileConditionRouter) URL() *common.URL {
 	f.parseOnce.Do(func() {
 		routerRule := f.routerRule
 		rule := parseCondition(routerRule.Conditions)
-		f.url = *common.NewURLWithOptions(
+		f.url = common.NewURLWithOptions(
 			common.WithProtocol(constant.CONDITION_ROUTE_PROTOCOL),
 			common.WithIp(constant.ANYHOST_VALUE),
 			common.WithParams(url.Values{}),
diff --git a/cluster/router/condition/listenable_router.go b/cluster/router/condition/listenable_router.go
index 19e3a00..0b47310 100644
--- a/cluster/router/condition/listenable_router.go
+++ b/cluster/router/condition/listenable_router.go
@@ -148,6 +148,6 @@
 }
 
 // URL Return URL in listenable router
-func (l *listenableRouter) URL() common.URL {
-	return *l.url
+func (l *listenableRouter) URL() *common.URL {
+	return l.url
 }
diff --git a/cluster/router/condition/router.go b/cluster/router/condition/router.go
index 48f2aae..2fc3307 100644
--- a/cluster/router/condition/router.go
+++ b/cluster/router/condition/router.go
@@ -138,8 +138,8 @@
 }
 
 // URL Return URL in condition router
-func (c *ConditionRouter) URL() common.URL {
-	return *c.url
+func (c *ConditionRouter) URL() *common.URL {
+	return c.url
 }
 
 // Enabled Return is condition router is enabled
@@ -173,7 +173,7 @@
 		index := iter.Next()
 		invoker := cache.GetInvokers()[index]
 		invokerUrl := invoker.GetUrl()
-		isMatchThen := c.MatchThen(&invokerUrl, url)
+		isMatchThen := c.MatchThen(invokerUrl, url)
 		if isMatchThen {
 			result.Add(index)
 		}
diff --git a/cluster/router/condition/router_rule_test.go b/cluster/router/condition/router_rule_test.go
index 369b14f..192e528 100644
--- a/cluster/router/condition/router_rule_test.go
+++ b/cluster/router/condition/router_rule_test.go
@@ -80,5 +80,5 @@
 
 func TestIsMatchGlobPattern(t *testing.T) {
 	url, _ := common.NewURL("dubbo://localhost:8080/Foo?key=v*e")
-	assert.Equal(t, true, isMatchGlobalPattern("$key", "value", &url))
+	assert.Equal(t, true, isMatchGlobalPattern("$key", "value", url))
 }
diff --git a/cluster/router/condition/router_test.go b/cluster/router/condition/router_test.go
index c27a1d9..3d33ca2 100644
--- a/cluster/router/condition/router_test.go
+++ b/cluster/router/condition/router_test.go
@@ -59,7 +59,7 @@
 
 func TestNewConditionRouter(t *testing.T) {
 	url, _ := common.NewURL(`condition://0.0.0.0:?application=mock-app&category=routers&force=true&priority=1&router=condition&rule=YSAmIGMgPT4gYiAmIGQ%3D`)
-	router, err := NewConditionRouter(&url)
+	router, err := NewConditionRouter(url)
 	assert.Nil(t, err)
 	assert.Equal(t, true, router.Enabled())
 	assert.Equal(t, true, router.Force)
@@ -73,16 +73,16 @@
 	assert.Error(t, err)
 
 	url, _ = common.NewURL(`condition://0.0.0.0:?application=mock-app&category=routers&force=true&priority=1&router=condition&rule=YSAmT4gYiAmIGQ%3D`)
-	router, err = NewConditionRouter(&url)
+	router, err = NewConditionRouter(url)
 	assert.Error(t, err)
 
 	url, _ = common.NewURL(`condition://0.0.0.0:?application=mock-app&category=routers&force=true&router=condition&rule=YSAmIGMgPT4gYiAmIGQ%3D`)
-	router, err = NewConditionRouter(&url)
+	router, err = NewConditionRouter(url)
 	assert.Nil(t, err)
 	assert.Equal(t, int64(150), router.Priority())
 
 	url, _ = common.NewURL(`condition://0.0.0.0:?category=routers&force=true&interface=mock-service&router=condition&rule=YSAmIGMgPT4gYiAmIGQ%3D`)
-	router, err = NewConditionRouter(&url)
+	router, err = NewConditionRouter(url)
 	assert.Nil(t, err)
 	assert.Equal(t, int64(140), router.Priority())
 }
diff --git a/cluster/router/healthcheck/default_health_check_test.go b/cluster/router/healthcheck/default_health_check_test.go
index 5d35ae8..39827c5 100644
--- a/cluster/router/healthcheck/default_health_check_test.go
+++ b/cluster/router/healthcheck/default_health_check_test.go
@@ -43,7 +43,7 @@
 func TestDefaultHealthCheckerIsHealthy(t *testing.T) {
 	defer protocol.CleanAllStatus()
 	url, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1010IP))
-	hc := NewDefaultHealthChecker(&url).(*DefaultHealthChecker)
+	hc := NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	invoker := NewMockInvoker(url)
 	healthy := hc.IsHealthy(invoker)
 	assert.True(t, healthy)
@@ -54,7 +54,7 @@
 	for i := 0; i < 11; i++ {
 		request(url, healthCheckMethodTest, 0, true, false)
 	}
-	hc = NewDefaultHealthChecker(&url).(*DefaultHealthChecker)
+	hc = NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	healthy = hc.IsHealthy(invoker)
 	// the outgoing request is more than OUTSTANDING_REQUEST_COUNT_LIMIT, go to unhealthy
 	assert.False(t, hc.IsHealthy(invoker))
@@ -65,7 +65,7 @@
 	}
 	url.SetParam(constant.SUCCESSIVE_FAILED_REQUEST_THRESHOLD_KEY, "10")
 	url.SetParam(constant.OUTSTANDING_REQUEST_COUNT_LIMIT_KEY, "1000")
-	hc = NewDefaultHealthChecker(&url).(*DefaultHealthChecker)
+	hc = NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	healthy = hc.IsHealthy(invoker)
 	assert.False(t, hc.IsHealthy(invoker))
 
@@ -78,7 +78,7 @@
 func TestDefaultHealthCheckerGetCircuitBreakerSleepWindowTime(t *testing.T) {
 	defer protocol.CleanAllStatus()
 	url, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1010IP))
-	defaultHc := NewDefaultHealthChecker(&url).(*DefaultHealthChecker)
+	defaultHc := NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	// Increase the number of failed requests
 	for i := 0; i < 100; i++ {
 		request(url, healthCheckMethodTest, 1, false, false)
@@ -88,7 +88,7 @@
 
 	// Adjust the threshold size to 1000
 	url.SetParam(constant.SUCCESSIVE_FAILED_REQUEST_THRESHOLD_KEY, "1000")
-	sleepWindowTime = NewDefaultHealthChecker(&url).(*DefaultHealthChecker).getCircuitBreakerSleepWindowTime(protocol.GetURLStatus(url))
+	sleepWindowTime = NewDefaultHealthChecker(url).(*DefaultHealthChecker).getCircuitBreakerSleepWindowTime(protocol.GetURLStatus(url))
 	assert.True(t, sleepWindowTime == 0)
 
 	url1, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1011IP))
@@ -107,7 +107,7 @@
 func TestDefaultHealthCheckerGetCircuitBreakerTimeout(t *testing.T) {
 	defer protocol.CleanAllStatus()
 	url, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1010IP))
-	defaultHc := NewDefaultHealthChecker(&url).(*DefaultHealthChecker)
+	defaultHc := NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	timeout := defaultHc.getCircuitBreakerTimeout(protocol.GetURLStatus(url))
 	assert.True(t, timeout == 0)
 	url1, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1011IP))
@@ -126,7 +126,7 @@
 func TestDefaultHealthCheckerIsCircuitBreakerTripped(t *testing.T) {
 	defer protocol.CleanAllStatus()
 	url, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1010IP))
-	defaultHc := NewDefaultHealthChecker(&url).(*DefaultHealthChecker)
+	defaultHc := NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	status := protocol.GetURLStatus(url)
 	tripped := defaultHc.isCircuitBreakerTripped(status)
 	assert.False(t, tripped)
@@ -142,7 +142,7 @@
 func TestNewDefaultHealthChecker(t *testing.T) {
 	defer protocol.CleanAllStatus()
 	url, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1010IP))
-	defaultHc := NewDefaultHealthChecker(&url).(*DefaultHealthChecker)
+	defaultHc := NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	assert.NotNil(t, defaultHc)
 	assert.Equal(t, defaultHc.outStandingRequestConutLimit, int32(math.MaxInt32))
 	assert.Equal(t, defaultHc.requestSuccessiveFailureThreshold, int32(constant.DEFAULT_SUCCESSIVE_FAILED_REQUEST_MAX_DIFF))
@@ -150,13 +150,13 @@
 	url1, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1010IP))
 	url1.SetParam(constant.OUTSTANDING_REQUEST_COUNT_LIMIT_KEY, "10")
 	url1.SetParam(constant.SUCCESSIVE_FAILED_REQUEST_THRESHOLD_KEY, "10")
-	nondefaultHc := NewDefaultHealthChecker(&url1).(*DefaultHealthChecker)
+	nondefaultHc := NewDefaultHealthChecker(url1).(*DefaultHealthChecker)
 	assert.NotNil(t, nondefaultHc)
 	assert.Equal(t, nondefaultHc.outStandingRequestConutLimit, int32(10))
 	assert.Equal(t, nondefaultHc.requestSuccessiveFailureThreshold, int32(10))
 }
 
-func request(url common.URL, method string, elapsed int64, active, succeeded bool) {
+func request(url *common.URL, method string, elapsed int64, active, succeeded bool) {
 	protocol.BeginCount(url, method)
 	if !active {
 		protocol.EndCount(url, method, elapsed, succeeded)
diff --git a/cluster/router/healthcheck/factory_test.go b/cluster/router/healthcheck/factory_test.go
index e80fd4c..1e73683 100644
--- a/cluster/router/healthcheck/factory_test.go
+++ b/cluster/router/healthcheck/factory_test.go
@@ -33,18 +33,18 @@
 
 // nolint
 type MockInvoker struct {
-	url common.URL
+	url *common.URL
 }
 
 // nolint
-func NewMockInvoker(url common.URL) *MockInvoker {
+func NewMockInvoker(url *common.URL) *MockInvoker {
 	return &MockInvoker{
 		url: url,
 	}
 }
 
 // nolint
-func (bi *MockInvoker) GetUrl() common.URL {
+func (bi *MockInvoker) GetUrl() *common.URL {
 	return bi.url
 }
 
diff --git a/cluster/router/healthcheck/health_check_route.go b/cluster/router/healthcheck/health_check_route.go
index 75ad189..1a878af 100644
--- a/cluster/router/healthcheck/health_check_route.go
+++ b/cluster/router/healthcheck/health_check_route.go
@@ -106,8 +106,8 @@
 }
 
 // URL Return URL in router
-func (r *HealthCheckRouter) URL() common.URL {
-	return *r.url
+func (r *HealthCheckRouter) URL() *common.URL {
+	return r.url
 }
 
 // HealthyChecker returns the HealthChecker bound to this HealthCheckRouter
diff --git a/cluster/router/healthcheck/health_check_route_test.go b/cluster/router/healthcheck/health_check_route_test.go
index c321b56..0730f10 100644
--- a/cluster/router/healthcheck/health_check_route_test.go
+++ b/cluster/router/healthcheck/health_check_route_test.go
@@ -54,7 +54,7 @@
 	url1, _ := common.NewURL(fmt.Sprintf(healthCheckRouteUrlFormat, healthCheckRoute1010IP))
 	url2, _ := common.NewURL(fmt.Sprintf(healthCheckRouteUrlFormat, healthCheckRoute1011IP))
 	url3, _ := common.NewURL(fmt.Sprintf(healthCheckRouteUrlFormat, healthCheckRoute1012IP))
-	hcr, _ := NewHealthCheckRouter(&consumerURL)
+	hcr, _ := NewHealthCheckRouter(consumerURL)
 
 	var invokers []protocol.Invoker
 	invoker1 := NewMockInvoker(url1)
@@ -62,14 +62,14 @@
 	invoker3 := NewMockInvoker(url3)
 	invokers = append(invokers, invoker1, invoker2, invoker3)
 	inv := invocation.NewRPCInvocation(healthCheckRouteMethodNameTest, nil, nil)
-	res := hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), &consumerURL, inv)
+	res := hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), consumerURL, inv)
 	// now all invokers are healthy
 	assert.True(t, len(res.ToArray()) == len(invokers))
 
 	for i := 0; i < 10; i++ {
 		request(url1, healthCheckRouteMethodNameTest, 0, false, false)
 	}
-	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), &consumerURL, inv)
+	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), consumerURL, inv)
 	// invokers1  is unhealthy now
 	assert.True(t, len(res.ToArray()) == 2 && !res.Contains(0))
 
@@ -78,7 +78,7 @@
 		request(url2, healthCheckRouteMethodNameTest, 0, false, false)
 	}
 
-	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), &consumerURL, inv)
+	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), consumerURL, inv)
 	// only invokers3  is healthy now
 	assert.True(t, len(res.ToArray()) == 1 && !res.Contains(0) && !res.Contains(1))
 
@@ -88,24 +88,24 @@
 		request(url3, healthCheckRouteMethodNameTest, 0, false, false)
 	}
 
-	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), &consumerURL, inv)
+	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), consumerURL, inv)
 	// now all invokers are unhealthy, so downgraded to all
 	assert.True(t, len(res.ToArray()) == 3)
 
 	// reset the invoker1 successive failed count, so invoker1 go to healthy
 	request(url1, healthCheckRouteMethodNameTest, 0, false, true)
-	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), &consumerURL, inv)
+	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), consumerURL, inv)
 	assert.True(t, res.Contains(0))
 
 	for i := 0; i < 6; i++ {
 		request(url1, healthCheckRouteMethodNameTest, 0, false, false)
 	}
 	// now all invokers are unhealthy, so downgraded to all again
-	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), &consumerURL, inv)
+	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), consumerURL, inv)
 	assert.True(t, len(res.ToArray()) == 3)
 	time.Sleep(time.Second * 2)
 	// invoker1 go to healthy again after 2s
-	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), &consumerURL, inv)
+	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*HealthCheckRouter), invokers), consumerURL, inv)
 	assert.True(t, res.Contains(0))
 
 }
@@ -113,12 +113,12 @@
 func TestNewHealthCheckRouter(t *testing.T) {
 	defer protocol.CleanAllStatus()
 	url, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1010IP))
-	hcr, _ := NewHealthCheckRouter(&url)
+	hcr, _ := NewHealthCheckRouter(url)
 	h := hcr.(*HealthCheckRouter)
 	assert.Nil(t, h.checker)
 
 	url.SetParam(HEALTH_ROUTE_ENABLED_KEY, "true")
-	hcr, _ = NewHealthCheckRouter(&url)
+	hcr, _ = NewHealthCheckRouter(url)
 	h = hcr.(*HealthCheckRouter)
 	assert.NotNil(t, h.checker)
 
@@ -130,7 +130,7 @@
 	url.SetParam(constant.CIRCUIT_TRIPPED_TIMEOUT_FACTOR_KEY, "500")
 	url.SetParam(constant.SUCCESSIVE_FAILED_REQUEST_THRESHOLD_KEY, "10")
 	url.SetParam(constant.OUTSTANDING_REQUEST_COUNT_LIMIT_KEY, "1000")
-	hcr, _ = NewHealthCheckRouter(&url)
+	hcr, _ = NewHealthCheckRouter(url)
 	h = hcr.(*HealthCheckRouter)
 	dhc = h.checker.(*DefaultHealthChecker)
 	assert.Equal(t, dhc.outStandingRequestConutLimit, int32(1000))
diff --git a/cluster/router/router.go b/cluster/router/router.go
index ddca42a..8a19dcf 100644
--- a/cluster/router/router.go
+++ b/cluster/router/router.go
@@ -45,7 +45,7 @@
 	Route(*roaring.Bitmap, Cache, *common.URL, protocol.Invocation) *roaring.Bitmap
 
 	// URL Return URL in router
-	URL() common.URL
+	URL() *common.URL
 }
 
 // Router
diff --git a/cluster/router/tag/factory_test.go b/cluster/router/tag/factory_test.go
index ee19582..b350bb2 100644
--- a/cluster/router/tag/factory_test.go
+++ b/cluster/router/tag/factory_test.go
@@ -39,7 +39,7 @@
 	u1, err := common.NewURL(fmt.Sprintf(factoryFormat, factoryLocalIP))
 	assert.Nil(t, err)
 	factory := NewTagRouterFactory()
-	tagRouter, e := factory.NewPriorityRouter(&u1)
+	tagRouter, e := factory.NewPriorityRouter(u1)
 	assert.Nil(t, e)
 	assert.NotNil(t, tagRouter)
 }
diff --git a/cluster/router/tag/file.go b/cluster/router/tag/file.go
index 0ee4311..94daf15 100644
--- a/cluster/router/tag/file.go
+++ b/cluster/router/tag/file.go
@@ -52,13 +52,12 @@
 		return nil, perrors.Errorf("yaml.Unmarshal() failed , error:%v", perrors.WithStack(err))
 	}
 	fileRouter.routerRule = rule
-	url := fileRouter.URL()
-	fileRouter.router, err = NewTagRouter(&url)
+	fileRouter.router, err = NewTagRouter(fileRouter.URL())
 	return fileRouter, err
 }
 
 // URL Return URL in file tag router n
-func (f *FileTagRouter) URL() common.URL {
+func (f *FileTagRouter) URL() *common.URL {
 	f.parseOnce.Do(func() {
 		routerRule := f.routerRule
 		f.url = common.NewURLWithOptions(
@@ -68,7 +67,7 @@
 			common.WithParamsValue(constant.RouterPriority, strconv.Itoa(routerRule.Priority)),
 			common.WithParamsValue(constant.ROUTER_KEY, constant.TAG_ROUTE_PROTOCOL))
 	})
-	return *f.url
+	return f.url
 }
 
 // Priority Return Priority in listenable router
diff --git a/cluster/router/tag/tag_router.go b/cluster/router/tag/tag_router.go
index 9f92e83..c7f5304 100644
--- a/cluster/router/tag/tag_router.go
+++ b/cluster/router/tag/tag_router.go
@@ -194,8 +194,8 @@
 }
 
 // URL gets the url of tagRouter
-func (c *tagRouter) URL() common.URL {
-	return *c.url
+func (c *tagRouter) URL() *common.URL {
+	return c.url
 }
 
 // Priority gets the priority of tagRouter
diff --git a/cluster/router/tag/tag_router_test.go b/cluster/router/tag/tag_router_test.go
index 92611ac..3f7b979 100644
--- a/cluster/router/tag/tag_router_test.go
+++ b/cluster/router/tag/tag_router_test.go
@@ -79,13 +79,13 @@
 
 // MockInvoker is only mock the Invoker to support test tagRouter
 type MockInvoker struct {
-	url          common.URL
+	url          *common.URL
 	available    bool
 	destroyed    bool
 	successCount int
 }
 
-func NewMockInvoker(url common.URL) *MockInvoker {
+func NewMockInvoker(url *common.URL) *MockInvoker {
 	return &MockInvoker{
 		url:          url,
 		available:    true,
@@ -94,7 +94,7 @@
 	}
 }
 
-func (bi *MockInvoker) GetUrl() common.URL {
+func (bi *MockInvoker) GetUrl() *common.URL {
 	return bi.url
 }
 
@@ -121,7 +121,7 @@
 func TestTagRouterPriority(t *testing.T) {
 	u1, err := common.NewURL(tagRouterTestUserConsumerTag)
 	assert.Nil(t, err)
-	tagRouter, e := NewTagRouter(&u1)
+	tagRouter, e := NewTagRouter(u1)
 	assert.Nil(t, e)
 	p := tagRouter.Priority()
 	assert.Equal(t, int64(0), p)
@@ -130,7 +130,7 @@
 func TestTagRouterRouteForce(t *testing.T) {
 	u1, e1 := common.NewURL(tagRouterTestUserConsumerTag)
 	assert.Nil(t, e1)
-	tagRouter, e := NewTagRouter(&u1)
+	tagRouter, e := NewTagRouter(u1)
 	assert.Nil(t, e)
 
 	u2, e2 := common.NewURL(tagRouterTestHangZhouUrl)
@@ -146,23 +146,23 @@
 	invokers = append(invokers, inv2, inv3, inv4)
 	inv := &invocation.RPCInvocation{}
 	inv.SetAttachments(tagRouterTestDubboTag, tagRouterTestHangZhou)
-	invRst1 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), &u1, inv)
+	invRst1 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), u1, inv)
 	assert.Equal(t, 1, len(invRst1.ToArray()))
 	assert.Equal(t, tagRouterTestHangZhou, invokers[invRst1.ToArray()[0]].GetUrl().GetParam(tagRouterTestDubboTag, ""))
 
 	inv.SetAttachments(tagRouterTestDubboTag, tagRouterTestGuangZhou)
-	invRst2 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), &u1, inv)
+	invRst2 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), u1, inv)
 	assert.Equal(t, 0, len(invRst2.ToArray()))
 	inv.SetAttachments(tagRouterTestDubboForceTag, tagRouterTestFalse)
 	inv.SetAttachments(tagRouterTestDubboTag, tagRouterTestGuangZhou)
-	invRst3 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), &u1, inv)
+	invRst3 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), u1, inv)
 	assert.Equal(t, 3, len(invRst3.ToArray()))
 }
 
 func TestTagRouterRouteNoForce(t *testing.T) {
 	u1, e1 := common.NewURL(tagRouterTestUserConsumer)
 	assert.Nil(t, e1)
-	tagRouter, e := NewTagRouter(&u1)
+	tagRouter, e := NewTagRouter(u1)
 	assert.Nil(t, e)
 
 	u2, e2 := common.NewURL(tagRouterTestHangZhouUrl)
@@ -178,16 +178,16 @@
 	invokers = append(invokers, inv2, inv3, inv4)
 	inv := &invocation.RPCInvocation{}
 	inv.SetAttachments(tagRouterTestDubboTag, tagRouterTestHangZhou)
-	invRst := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), &u1, inv)
+	invRst := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), u1, inv)
 	assert.Equal(t, 1, len(invRst.ToArray()))
 	assert.Equal(t, tagRouterTestHangZhou, invokers[invRst.ToArray()[0]].GetUrl().GetParam(tagRouterTestDubboTag, ""))
 
 	inv.SetAttachments(tagRouterTestDubboTag, tagRouterTestGuangZhou)
 	inv.SetAttachments(tagRouterTestDubboForceTag, tagRouterTestTrue)
-	invRst1 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), &u1, inv)
+	invRst1 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), u1, inv)
 	assert.Equal(t, 0, len(invRst1.ToArray()))
 	inv.SetAttachments(tagRouterTestDubboForceTag, tagRouterTestFalse)
-	invRst2 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), &u1, inv)
+	invRst2 := tagRouter.Route(utils.ToBitmap(invokers), setUpAddrCache(tagRouter, invokers), u1, inv)
 	assert.Equal(t, 3, len(invRst2.ToArray()))
 }
 
@@ -225,13 +225,13 @@
 	invokers = append(invokers, inv2, inv3, inv4, inv5)
 
 	url, _ := common.NewURL(tagRouterTestBeijingUrl)
-	tagRouter, _ := NewTagRouter(&url)
+	tagRouter, _ := NewTagRouter(url)
 
 	rb := roaring.NewBitmap()
 	rb.AddRange(0, uint64(len(invokers)))
 	cache := setUpAddrCache(tagRouter, invokers)
 	inv := &invocation.RPCInvocation{}
-	res := tagRouter.Route(rb, cache, &url, inv)
+	res := tagRouter.Route(rb, cache, url, inv)
 	// inv4 and inv5
 	assert.Equal(t, []uint32{2, 3}, res.ToArray())
 }
@@ -292,7 +292,7 @@
 	suite.NoError(err)
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, routerLocalIP, suite.testCluster.Servers[0].Port))
-	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(&zkUrl)
+	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	suite.Nil(err)
@@ -301,11 +301,11 @@
 	url, e1 := common.NewURL(tagRouterTestUserConsumerTag)
 	suite.Nil(e1)
 
-	tagRouter, err := NewTagRouter(&url)
+	tagRouter, err := NewTagRouter(url)
 	suite.Nil(err)
 	suite.NotNil(tagRouter)
 	suite.route = tagRouter
-	suite.url = &url
+	suite.url = url
 }
 
 func (suite *DynamicTagRouter) TearDownTest() {
@@ -365,7 +365,7 @@
 func TestProcess(t *testing.T) {
 	u1, err := common.NewURL(tagRouterTestUserConsumerTag)
 	assert.Nil(t, err)
-	tagRouter, e := NewTagRouter(&u1)
+	tagRouter, e := NewTagRouter(u1)
 	assert.Nil(t, e)
 	assert.NotNil(t, tagRouter)
 
diff --git a/common/node.go b/common/node.go
index 4febd78..b9c1f39 100644
--- a/common/node.go
+++ b/common/node.go
@@ -19,7 +19,7 @@
 
 // Node use for process dubbo node
 type Node interface {
-	GetUrl() URL
+	GetUrl() *URL
 	IsAvailable() bool
 	Destroy()
 }
diff --git a/common/proxy/proxy_factory.go b/common/proxy/proxy_factory.go
index 117428c..2e66c34 100644
--- a/common/proxy/proxy_factory.go
+++ b/common/proxy/proxy_factory.go
@@ -26,7 +26,7 @@
 type ProxyFactory interface {
 	GetProxy(invoker protocol.Invoker, url *common.URL) *Proxy
 	GetAsyncProxy(invoker protocol.Invoker, callBack interface{}, url *common.URL) *Proxy
-	GetInvoker(url common.URL) protocol.Invoker
+	GetInvoker(url *common.URL) protocol.Invoker
 }
 
 // Option will define a function of handling ProxyFactory
diff --git a/common/proxy/proxy_factory/default.go b/common/proxy/proxy_factory/default.go
index 752f3ea..067c077 100644
--- a/common/proxy/proxy_factory/default.go
+++ b/common/proxy/proxy_factory/default.go
@@ -72,7 +72,7 @@
 }
 
 // GetInvoker gets a invoker
-func (factory *DefaultProxyFactory) GetInvoker(url common.URL) protocol.Invoker {
+func (factory *DefaultProxyFactory) GetInvoker(url *common.URL) protocol.Invoker {
 	return &ProxyInvoker{
 		BaseInvoker: *protocol.NewBaseInvoker(url),
 	}
@@ -88,9 +88,8 @@
 	result := &protocol.RPCResult{}
 	result.SetAttachments(invocation.Attachments())
 
-	url := pi.GetUrl()
 	//get providerUrl. The origin url may be is registry URL.
-	url = *getProviderURL(&url)
+	url := getProviderURL(pi.GetUrl())
 
 	methodName := invocation.MethodName()
 	proto := url.Protocol
diff --git a/common/proxy/proxy_factory/default_test.go b/common/proxy/proxy_factory/default_test.go
index 99d5c02..4002ab9 100644
--- a/common/proxy/proxy_factory/default_test.go
+++ b/common/proxy/proxy_factory/default_test.go
@@ -34,7 +34,7 @@
 func TestGetProxy(t *testing.T) {
 	proxyFactory := NewDefaultProxyFactory()
 	url := common.NewURLWithOptions()
-	proxy := proxyFactory.GetProxy(protocol.NewBaseInvoker(*url), url)
+	proxy := proxyFactory.GetProxy(protocol.NewBaseInvoker(url), url)
 	assert.NotNil(t, proxy)
 }
 
@@ -49,13 +49,13 @@
 	proxyFactory := NewDefaultProxyFactory()
 	url := common.NewURLWithOptions()
 	async := &TestAsync{}
-	proxy := proxyFactory.GetAsyncProxy(protocol.NewBaseInvoker(*url), async.CallBack, url)
+	proxy := proxyFactory.GetAsyncProxy(protocol.NewBaseInvoker(url), async.CallBack, url)
 	assert.NotNil(t, proxy)
 }
 
 func TestGetInvoker(t *testing.T) {
 	proxyFactory := NewDefaultProxyFactory()
 	url := common.NewURLWithOptions()
-	invoker := proxyFactory.GetInvoker(*url)
+	invoker := proxyFactory.GetInvoker(url)
 	assert.True(t, invoker.IsAvailable())
 }
diff --git a/common/proxy/proxy_test.go b/common/proxy/proxy_test.go
index 9f5eaad..c6f6596 100644
--- a/common/proxy/proxy_test.go
+++ b/common/proxy/proxy_test.go
@@ -58,7 +58,7 @@
 
 func TestProxyImplement(t *testing.T) {
 
-	invoker := protocol.NewBaseInvoker(common.URL{})
+	invoker := protocol.NewBaseInvoker(&common.URL{})
 	p := NewProxy(invoker, nil, map[string]string{constant.ASYNC_KEY: "false"})
 	s := &TestService{}
 	p.Implement(s)
@@ -126,7 +126,7 @@
 
 func TestProxyImplementForContext(t *testing.T) {
 	invoker := &TestProxyInvoker{
-		BaseInvoker: *protocol.NewBaseInvoker(common.URL{}),
+		BaseInvoker: *protocol.NewBaseInvoker(&common.URL{}),
 	}
 	p := NewProxy(invoker, nil, map[string]string{constant.ASYNC_KEY: "false"})
 	s := &TestService{}
diff --git a/common/url.go b/common/url.go
index 3a88001..d8f096b 100644
--- a/common/url.go
+++ b/common/url.go
@@ -21,6 +21,7 @@
 	"bytes"
 	"encoding/base64"
 	"fmt"
+	cm "github.com/Workiva/go-datastructures/common"
 	"math"
 	"net"
 	"net/url"
@@ -88,12 +89,25 @@
 	PrimitiveURL string
 }
 
-// URL is not thread-safe.
+// noCopy may be embedded into structs which must not be copied
+// after the first use.
+//
+// See https://golang.org/issues/8005#issuecomment-190753527
+// for details.
+type noCopy struct{}
+
+// Lock is a no-op used by -copylocks checker from `go vet`.
+func (*noCopy) Lock()   {}
+func (*noCopy) Unlock() {}
+
+// URL thread-safe. but this url should not be copied.
 // we fail to define this struct to be immutable object.
 // but, those method which will update the URL, including SetParam, SetParams
 // are only allowed to be invoked in creating URL instance
 // Please keep in mind that this struct is immutable after it has been created and initialized.
 type URL struct {
+	noCopy noCopy
+
 	baseUrl
 	Path     string // like  /com.ikurento.dubbo.UserProvider3
 	Username string
@@ -105,80 +119,80 @@
 
 // Option accepts url
 // Option will define a function of handling URL
-type option func(*URL)
+type Option func(*URL)
 
 // WithUsername sets username for url
-func WithUsername(username string) option {
+func WithUsername(username string) Option {
 	return func(url *URL) {
 		url.Username = username
 	}
 }
 
 // WithPassword sets password for url
-func WithPassword(pwd string) option {
+func WithPassword(pwd string) Option {
 	return func(url *URL) {
 		url.Password = pwd
 	}
 }
 
 // WithMethods sets methods for url
-func WithMethods(methods []string) option {
+func WithMethods(methods []string) Option {
 	return func(url *URL) {
 		url.Methods = methods
 	}
 }
 
 // WithParams sets params for url
-func WithParams(params url.Values) option {
+func WithParams(params url.Values) Option {
 	return func(url *URL) {
 		url.params = params
 	}
 }
 
 // WithParamsValue sets params field for url
-func WithParamsValue(key, val string) option {
+func WithParamsValue(key, val string) Option {
 	return func(url *URL) {
 		url.SetParam(key, val)
 	}
 }
 
 // WithProtocol sets protocol for url
-func WithProtocol(proto string) option {
+func WithProtocol(proto string) Option {
 	return func(url *URL) {
 		url.Protocol = proto
 	}
 }
 
 // WithIp sets ip for url
-func WithIp(ip string) option {
+func WithIp(ip string) Option {
 	return func(url *URL) {
 		url.Ip = ip
 	}
 }
 
 // WithPort sets port for url
-func WithPort(port string) option {
+func WithPort(port string) Option {
 	return func(url *URL) {
 		url.Port = port
 	}
 }
 
 // WithPath sets path for url
-func WithPath(path string) option {
+func WithPath(path string) Option {
 	return func(url *URL) {
 		url.Path = "/" + strings.TrimPrefix(path, "/")
 	}
 }
 
 // WithLocation sets location for url
-func WithLocation(location string) option {
+func WithLocation(location string) Option {
 	return func(url *URL) {
 		url.Location = location
 	}
 }
 
 // WithToken sets token for url
-func WithToken(token string) option {
+func WithToken(token string) Option {
 	return func(url *URL) {
 		if len(token) > 0 {
 			value := token
@@ -196,33 +210,26 @@
 }
 
 // NewURLWithOptions will create a new url with options
-func NewURLWithOptions(opts ...option) *URL {
-	url := &URL{}
+func NewURLWithOptions(opts ...Option) *URL {
+	newUrl := &URL{}
 	for _, opt := range opts {
-		opt(url)
+		opt(newUrl)
 	}
-	url.Location = url.Ip + ":" + url.Port
-	return url
+	newUrl.Location = newUrl.Ip + ":" + newUrl.Port
+	return newUrl
 }
 
 // NewURL will create a new url
 // the urlString should not be empty
-func NewURL(urlString string, opts ...option) (URL, error) {
-	var (
-		err          error
-		rawUrlString string
-		serviceUrl   *url.URL
-		s            = URL{baseUrl: baseUrl{}}
-	)
-
-	// new a null instance
+func NewURL(urlString string, opts ...Option) (*URL, error) {
+	s := URL{baseUrl: baseUrl{}}
 	if urlString == "" {
-		return s, nil
+		return &s, nil
 	}
 
-	rawUrlString, err = url.QueryUnescape(urlString)
+	rawUrlString, err := url.QueryUnescape(urlString)
 	if err != nil {
-		return s, perrors.Errorf("url.QueryUnescape(%s),  error{%v}", urlString, err)
+		return &s, perrors.Errorf("url.QueryUnescape(%s),  error{%v}", urlString, err)
 	}
 
 	// rawUrlString = "//" + rawUrlString
@@ -233,14 +240,15 @@
 		}
 		rawUrlString = t.Protocol + "://" + rawUrlString
 	}
-	serviceUrl, err = url.Parse(rawUrlString)
-	if err != nil {
-		return s, perrors.Errorf("url.Parse(url string{%s}),  error{%v}", rawUrlString, err)
+
+	serviceUrl, urlParseErr := url.Parse(rawUrlString)
+	if urlParseErr != nil {
+		return &s, perrors.Errorf("url.Parse(url string{%s}),  error{%v}", rawUrlString, err)
 	}
 
 	s.params, err = url.ParseQuery(serviceUrl.RawQuery)
 	if err != nil {
-		return s, perrors.Errorf("url.ParseQuery(raw url string{%s}),  error{%v}", serviceUrl.RawQuery, err)
+		return &s, perrors.Errorf("url.ParseQuery(raw url string{%s}),  error{%v}", serviceUrl.RawQuery, err)
 	}
 
 	s.PrimitiveURL = urlString
@@ -252,25 +260,29 @@
 	if strings.Contains(s.Location, ":") {
 		s.Ip, s.Port, err = net.SplitHostPort(s.Location)
 		if err != nil {
-			return s, perrors.Errorf("net.SplitHostPort(url.Host{%s}), error{%v}", s.Location, err)
+			return &s, perrors.Errorf("net.SplitHostPort(url.Host{%s}), error{%v}", s.Location, err)
 		}
 	}
 	for _, opt := range opts {
 		opt(&s)
 	}
-	return s, nil
+	return &s, nil
 }
 
 // URLEqual judge @url and @c is equal or not.
-func (c URL) URLEqual(url URL) bool {
-	c.Ip = ""
-	c.Port = ""
-	url.Ip = ""
-	url.Port = ""
-	cGroup := c.GetParam(constant.GROUP_KEY, "")
-	urlGroup := url.GetParam(constant.GROUP_KEY, "")
-	cKey := c.Key()
-	urlKey := url.Key()
+func (c *URL) URLEqual(url *URL) bool {
+	tmpC := c.Clone()
+	tmpC.Ip = ""
+	tmpC.Port = ""
+
+	tmpUrl := url.Clone()
+	tmpUrl.Ip = ""
+	tmpUrl.Port = ""
+
+	cGroup := tmpC.GetParam(constant.GROUP_KEY, "")
+	urlGroup := tmpUrl.GetParam(constant.GROUP_KEY, "")
+	cKey := tmpC.Key()
+	urlKey := tmpUrl.Key()
 
 	if cGroup == constant.ANY_VALUE {
 		cKey = strings.Replace(cKey, "group=*", "group="+urlGroup, 1)
@@ -284,12 +296,12 @@
 	}
 
 	// 2. if url contains enabled key, should be true, or *
-	if url.GetParam(constant.ENABLED_KEY, "true") != "true" && url.GetParam(constant.ENABLED_KEY, "") != constant.ANY_VALUE {
+	if tmpUrl.GetParam(constant.ENABLED_KEY, "true") != "true" && tmpUrl.GetParam(constant.ENABLED_KEY, "") != constant.ANY_VALUE {
 		return false
 	}
 
 	// TODO :may need add interface key any value condition
-	return isMatchCategory(url.GetParam(constant.CATEGORY_KEY, constant.DEFAULT_CATEGORY), c.GetParam(constant.CATEGORY_KEY, constant.DEFAULT_CATEGORY))
+	return isMatchCategory(tmpUrl.GetParam(constant.CATEGORY_KEY, constant.DEFAULT_CATEGORY), tmpC.GetParam(constant.CATEGORY_KEY, constant.DEFAULT_CATEGORY))
 }
 
 func isMatchCategory(category1 string, category2 string) bool {
@@ -304,31 +316,26 @@
 	}
 }
 
-func (c URL) String() string {
+func (c *URL) String() string {
 	var buf strings.Builder
 	if len(c.Username) == 0 && len(c.Password) == 0 {
-		buf.WriteString(fmt.Sprintf(
-			"%s://%s:%s%s?",
-			c.Protocol, c.Ip, c.Port, c.Path))
+		buf.WriteString(fmt.Sprintf("%s://%s:%s%s?", c.Protocol, c.Ip, c.Port, c.Path))
 	} else {
-		buf.WriteString(fmt.Sprintf(
-			"%s://%s:%s@%s:%s%s?",
-			c.Protocol, c.Username, c.Password, c.Ip, c.Port, c.Path))
+		buf.WriteString(fmt.Sprintf("%s://%s:%s@%s:%s%s?", c.Protocol, c.Username, c.Password, c.Ip, c.Port, c.Path))
 	}
 	buf.WriteString(c.params.Encode())
 	return buf.String()
 }
 
 // Key gets key
-func (c URL) Key() string {
-	buildString := fmt.Sprintf(
-		"%s://%s:%s@%s:%s/?interface=%s&group=%s&version=%s",
+func (c *URL) Key() string {
+	buildString := fmt.Sprintf("%s://%s:%s@%s:%s/?interface=%s&group=%s&version=%s",
 		c.Protocol, c.Username, c.Password, c.Ip, c.Port, c.Service(), c.GetParam(constant.GROUP_KEY, ""), c.GetParam(constant.VERSION_KEY, ""))
 	return buildString
 }
 
 // ServiceKey gets a unique key of a service.
-func (c URL) ServiceKey() string {
+func (c *URL) ServiceKey() string {
 	return ServiceKey(c.GetParam(constant.INTERFACE_KEY, strings.TrimPrefix(c.Path, "/")),
 		c.GetParam(constant.GROUP_KEY, ""), c.GetParam(constant.VERSION_KEY, ""))
 }
@@ -382,7 +389,7 @@
 }
 
 // Service gets service
-func (c URL) Service() string {
+func (c *URL) Service() string {
 	service := c.GetParam(constant.INTERFACE_KEY, strings.TrimPrefix(c.Path, "/"))
 	if service != "" {
 		return service
@@ -409,7 +416,6 @@
 	if c.params == nil {
 		c.params = url.Values{}
 	}
-
 	c.params.Add(key, value)
 }
 
@@ -433,7 +439,7 @@
 }
 
 // GetParam gets value by key
-func (c URL) GetParam(s string, d string) string {
+func (c *URL) GetParam(s string, d string) string {
 	c.paramsLock.RLock()
 	defer c.paramsLock.RUnlock()
 	r := c.params.Get(s)
@@ -444,19 +450,19 @@
 }
 
 // GetParams gets values
-func (c URL) GetParams() url.Values {
+func (c *URL) GetParams() url.Values {
 	return c.params
 }
 
 // GetParamAndDecoded gets values and decode
-func (c URL) GetParamAndDecoded(key string) (string, error) {
+func (c *URL) GetParamAndDecoded(key string) (string, error) {
 	ruleDec, err := base64.URLEncoding.DecodeString(c.GetParam(key, ""))
 	value := string(ruleDec)
 	return value, err
 }
 
 // GetRawParam gets raw param
-func (c URL) GetRawParam(key string) string {
+func (c *URL) GetRawParam(key string) string {
 	switch key {
 	case PROTOCOL:
 		return c.Protocol
@@ -476,7 +482,7 @@
 }
 
 // GetParamBool judge whether @key exists or not
-func (c URL) GetParamBool(key string, d bool) bool {
+func (c *URL) GetParamBool(key string, d bool) bool {
 	r, err := strconv.ParseBool(c.GetParam(key, ""))
 	if err != nil {
 		return d
@@ -485,34 +491,34 @@
 }
 
 // GetParamInt gets int64 value by @key
-func (c URL) GetParamInt(key string, d int64) int64 {
+func (c *URL) GetParamInt(key string, d int64) int64 {
 	r, err := strconv.ParseInt(c.GetParam(key, ""), 10, 64)
-	if  err != nil {
+	if err != nil {
 		return d
 	}
 	return r
 }
 
 // GetParamInt32 gets int32 value by @key
-func (c URL) GetParamInt32(key string, d int32) int32 {
+func (c *URL) GetParamInt32(key string, d int32) int32 {
 	r, err := strconv.ParseInt(c.GetParam(key, ""), 10, 32)
-	if  err != nil {
+	if err != nil {
 		return d
 	}
 	return int32(r)
 }
 
 // GetParamByIntValue gets int value by @key
-func (c URL) GetParamByIntValue(key string, d int) int {
+func (c *URL) GetParamByIntValue(key string, d int) int {
 	r, err := strconv.ParseInt(c.GetParam(key, ""), 10, 0)
-	if  err != nil {
+	if err != nil {
 		return d
 	}
 	return int(r)
 }
 
 // GetMethodParamInt gets int method param
-func (c URL) GetMethodParamInt(method string, key string, d int64) int64 {
+func (c *URL) GetMethodParamInt(method string, key string, d int64) int64 {
 	r, err := strconv.ParseInt(c.GetParam("methods."+method+"."+key, ""), 10, 64)
 	if err != nil {
 		return d
@@ -521,7 +527,7 @@
 }
 
 // GetMethodParamIntValue gets int method param
-func (c URL) GetMethodParamIntValue(method string, key string, d int) int {
+func (c *URL) GetMethodParamIntValue(method string, key string, d int) int {
 	r, err := strconv.ParseInt(c.GetParam("methods."+method+"."+key, ""), 10, 0)
 	if err != nil {
 		return d
@@ -530,7 +536,7 @@
 }
 
 // GetMethodParamInt64 gets int64 method param
-func (c URL) GetMethodParamInt64(method string, key string, d int64) int64 {
+func (c *URL) GetMethodParamInt64(method string, key string, d int64) int64 {
 	r := c.GetMethodParamInt(method, key, math.MinInt64)
 	if r == math.MinInt64 {
 		return c.GetParamInt(key, d)
@@ -539,7 +545,7 @@
 }
 
 // GetMethodParam gets method param
-func (c URL) GetMethodParam(method string, key string, d string) string {
+func (c *URL) GetMethodParam(method string, key string, d string) string {
 	r := c.GetParam("methods."+method+"."+key, "")
 	if r == "" {
 		r = d
@@ -548,7 +554,7 @@
 }
 
 // GetMethodParamBool judge whether @method param exists or not
-func (c URL) GetMethodParamBool(method string, key string, d bool) bool {
+func (c *URL) GetMethodParamBool(method string, key string, d bool) bool {
 	r := c.GetParamBool("methods."+method+"."+key, d)
 	return r
 }
@@ -564,7 +570,7 @@
 }
 
 // ToMap transfer URL to Map
-func (c URL) ToMap() map[string]string {
+func (c *URL) ToMap() map[string]string {
 	paramsMap := make(map[string]string)
 
 	c.RangeParams(func(key, value string) bool {
@@ -668,6 +674,19 @@
 	return newUrl
 }
 
+func (c *URL) Compare(comp cm.Comparator) int {
+	a := c.String()
+	b := comp.(*URL).String()
+	switch {
+	case a > b:
+		return 1
+	case a < b:
+		return -1
+	default:
+		return 0
+	}
+}
+
 // Copy url based on the reserved parameter's keys.
 func (c *URL) CloneWithParams(reserveParams []string) *URL {
 	params := url.Values{}
@@ -691,7 +710,7 @@
 }
 
 // IsEquals compares if two URLs equals with each other. Excludes are all parameter keys which should ignored.
-func IsEquals(left URL, right URL, excludes ...string) bool {
+func IsEquals(left *URL, right *URL, excludes ...string) bool {
 	if left.Ip != right.Ip || left.Port != right.Port {
 		return false
 	}
@@ -735,7 +754,7 @@
 
 // URLSlice will be used to sort URL instance
 // Instances will be order by URL.String()
-type URLSlice []URL
+type URLSlice []*URL
 
 // nolint
 func (s URLSlice) Len() int {
diff --git a/common/url_test.go b/common/url_test.go
index 12020f4..05377c1 100644
--- a/common/url_test.go
+++ b/common/url_test.go
@@ -289,7 +289,7 @@
 	referenceUrl, _ := NewURL("mock1://127.0.0.1:1111", WithParams(referenceUrlParams), WithMethods([]string{"testMethod"}))
 	serviceUrl, _ := NewURL("mock2://127.0.0.1:20000", WithParams(serviceUrlParams))
 
-	mergedUrl := MergeUrl(&serviceUrl, &referenceUrl)
+	mergedUrl := MergeUrl(serviceUrl, referenceUrl)
 	assert.Equal(t, "random", mergedUrl.GetParam(constant.CLUSTER_KEY, ""))
 	assert.Equal(t, "1", mergedUrl.GetParam("test2", ""))
 	assert.Equal(t, "1", mergedUrl.GetParam("test3", ""))
diff --git a/config/config_center_config.go b/config/config_center_config.go
index 0fc4007..752d9d4 100644
--- a/config/config_center_config.go
+++ b/config/config_center_config.go
@@ -91,7 +91,7 @@
 
 // toURL will compatible with baseConfig.ConfigCenterConfig.Address and baseConfig.ConfigCenterConfig.RemoteRef before 1.6.0
 // After 1.6.0 will not compatible, only baseConfig.ConfigCenterConfig.RemoteRef
-func (b *configCenter) toURL(baseConfig BaseConfig) (common.URL, error) {
+func (b *configCenter) toURL(baseConfig BaseConfig) (*common.URL, error) {
 	if len(baseConfig.ConfigCenterConfig.Address) > 0 {
 		return common.NewURL(baseConfig.ConfigCenterConfig.Address,
 			common.WithProtocol(baseConfig.ConfigCenterConfig.Protocol), common.WithParams(baseConfig.ConfigCenterConfig.GetUrlMap()))
@@ -101,7 +101,7 @@
 	rc, ok := baseConfig.GetRemoteConfig(remoteRef)
 
 	if !ok {
-		return common.URL{}, perrors.New("Could not find out the remote ref config, name: " + remoteRef)
+		return nil, perrors.New("Could not find out the remote ref config, name: " + remoteRef)
 	}
 
 	newURL, err := rc.toURL()
@@ -114,11 +114,11 @@
 // startConfigCenter will start the config center.
 // it will prepare the environment
 func (b *configCenter) startConfigCenter(baseConfig BaseConfig) error {
-	url, err := b.toURL(baseConfig)
+	newUrl, err := b.toURL(baseConfig)
 	if err != nil {
 		return err
 	}
-	if err = b.prepareEnvironment(baseConfig, &url); err != nil {
+	if err = b.prepareEnvironment(baseConfig, newUrl); err != nil {
 		return perrors.WithMessagef(err, "start config center error!")
 	}
 	// c.fresh()
diff --git a/config/config_loader.go b/config/config_loader.go
index f210224..ec591aa 100644
--- a/config/config_loader.go
+++ b/config/config_loader.go
@@ -216,7 +216,7 @@
 	if url == nil {
 		return
 	}
-	instance, err := createInstance(*url)
+	instance, err := createInstance(url)
 	if err != nil {
 		panic(err)
 	}
@@ -240,7 +240,7 @@
 }
 
 // nolint
-func createInstance(url common.URL) (registry.ServiceInstance, error) {
+func createInstance(url *common.URL) (registry.ServiceInstance, error) {
 	appConfig := GetApplicationConfig()
 	port, err := strconv.ParseInt(url.Port, 10, 32)
 	if err != nil {
@@ -250,9 +250,6 @@
 	host := url.Ip
 	if len(host) == 0 {
 		host = common.GetLocalIp()
-		if err != nil {
-			return nil, perrors.WithMessage(err, "could not get the local Ip")
-		}
 	}
 
 	// usually we will add more metadata
@@ -272,7 +269,7 @@
 
 // selectMetadataServiceExportedURL get already be exported url
 func selectMetadataServiceExportedURL() *common.URL {
-	var selectedUrl common.URL
+	var selectedUrl *common.URL
 	metaDataService, err := extension.GetMetadataService(GetApplicationConfig().MetadataType)
 	if err != nil {
 		logger.Warn(err)
@@ -297,7 +294,7 @@
 			break
 		}
 	}
-	return &selectedUrl
+	return selectedUrl
 }
 
 func initRouter() {
diff --git a/config/config_loader_test.go b/config/config_loader_test.go
index 461e607..9b25303 100644
--- a/config/config_loader_test.go
+++ b/config/config_loader_test.go
@@ -25,7 +25,6 @@
 )
 
 import (
-	cm "github.com/Workiva/go-datastructures/common"
 	"github.com/Workiva/go-datastructures/slice/skip"
 	gxset "github.com/dubbogo/gost/container/set"
 	gxpage "github.com/dubbogo/gost/page"
@@ -353,27 +352,27 @@
 	panic("implement me")
 }
 
-func (m *mockMetadataService) ExportURL(url common.URL) (bool, error) {
-	return m.addURL(m.exportedServiceURLs, &url), nil
+func (m *mockMetadataService) ExportURL(url *common.URL) (bool, error) {
+	return m.addURL(m.exportedServiceURLs, url), nil
 }
 
-func (m *mockMetadataService) UnexportURL(url common.URL) error {
+func (m *mockMetadataService) UnexportURL(*common.URL) error {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) SubscribeURL(url common.URL) (bool, error) {
+func (m *mockMetadataService) SubscribeURL(*common.URL) (bool, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) UnsubscribeURL(url common.URL) error {
+func (m *mockMetadataService) UnsubscribeURL(*common.URL) error {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) PublishServiceDefinition(url common.URL) error {
+func (m *mockMetadataService) PublishServiceDefinition(*common.URL) error {
 	return nil
 }
 
-func (m *mockMetadataService) GetExportedURLs(serviceInterface string, group string, version string, protocol string) ([]interface{}, error) {
+func (m *mockMetadataService) GetExportedURLs(string, string, string, string) ([]interface{}, error) {
 	return ConvertURLArrToIntfArr(m.getAllService(m.exportedServiceURLs)), nil
 }
 
@@ -381,19 +380,19 @@
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetSubscribedURLs() ([]common.URL, error) {
+func (m *mockMetadataService) GetSubscribedURLs() ([]*common.URL, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetServiceDefinition(interfaceName string, group string, version string) (string, error) {
+func (m *mockMetadataService) GetServiceDefinition(string, string, string) (string, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetServiceDefinitionByServiceKey(serviceKey string) (string, error) {
+func (m *mockMetadataService) GetServiceDefinitionByServiceKey(string) (string, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) RefreshMetadata(exportedRevision string, subscribedRevision string) (bool, error) {
+func (m *mockMetadataService) RefreshMetadata(string, string) (bool, error) {
 	panic("implement me")
 }
 
@@ -409,7 +408,7 @@
 	logger.Debug(url.ServiceKey())
 	if urlSet, loaded = targetMap.LoadOrStore(url.ServiceKey(), skip.New(uint64(0))); loaded {
 		mts.lock.RLock()
-		wantedUrl := urlSet.(*skip.SkipList).Get(Comparator(*url))
+		wantedUrl := urlSet.(*skip.SkipList).Get(url)
 		if len(wantedUrl) > 0 && wantedUrl[0] != nil {
 			mts.lock.RUnlock()
 			return false
@@ -418,23 +417,23 @@
 	}
 	mts.lock.Lock()
 	// double chk
-	wantedUrl := urlSet.(*skip.SkipList).Get(Comparator(*url))
+	wantedUrl := urlSet.(*skip.SkipList).Get(url)
 	if len(wantedUrl) > 0 && wantedUrl[0] != nil {
 		mts.lock.Unlock()
 		return false
 	}
-	urlSet.(*skip.SkipList).Insert(Comparator(*url))
+	urlSet.(*skip.SkipList).Insert(url)
 	mts.lock.Unlock()
 	return true
 }
 
-func (m *mockMetadataService) getAllService(services *sync.Map) []common.URL {
+func (m *mockMetadataService) getAllService(services *sync.Map) []*common.URL {
 	// using skip list to dedup and sorting
-	res := make([]common.URL, 0)
+	var res []*common.URL
 	services.Range(func(key, value interface{}) bool {
 		urls := value.(*skip.SkipList)
 		for i := uint64(0); i < urls.Len(); i++ {
-			url := common.URL(urls.ByPosition(i).(Comparator))
+			url := urls.ByPosition(i).(*common.URL)
 			if url.GetParam(constant.INTERFACE_KEY, url.Path) != constant.METADATA_SERVICE_NAME {
 				res = append(res, url)
 			}
@@ -445,26 +444,10 @@
 	return res
 }
 
-type Comparator common.URL
-
-// Compare is defined as Comparator for skip list to compare the URL
-func (c Comparator) Compare(comp cm.Comparator) int {
-	a := common.URL(c).String()
-	b := common.URL(comp.(Comparator)).String()
-	switch {
-	case a > b:
-		return 1
-	case a < b:
-		return -1
-	default:
-		return 0
-	}
-}
-
 type mockServiceDiscoveryRegistry struct {
 }
 
-func (mr *mockServiceDiscoveryRegistry) GetUrl() common.URL {
+func (mr *mockServiceDiscoveryRegistry) GetUrl() *common.URL {
 	panic("implement me")
 }
 
@@ -476,11 +459,11 @@
 	panic("implement me")
 }
 
-func (mr *mockServiceDiscoveryRegistry) Register(url common.URL) error {
+func (mr *mockServiceDiscoveryRegistry) Register(*common.URL) error {
 	panic("implement me")
 }
 
-func (mr *mockServiceDiscoveryRegistry) UnRegister(url common.URL) error {
+func (mr *mockServiceDiscoveryRegistry) UnRegister(*common.URL) error {
 	panic("implement me")
 }
 
@@ -507,15 +490,15 @@
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) Register(instance registry.ServiceInstance) error {
+func (m *mockServiceDiscovery) Register(registry.ServiceInstance) error {
 	return nil
 }
 
-func (m *mockServiceDiscovery) Update(instance registry.ServiceInstance) error {
+func (m *mockServiceDiscovery) Update(registry.ServiceInstance) error {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) Unregister(instance registry.ServiceInstance) error {
+func (m *mockServiceDiscovery) Unregister(registry.ServiceInstance) error {
 	panic("implement me")
 }
 
@@ -527,39 +510,39 @@
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) GetInstances(serviceName string) []registry.ServiceInstance {
+func (m *mockServiceDiscovery) GetInstances(string) []registry.ServiceInstance {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) GetInstancesByPage(serviceName string, offset int, pageSize int) gxpage.Pager {
+func (m *mockServiceDiscovery) GetInstancesByPage(string, int, int) gxpage.Pager {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) GetHealthyInstancesByPage(serviceName string, offset int, pageSize int, healthy bool) gxpage.Pager {
+func (m *mockServiceDiscovery) GetHealthyInstancesByPage(string, int, int, bool) gxpage.Pager {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) GetRequestInstances(serviceNames []string, offset int, requestedSize int) map[string]gxpage.Pager {
+func (m *mockServiceDiscovery) GetRequestInstances([]string, int, int) map[string]gxpage.Pager {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) AddListener(listener *registry.ServiceInstancesChangedListener) error {
+func (m *mockServiceDiscovery) AddListener(*registry.ServiceInstancesChangedListener) error {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) DispatchEventByServiceName(serviceName string) error {
+func (m *mockServiceDiscovery) DispatchEventByServiceName(string) error {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) DispatchEventForInstances(serviceName string, instances []registry.ServiceInstance) error {
+func (m *mockServiceDiscovery) DispatchEventForInstances(string, []registry.ServiceInstance) error {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) DispatchEvent(event *registry.ServiceInstancesChangedEvent) error {
+func (m *mockServiceDiscovery) DispatchEvent(*registry.ServiceInstancesChangedEvent) error {
 	panic("implement me")
 }
 
-func ConvertURLArrToIntfArr(urls []common.URL) []interface{} {
+func ConvertURLArrToIntfArr(urls []*common.URL) []interface{} {
 	if len(urls) == 0 {
 		return []interface{}{}
 	}
diff --git a/config/instance/metadata_report.go b/config/instance/metadata_report.go
index 8e833dd..68a197d 100644
--- a/config/instance/metadata_report.go
+++ b/config/instance/metadata_report.go
@@ -29,7 +29,7 @@
 
 var (
 	instance  report.MetadataReport
-	reportUrl common.URL
+	reportUrl *common.URL
 	once      sync.Once
 )
 
@@ -41,18 +41,18 @@
 		if len(selectiveUrl) > 0 {
 			url = selectiveUrl[0]
 			instance = extension.GetMetadataReportFactory(url.Protocol).CreateMetadataReport(url)
-			reportUrl = *url
+			reportUrl = url
 		}
 	})
 	return instance
 }
 
 // GetMetadataReportUrl will return the report instance url
-func GetMetadataReportUrl() common.URL {
+func GetMetadataReportUrl() *common.URL {
 	return reportUrl
 }
 
 // SetMetadataReportUrl will only can be used by unit test to mock url
-func SetMetadataReportUrl(url common.URL) {
+func SetMetadataReportUrl(url *common.URL) {
 	reportUrl = url
 }
diff --git a/config/instance/metadata_report_test.go b/config/instance/metadata_report_test.go
index d489af0..110903a 100644
--- a/config/instance/metadata_report_test.go
+++ b/config/instance/metadata_report_test.go
@@ -38,7 +38,7 @@
 		return &mockMetadataReportFactory{}
 	})
 	u, _ := common.NewURL("mock://127.0.0.1")
-	rpt := GetMetadataReportInstance(&u)
+	rpt := GetMetadataReportInstance(u)
 	assert.NotNil(t, rpt)
 }
 
@@ -60,7 +60,7 @@
 	panic("implement me")
 }
 
-func (m mockMetadataReport) SaveServiceMetadata(*identifier.ServiceMetadataIdentifier, common.URL) error {
+func (m mockMetadataReport) SaveServiceMetadata(*identifier.ServiceMetadataIdentifier, *common.URL) error {
 	panic("implement me")
 }
 
diff --git a/config/metadata_report_config.go b/config/metadata_report_config.go
index 6d319e5..24eba5e 100644
--- a/config/metadata_report_config.go
+++ b/config/metadata_report_config.go
@@ -84,7 +84,7 @@
 		return nil, perrors.New("Invalid MetadataReportConfig.")
 	}
 	res.SetParam("metadata", res.Protocol)
-	return &res, nil
+	return res, nil
 }
 
 func (c *MetadataReportConfig) IsValid() bool {
@@ -101,8 +101,8 @@
 		return perrors.New("MetadataConfig remote ref can not be empty.")
 	}
 
-	if url, err := metadataReportConfig.ToUrl(); err == nil {
-		instance.GetMetadataReportInstance(url)
+	if tmpUrl, err := metadataReportConfig.ToUrl(); err == nil {
+		instance.GetMetadataReportInstance(tmpUrl)
 	} else {
 		return perrors.Wrap(err, "Start MetadataReport failed.")
 	}
diff --git a/config/reference_config.go b/config/reference_config.go
index cd10f89..2e914ac 100644
--- a/config/reference_config.go
+++ b/config/reference_config.go
@@ -114,13 +114,13 @@
 			}
 			if serviceUrl.Protocol == constant.REGISTRY_PROTOCOL {
 				serviceUrl.SubURL = cfgURL
-				c.urls = append(c.urls, &serviceUrl)
+				c.urls = append(c.urls, serviceUrl)
 			} else {
 				if serviceUrl.Path == "" {
 					serviceUrl.Path = "/" + c.id
 				}
 				// merge url need to do
-				newUrl := common.MergeUrl(&serviceUrl, cfgURL)
+				newUrl := common.MergeUrl(serviceUrl, cfgURL)
 				c.urls = append(c.urls, newUrl)
 			}
 		}
@@ -135,12 +135,12 @@
 	}
 
 	if len(c.urls) == 1 {
-		c.invoker = extension.GetProtocol(c.urls[0].Protocol).Refer(*c.urls[0])
+		c.invoker = extension.GetProtocol(c.urls[0].Protocol).Refer(c.urls[0])
 	} else {
 		invokers := make([]protocol.Invoker, 0, len(c.urls))
 		var regUrl *common.URL
 		for _, u := range c.urls {
-			invokers = append(invokers, extension.GetProtocol(u.Protocol).Refer(*u))
+			invokers = append(invokers, extension.GetProtocol(u.Protocol).Refer(u))
 			if u.Protocol == constant.REGISTRY_PROTOCOL {
 				regUrl = u
 			}
diff --git a/config/reference_config_test.go b/config/reference_config_test.go
index a4345ad..0207e1f 100644
--- a/config/reference_config_test.go
+++ b/config/reference_config_test.go
@@ -334,7 +334,7 @@
 
 type mockRegistryProtocol struct{}
 
-func (*mockRegistryProtocol) Refer(url common.URL) protocol.Invoker {
+func (*mockRegistryProtocol) Refer(url *common.URL) protocol.Invoker {
 	return protocol.NewBaseInvoker(url)
 }
 
@@ -345,7 +345,7 @@
 		if err != nil {
 			panic(err)
 		}
-		ok, err := metaDataService.ExportURL(*invoker.GetUrl().SubURL.Clone())
+		ok, err := metaDataService.ExportURL(invoker.GetUrl().SubURL.Clone())
 		if err != nil {
 			panic(err)
 		}
@@ -367,7 +367,7 @@
 		protocol := url.GetParam(constant.REGISTRY_KEY, "")
 		url.Protocol = protocol
 	}
-	return &url
+	return url
 }
 
 func (p *mockRegistryProtocol) GetRegistries() []registry.Registry {
diff --git a/config/registry_config.go b/config/registry_config.go
index 89566c4..5aff45d 100644
--- a/config/registry_config.go
+++ b/config/registry_config.go
@@ -53,7 +53,7 @@
 	//ZoneForce bool `yaml:"zoneForce" json:"zoneForce,omitempty" property:"zoneForce"`
 	// Affects traffic distribution among registries,
 	// useful when subscribe to multiple registries Take effect only when no preferred registry is specified.
-	Weight int64             `yaml:"weight" json:"params,omitempty" property:"weight"`
+	Weight int64             `yaml:"weight" json:"weight,omitempty" property:"weight"`
 	Params map[string]string `yaml:"params" json:"params,omitempty" property:"params"`
 }
 
@@ -114,7 +114,7 @@
 				logger.Errorf("The registry id: %s url is invalid, error: %#v", k, err)
 				panic(err)
 			} else {
-				urls = append(urls, &url)
+				urls = append(urls, url)
 			}
 		}
 	}
diff --git a/config/remote_config.go b/config/remote_config.go
index 0f0c3e5..61d4dce 100644
--- a/config/remote_config.go
+++ b/config/remote_config.go
@@ -63,9 +63,9 @@
 	return param
 }
 
-func (rc *RemoteConfig) toURL() (common.URL, error) {
+func (rc *RemoteConfig) toURL() (*common.URL, error) {
 	if len(rc.Protocol) == 0 {
-		return common.URL{}, perrors.Errorf("Must provide protocol in RemoteConfig.")
+		return nil, perrors.Errorf("Must provide protocol in RemoteConfig.")
 	}
 	return common.NewURL(rc.Address,
 		common.WithUsername(rc.Username),
diff --git a/config/service_config.go b/config/service_config.go
index 9a27443..b3febc6 100644
--- a/config/service_config.go
+++ b/config/service_config.go
@@ -208,7 +208,7 @@
 
 			for _, regUrl := range regUrls {
 				regUrl.SubURL = ivkURL
-				invoker := proxyFactory.GetInvoker(*regUrl)
+				invoker := proxyFactory.GetInvoker(regUrl)
 				exporter := c.cacheProtocol.Export(invoker)
 				if exporter == nil {
 					return perrors.New(fmt.Sprintf("Registry protocol new exporter error, registry is {%v}, url is {%v}", regUrl, ivkURL))
@@ -216,7 +216,7 @@
 				c.exporters = append(c.exporters, exporter)
 			}
 		} else {
-			invoker := proxyFactory.GetInvoker(*ivkURL)
+			invoker := proxyFactory.GetInvoker(ivkURL)
 			exporter := extension.GetProtocol(protocolwrapper.FILTER).Export(invoker)
 			if exporter == nil {
 				return perrors.New(fmt.Sprintf("Filter protocol without registry new exporter error, url is {%v}", ivkURL))
@@ -326,8 +326,7 @@
 	if c.exported.Load() {
 		var urls []*common.URL
 		for _, exporter := range c.exporters {
-			url := exporter.GetInvoker().GetUrl()
-			urls = append(urls, &url)
+			urls = append(urls, exporter.GetInvoker().GetUrl())
 		}
 		return urls
 	}
diff --git a/config_center/apollo/impl.go b/config_center/apollo/impl.go
index ac5328c..c69fc2f 100644
--- a/config_center/apollo/impl.go
+++ b/config_center/apollo/impl.go
@@ -109,11 +109,11 @@
 }
 
 func (c *apolloConfiguration) GetInternalProperty(key string, opts ...cc.Option) (string, error) {
-	config := agollo.GetConfig(c.appConf.NamespaceName)
-	if config == nil {
+	newConfig := agollo.GetConfig(c.appConf.NamespaceName)
+	if newConfig == nil {
 		return "", perrors.New(fmt.Sprintf("nothing in namespace:%s ", key))
 	}
-	return config.GetStringValue(key, ""), nil
+	return newConfig.GetStringValue(key, ""), nil
 }
 
 func (c *apolloConfiguration) GetRule(key string, opts ...cc.Option) (string, error) {
@@ -135,11 +135,11 @@
 	 * when group is not null, we are getting startup configs(config file) from Config Center, for example:
 	 * key=dubbo.propertie
 	 */
-	config := agollo.GetConfig(key)
-	if config == nil {
+	tmpConfig := agollo.GetConfig(key)
+	if tmpConfig == nil {
 		return "", perrors.New(fmt.Sprintf("nothing in namespace:%s ", key))
 	}
-	return config.GetContent(), nil
+	return tmpConfig.GetContent(), nil
 }
 
 func (c *apolloConfiguration) getAddressWithProtocolPrefix(url *common.URL) string {
diff --git a/config_center/apollo/impl_test.go b/config_center/apollo/impl_test.go
index 50c4e68..4720775 100644
--- a/config_center/apollo/impl_test.go
+++ b/config_center/apollo/impl_test.go
@@ -197,7 +197,7 @@
 	apolloUrl := strings.ReplaceAll(apollo.URL, "http", "apollo")
 	url, err := common.NewURL(apolloUrl, common.WithParams(c.ConfigCenterConfig.GetUrlMap()))
 	assert.NoError(t, err)
-	configuration, err := newApolloConfiguration(&url)
+	configuration, err := newApolloConfiguration(url)
 	assert.NoError(t, err)
 	return configuration
 }
diff --git a/config_center/configurator/override_test.go b/config_center/configurator/override_test.go
index 8eccb50..bb9c367 100644
--- a/config_center/configurator/override_test.go
+++ b/config_center/configurator/override_test.go
@@ -40,36 +40,36 @@
 func TestConfigureVerison2p6(t *testing.T) {
 	url, err := common.NewURL("override://0.0.0.0:0/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService")
 	assert.NoError(t, err)
-	configurator := extension.GetConfigurator(defaults, &url)
+	configurator := extension.GetConfigurator(defaults, url)
 	assert.Equal(t, override, configurator.GetUrl().Protocol)
 
 	providerUrl, err := common.NewURL("jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&app.version=0.0.1&application=BDTService&category=providers&cluster=failover&dubbo=dubbo-provider-golang-2.6.0&environment=dev&group=&interface=com.ikurento.user.UserProvider&ip=10.32.20.124&loadbalance=random&methods.GetUser.loadbalance=random&methods.GetUser.retries=1&methods.GetUser.weight=0&module=dubbogo+user-info+server&name=BDTService&organization=ikurento.com&owner=ZX&pid=64225&retries=0&service.filter=echo&side=provider&timestamp=1562076628&version=&warmup=100")
 	assert.NoError(t, err)
-	configurator.Configure(&providerUrl)
+	configurator.Configure(providerUrl)
 	assert.Equal(t, failfast, providerUrl.GetParam(constant.CLUSTER_KEY, ""))
 }
 
 func TestConfigureVerisonOverrideAddr(t *testing.T) {
 	url, err := common.NewURL("override://0.0.0.0:0/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService&providerAddresses=127.0.0.2:20001|127.0.0.3:20001")
 	assert.NoError(t, err)
-	configurator := extension.GetConfigurator(defaults, &url)
+	configurator := extension.GetConfigurator(defaults, url)
 	assert.Equal(t, override, configurator.GetUrl().Protocol)
 
 	providerUrl, err := common.NewURL("jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&app.version=0.0.1&application=BDTService&category=providers&cluster=failover&dubbo=dubbo-provider-golang-2.6.0&environment=dev&group=&interface=com.ikurento.user.UserProvider&ip=10.32.20.124&loadbalance=random&methods.GetUser.loadbalance=random&methods.GetUser.retries=1&methods.GetUser.weight=0&module=dubbogo+user-info+server&name=BDTService&organization=ikurento.com&owner=ZX&pid=64225&retries=0&service.filter=echo&side=provider&timestamp=1562076628&version=&warmup=100")
 	assert.NoError(t, err)
-	configurator.Configure(&providerUrl)
+	configurator.Configure(providerUrl)
 	assert.Equal(t, failover, providerUrl.GetParam(constant.CLUSTER_KEY, ""))
 }
 
 func TestConfigureVerison2p6WithIp(t *testing.T) {
 	url, err := common.NewURL("override://127.0.0.1:20001/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService")
 	assert.NoError(t, err)
-	configurator := extension.GetConfigurator(defaults, &url)
+	configurator := extension.GetConfigurator(defaults, url)
 	assert.Equal(t, override, configurator.GetUrl().Protocol)
 
 	providerUrl, err := common.NewURL("jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&app.version=0.0.1&application=BDTService&category=providers&cluster=failover&dubbo=dubbo-provider-golang-2.6.0&environment=dev&group=&interface=com.ikurento.user.UserProvider&ip=10.32.20.124&loadbalance=random&methods.GetUser.loadbalance=random&methods.GetUser.retries=1&methods.GetUser.weight=0&module=dubbogo+user-info+server&name=BDTService&organization=ikurento.com&owner=ZX&pid=64225&retries=0&service.filter=echo&side=provider&timestamp=1562076628&version=&warmup=100")
 	assert.NoError(t, err)
-	configurator.Configure(&providerUrl)
+	configurator.Configure(providerUrl)
 	assert.Equal(t, failfast, providerUrl.GetParam(constant.CLUSTER_KEY, ""))
 
 }
@@ -77,11 +77,11 @@
 func TestConfigureVerison2p7(t *testing.T) {
 	url, err := common.NewURL("jsonrpc://0.0.0.0:20001/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService&configVersion=1.0&side=provider")
 	assert.NoError(t, err)
-	configurator := extension.GetConfigurator(defaults, &url)
+	configurator := extension.GetConfigurator(defaults, url)
 
 	providerUrl, err := common.NewURL("jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&app.version=0.0.1&application=BDTService&category=providers&cluster=failover&dubbo=dubbo-provider-golang-2.6.0&environment=dev&group=&interface=com.ikurento.user.UserProvider&ip=10.32.20.124&loadbalance=random&methods.GetUser.loadbalance=random&methods.GetUser.retries=1&methods.GetUser.weight=0&module=dubbogo+user-info+server&name=BDTService&organization=ikurento.com&owner=ZX&pid=64225&retries=0&service.filter=echo&side=provider&timestamp=1562076628&version=&warmup=100")
 	assert.NoError(t, err)
-	configurator.Configure(&providerUrl)
+	configurator.Configure(providerUrl)
 	assert.Equal(t, failfast, providerUrl.GetParam(constant.CLUSTER_KEY, ""))
 
 }
diff --git a/config_center/dynamic_configuration.go b/config_center/dynamic_configuration.go
index cbf8e8c..69f8421 100644
--- a/config_center/dynamic_configuration.go
+++ b/config_center/dynamic_configuration.go
@@ -89,6 +89,6 @@
 }
 
 // GetRuleKey The format is '{interfaceName}:[version]:[group]'
-func GetRuleKey(url common.URL) string {
+func GetRuleKey(url *common.URL) string {
 	return url.ColonSeparatedKey()
 }
diff --git a/config_center/file/impl.go b/config_center/file/impl.go
index 9d82540..f29a33d 100644
--- a/config_center/file/impl.go
+++ b/config_center/file/impl.go
@@ -113,9 +113,8 @@
 		opt(tmpOpts)
 	}
 
-	path := fsdc.GetPath(key, tmpOpts.Group)
-
-	fsdc.cacheListener.AddListener(path, listener)
+	tmpPath := fsdc.GetPath(key, tmpOpts.Group)
+	fsdc.cacheListener.AddListener(tmpPath, listener)
 }
 
 // RemoveListener Remove listener
@@ -126,9 +125,8 @@
 		opt(tmpOpts)
 	}
 
-	path := fsdc.GetPath(key, tmpOpts.Group)
-
-	fsdc.cacheListener.RemoveListener(path, listener)
+	tmpPath := fsdc.GetPath(key, tmpOpts.Group)
+	fsdc.cacheListener.RemoveListener(tmpPath, listener)
 }
 
 // GetProperties get properties file
@@ -138,12 +136,11 @@
 		opt(tmpOpts)
 	}
 
-	path := fsdc.GetPath(key, tmpOpts.Group)
-	file, err := ioutil.ReadFile(path)
+	tmpPath := fsdc.GetPath(key, tmpOpts.Group)
+	file, err := ioutil.ReadFile(tmpPath)
 	if err != nil {
 		return "", perrors.WithStack(err)
 	}
-
 	return string(file), nil
 }
 
@@ -160,16 +157,16 @@
 
 // PublishConfig will publish the config with the (key, group, value) pair
 func (fsdc *FileSystemDynamicConfiguration) PublishConfig(key string, group string, value string) error {
-	path := fsdc.GetPath(key, group)
-	return fsdc.write2File(path, value)
+	tmpPath := fsdc.GetPath(key, group)
+	return fsdc.write2File(tmpPath, value)
 }
 
 // GetConfigKeysByGroup will return all keys with the group
 func (fsdc *FileSystemDynamicConfiguration) GetConfigKeysByGroup(group string) (*gxset.HashSet, error) {
-	path := fsdc.GetPath("", group)
+	tmpPath := fsdc.GetPath("", group)
 	r := gxset.NewSet()
 
-	fileInfo, _ := ioutil.ReadDir(path)
+	fileInfo, _ := ioutil.ReadDir(tmpPath)
 
 	for _, file := range fileInfo {
 		// list file
@@ -185,8 +182,8 @@
 
 // RemoveConfig will remove the config whit hte (key, group)
 func (fsdc *FileSystemDynamicConfiguration) RemoveConfig(key string, group string) error {
-	path := fsdc.GetPath(key, group)
-	_, err := fsdc.deleteDelay(path)
+	tmpPath := fsdc.GetPath(key, group)
+	_, err := fsdc.deleteDelay(tmpPath)
 	return err
 }
 
@@ -261,9 +258,9 @@
 // This uses an OS-specific method for discovering the home directory.
 // An error is returned if a home directory cannot be detected.
 func Home() (string, error) {
-	user, err := user.Current()
+	currentUser, err := user.Current()
 	if nil == err {
-		return user.HomeDir, nil
+		return currentUser.HomeDir, nil
 	}
 
 	// cross compile support
@@ -299,9 +296,9 @@
 
 func homeWindows() (string, error) {
 	drive := os.Getenv("HOMEDRIVE")
-	path := os.Getenv("HOMEPATH")
-	home := drive + path
-	if drive == "" || path == "" {
+	homePath := os.Getenv("HOMEPATH")
+	home := drive + homePath
+	if drive == "" || homePath == "" {
 		home = os.Getenv("USERPROFILE")
 	}
 	if home == "" {
diff --git a/config_center/file/impl_test.go b/config_center/file/impl_test.go
index 5889295..e912cb7 100644
--- a/config_center/file/impl_test.go
+++ b/config_center/file/impl_test.go
@@ -42,7 +42,7 @@
 	urlString := "registry://127.0.0.1:2181"
 	regurl, err := common.NewURL(urlString)
 	assert.NoError(t, err)
-	dc, err := extension.GetConfigCenterFactory("file").GetDynamicConfiguration(&regurl)
+	dc, err := extension.GetConfigCenterFactory("file").GetDynamicConfiguration(regurl)
 	assert.NoError(t, err)
 
 	return dc.(*FileSystemDynamicConfiguration), err
diff --git a/config_center/nacos/client.go b/config_center/nacos/client.go
index acfe260..f3942c0 100644
--- a/config_center/nacos/client.go
+++ b/config_center/nacos/client.go
@@ -122,7 +122,7 @@
 	return perrors.WithMessagef(nil, "newNacosClient(address:%+v)", url.PrimitiveURL)
 }
 
-func newNacosClient(name string, nacosAddrs []string, timeout time.Duration, url common.URL) (*NacosClient, error) {
+func newNacosClient(name string, nacosAddrs []string, timeout time.Duration, url *common.URL) (*NacosClient, error) {
 	var (
 		err error
 		n   *NacosClient
@@ -149,8 +149,8 @@
 	return n, nil
 }
 
-func initNacosConfigClient(nacosAddrs []string, timeout time.Duration, url common.URL) (config_client.IConfigClient, error) {
-	svrConfList := []nacosconst.ServerConfig{}
+func initNacosConfigClient(nacosAddrs []string, timeout time.Duration, url *common.URL) (config_client.IConfigClient, error) {
+	var svrConfList []nacosconst.ServerConfig
 	for _, nacosAddr := range nacosAddrs {
 		split := strings.Split(nacosAddr, ":")
 		port, err := strconv.ParseUint(split[1], 10, 64)
diff --git a/config_center/nacos/client_test.go b/config_center/nacos/client_test.go
index 01319f3..2ce3e37 100644
--- a/config_center/nacos/client_test.go
+++ b/config_center/nacos/client_test.go
@@ -36,7 +36,7 @@
 	nacosURL := strings.ReplaceAll(server.URL, "http", "registry")
 	registryUrl, _ := common.NewURL(nacosURL)
 	c := &nacosDynamicConfiguration{
-		url:  &registryUrl,
+		url:  registryUrl,
 		done: make(chan struct{}),
 	}
 	err := ValidateNacosClient(c, WithNacosName(nacosClientName))
@@ -59,7 +59,7 @@
 	nacosURL := "registry://" + server.Listener.Addr().String()
 	registryUrl, _ := common.NewURL(nacosURL)
 	c := &nacosDynamicConfiguration{
-		url:  &registryUrl,
+		url:  registryUrl,
 		done: make(chan struct{}),
 	}
 	var client *NacosClient
@@ -93,7 +93,7 @@
 	registryUrl, err := common.NewURL(nacosURL)
 	assert.NoError(t, err)
 	c := &nacosDynamicConfiguration{
-		url:  &registryUrl,
+		url:  registryUrl,
 		done: make(chan struct{}),
 	}
 	err = ValidateNacosClient(c, WithNacosName(nacosClientName))
diff --git a/config_center/nacos/impl.go b/config_center/nacos/impl.go
index be94b9a..7c67930 100644
--- a/config_center/nacos/impl.go
+++ b/config_center/nacos/impl.go
@@ -186,8 +186,8 @@
 }
 
 // GetUrl Get Url
-func (n *nacosDynamicConfiguration) GetUrl() common.URL {
-	return *n.url
+func (n *nacosDynamicConfiguration) GetUrl() *common.URL {
+	return n.url
 }
 
 // Destroy Destroy configuration instance
diff --git a/config_center/nacos/impl_test.go b/config_center/nacos/impl_test.go
index 88d200e..40efa5f 100644
--- a/config_center/nacos/impl_test.go
+++ b/config_center/nacos/impl_test.go
@@ -73,7 +73,7 @@
 	nacosURL := strings.ReplaceAll(server.URL, "http", "registry")
 	regurl, _ := common.NewURL(nacosURL)
 	factory := &nacosDynamicConfigurationFactory{}
-	nacosConfiguration, err := factory.GetDynamicConfiguration(&regurl)
+	nacosConfiguration, err := factory.GetDynamicConfiguration(regurl)
 	assert.NoError(t, err)
 
 	nacosConfiguration.SetParser(&parser.DefaultConfigurationParser{})
@@ -105,7 +105,7 @@
 
 	nacosURL := strings.ReplaceAll(ts.URL, "http", "registry")
 	regurl, _ := common.NewURL(nacosURL)
-	nacosConfiguration, err := newNacosDynamicConfiguration(&regurl)
+	nacosConfiguration, err := newNacosDynamicConfiguration(regurl)
 	assert.NoError(t, err)
 
 	nacosConfiguration.SetParser(&parser.DefaultConfigurationParser{})
diff --git a/config_center/parser/configuration_parser.go b/config_center/parser/configuration_parser.go
index f794221..b104d3d 100644
--- a/config_center/parser/configuration_parser.go
+++ b/config_center/parser/configuration_parser.go
@@ -144,14 +144,14 @@
 				if err != nil {
 					return nil, perrors.WithStack(err)
 				}
-				urls = append(urls, &url)
+				urls = append(urls, url)
 			}
 		} else {
 			url, err := common.NewURL(urlStr)
 			if err != nil {
 				return nil, perrors.WithStack(err)
 			}
-			urls = append(urls, &url)
+			urls = append(urls, url)
 		}
 	}
 	return urls, nil
@@ -192,7 +192,7 @@
 			if err != nil {
 				return nil, perrors.WithStack(err)
 			}
-			urls = append(urls, &url)
+			urls = append(urls, url)
 		}
 	}
 	return urls, nil
diff --git a/config_center/zookeeper/impl.go b/config_center/zookeeper/impl.go
index 485abcb..17812e9 100644
--- a/config_center/zookeeper/impl.go
+++ b/config_center/zookeeper/impl.go
@@ -183,8 +183,8 @@
 	return c.done
 }
 
-func (c *zookeeperDynamicConfiguration) GetUrl() common.URL {
-	return *c.url
+func (c *zookeeperDynamicConfiguration) GetUrl() *common.URL {
+	return c.url
 }
 
 func (c *zookeeperDynamicConfiguration) Destroy() {
diff --git a/config_center/zookeeper/impl_test.go b/config_center/zookeeper/impl_test.go
index ecc3527..d4a9de4 100644
--- a/config_center/zookeeper/impl_test.go
+++ b/config_center/zookeeper/impl_test.go
@@ -50,7 +50,7 @@
 	assert.NoError(t, err)
 	regurl.AddParam(constant.REGISTRY_TIMEOUT_KEY, "15s")
 	zkFactory := &zookeeperDynamicConfigurationFactory{}
-	reg, err := zkFactory.GetDynamicConfiguration(&regurl)
+	reg, err := zkFactory.GetDynamicConfiguration(regurl)
 	zreg, ok := reg.(*zookeeperDynamicConfiguration)
 	assert.True(t, ok)
 	assert.NoError(t, err)
diff --git a/filter/filter_impl/auth/consumer_sign.go b/filter/filter_impl/auth/consumer_sign.go
index 945cf3e..823db82 100644
--- a/filter/filter_impl/auth/consumer_sign.go
+++ b/filter/filter_impl/auth/consumer_sign.go
@@ -42,8 +42,8 @@
 	logger.Infof("invoking ConsumerSign filter.")
 	url := invoker.GetUrl()
 
-	err := doAuthWork(&url, func(authenticator filter.Authenticator) error {
-		return authenticator.Sign(invocation, &url)
+	err := doAuthWork(url, func(authenticator filter.Authenticator) error {
+		return authenticator.Sign(invocation, url)
 	})
 	if err != nil {
 		panic(fmt.Sprintf("Sign for invocation %s # %s failed", url.ServiceKey(), invocation.MethodName()))
diff --git a/filter/filter_impl/auth/default_authenticator_test.go b/filter/filter_impl/auth/default_authenticator_test.go
index 8b0fb6b..37c7e9d 100644
--- a/filter/filter_impl/auth/default_authenticator_test.go
+++ b/filter/filter_impl/auth/default_authenticator_test.go
@@ -48,7 +48,7 @@
 	}{"YUYU", 1}}
 	inv := invocation.NewRPCInvocation("test", parmas, nil)
 	requestTime := strconv.Itoa(int(time.Now().Unix() * 1000))
-	signature, _ := getSignature(&testurl, inv, secret, requestTime)
+	signature, _ := getSignature(testurl, inv, secret, requestTime)
 
 	var authenticator = &DefaultAuthenticator{}
 
@@ -58,7 +58,7 @@
 		constant.REQUEST_TIMESTAMP_KEY: requestTime,
 		constant.AK_KEY:                access,
 	})
-	err := authenticator.Authenticate(invcation, &testurl)
+	err := authenticator.Authenticate(invcation, testurl)
 	assert.Nil(t, err)
 	// modify the params
 	invcation = invocation.NewRPCInvocation("test", parmas[:1], map[string]interface{}{
@@ -67,7 +67,7 @@
 		constant.REQUEST_TIMESTAMP_KEY: requestTime,
 		constant.AK_KEY:                access,
 	})
-	err = authenticator.Authenticate(invcation, &testurl)
+	err = authenticator.Authenticate(invcation, testurl)
 	assert.NotNil(t, err)
 
 }
@@ -79,7 +79,7 @@
 	testurl.SetParam(constant.SECRET_ACCESS_KEY_KEY, "skey")
 	testurl.SetParam(constant.PARAMTER_SIGNATURE_ENABLE_KEY, "false")
 	inv := invocation.NewRPCInvocation("test", []interface{}{"OK"}, nil)
-	_ = authenticator.Sign(inv, &testurl)
+	_ = authenticator.Sign(inv, testurl)
 	assert.NotEqual(t, inv.AttachmentsByKey(constant.REQUEST_SIGNATURE_KEY, ""), "")
 	assert.NotEqual(t, inv.AttachmentsByKey(constant.CONSUMER, ""), "")
 	assert.NotEqual(t, inv.AttachmentsByKey(constant.REQUEST_TIMESTAMP_KEY, ""), "")
@@ -124,7 +124,7 @@
 	})
 	secret := "dubbo"
 	current := strconv.Itoa(int(time.Now().Unix() * 1000))
-	signature, _ := getSignature(&testurl, inv, secret, current)
+	signature, _ := getSignature(testurl, inv, secret, current)
 	requestString := fmt.Sprintf(constant.SIGNATURE_STRING_FORMAT,
 		testurl.ColonSeparatedKey(), inv.MethodName(), secret, current)
 	s, _ := SignWithParams(inv.Arguments(), requestString, secret)
@@ -138,7 +138,7 @@
 	inv := invocation.NewRPCInvocation("test", []interface{}{"OK"}, nil)
 	secret := "dubbo"
 	current := strconv.Itoa(int(time.Now().Unix() * 1000))
-	signature, _ := getSignature(&testurl, inv, secret, current)
+	signature, _ := getSignature(testurl, inv, secret, current)
 	requestString := fmt.Sprintf(constant.SIGNATURE_STRING_FORMAT,
 		testurl.ColonSeparatedKey(), inv.MethodName(), secret, current)
 	s := Sign(requestString, secret)
diff --git a/filter/filter_impl/auth/provider_auth.go b/filter/filter_impl/auth/provider_auth.go
index d5f5db3..774fdb2 100644
--- a/filter/filter_impl/auth/provider_auth.go
+++ b/filter/filter_impl/auth/provider_auth.go
@@ -42,8 +42,8 @@
 	logger.Infof("invoking providerAuth filter.")
 	url := invoker.GetUrl()
 
-	err := doAuthWork(&url, func(authenticator filter.Authenticator) error {
-		return authenticator.Authenticate(invocation, &url)
+	err := doAuthWork(url, func(authenticator filter.Authenticator) error {
+		return authenticator.Authenticate(invocation, url)
 	})
 	if err != nil {
 		logger.Infof("auth the request: %v occur exception, cause: %s", invocation, err.Error())
diff --git a/filter/filter_impl/auth/provider_auth_test.go b/filter/filter_impl/auth/provider_auth_test.go
index f6ebfcd..dc130b5 100644
--- a/filter/filter_impl/auth/provider_auth_test.go
+++ b/filter/filter_impl/auth/provider_auth_test.go
@@ -52,7 +52,7 @@
 	}
 	inv := invocation.NewRPCInvocation("test", parmas, nil)
 	requestTime := strconv.Itoa(int(time.Now().Unix() * 1000))
-	signature, _ := getSignature(&url, inv, secret, requestTime)
+	signature, _ := getSignature(url, inv, secret, requestTime)
 
 	inv = invocation.NewRPCInvocation("test", []interface{}{"OK"}, map[string]interface{}{
 		constant.REQUEST_SIGNATURE_KEY: signature,
diff --git a/filter/filter_impl/echo_filter_test.go b/filter/filter_impl/echo_filter_test.go
index b821a1a..f2ec81a 100644
--- a/filter/filter_impl/echo_filter_test.go
+++ b/filter/filter_impl/echo_filter_test.go
@@ -34,10 +34,10 @@
 
 func TestEchoFilterInvoke(t *testing.T) {
 	filter := GetFilter()
-	result := filter.Invoke(context.Background(), protocol.NewBaseInvoker(common.URL{}), invocation.NewRPCInvocation("$echo", []interface{}{"OK"}, nil))
+	result := filter.Invoke(context.Background(), protocol.NewBaseInvoker(&common.URL{}), invocation.NewRPCInvocation("$echo", []interface{}{"OK"}, nil))
 	assert.Equal(t, "OK", result.Result())
 
-	result = filter.Invoke(context.Background(), protocol.NewBaseInvoker(common.URL{}), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, nil))
+	result = filter.Invoke(context.Background(), protocol.NewBaseInvoker(&common.URL{}), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, nil))
 	assert.Nil(t, result.Error())
 	assert.Nil(t, result.Result())
 }
diff --git a/filter/filter_impl/execute_limit_filter_test.go b/filter/filter_impl/execute_limit_filter_test.go
index 953f5e1..2aebcaa 100644
--- a/filter/filter_impl/execute_limit_filter_test.go
+++ b/filter/filter_impl/execute_limit_filter_test.go
@@ -44,7 +44,7 @@
 
 	limitFilter := GetExecuteLimitFilter()
 
-	result := limitFilter.Invoke(context.Background(), protocol.NewBaseInvoker(*invokeUrl), invoc)
+	result := limitFilter.Invoke(context.Background(), protocol.NewBaseInvoker(invokeUrl), invoc)
 	assert.NotNil(t, result)
 	assert.Nil(t, result.Error())
 }
@@ -61,7 +61,7 @@
 
 	limitFilter := GetExecuteLimitFilter()
 
-	result := limitFilter.Invoke(context.Background(), protocol.NewBaseInvoker(*invokeUrl), invoc)
+	result := limitFilter.Invoke(context.Background(), protocol.NewBaseInvoker(invokeUrl), invoc)
 	assert.NotNil(t, result)
 	assert.Nil(t, result.Error())
 }
@@ -78,7 +78,7 @@
 
 	limitFilter := GetExecuteLimitFilter()
 
-	result := limitFilter.Invoke(context.Background(), protocol.NewBaseInvoker(*invokeUrl), invoc)
+	result := limitFilter.Invoke(context.Background(), protocol.NewBaseInvoker(invokeUrl), invoc)
 	assert.NotNil(t, result)
 	assert.Nil(t, result.Error())
 }
diff --git a/filter/filter_impl/graceful_shutdown_filter_test.go b/filter/filter_impl/graceful_shutdown_filter_test.go
index 220ef6f..447a557 100644
--- a/filter/filter_impl/graceful_shutdown_filter_test.go
+++ b/filter/filter_impl/graceful_shutdown_filter_test.go
@@ -54,7 +54,7 @@
 	assert.Equal(t, extension.GetRejectedExecutionHandler(constant.DEFAULT_KEY),
 		shutdownFilter.getRejectHandler())
 
-	result := shutdownFilter.Invoke(context.Background(), protocol.NewBaseInvoker(*invokeUrl), invoc)
+	result := shutdownFilter.Invoke(context.Background(), protocol.NewBaseInvoker(invokeUrl), invoc)
 	assert.NotNil(t, result)
 	assert.Nil(t, result.Error())
 
@@ -65,7 +65,7 @@
 	shutdownFilter.shutdownConfig = providerConfig.ShutdownConfig
 
 	assert.True(t, shutdownFilter.rejectNewRequest())
-	result = shutdownFilter.OnResponse(nil, nil, protocol.NewBaseInvoker(*invokeUrl), invoc)
+	result = shutdownFilter.OnResponse(nil, nil, protocol.NewBaseInvoker(invokeUrl), invoc)
 
 	rejectHandler := &common2.OnlyLogRejectedExecutionHandler{}
 	extension.SetRejectedExecutionHandler("mock", func() filter.RejectedExecutionHandler {
diff --git a/filter/filter_impl/hystrix_filter_test.go b/filter/filter_impl/hystrix_filter_test.go
index eebbae5..4973ce7 100644
--- a/filter/filter_impl/hystrix_filter_test.go
+++ b/filter/filter_impl/hystrix_filter_test.go
@@ -18,6 +18,7 @@
 
 import (
 	"context"
+	"fmt"
 	"regexp"
 	"testing"
 )
@@ -29,6 +30,8 @@
 )
 
 import (
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/invocation"
 )
@@ -147,7 +150,11 @@
 
 func TestHystrixFilterInvokeSuccess(t *testing.T) {
 	hf := &HystrixFilter{}
-	result := hf.Invoke(context.Background(), &testMockSuccessInvoker{}, &invocation.RPCInvocation{})
+	testUrl, err := common.NewURL(
+		fmt.Sprintf("dubbo://%s:%d/com.ikurento.user.UserProvider", constant.LOCAL_HOST_VALUE, constant.DEFAULT_PORT))
+	assert.NoError(t, err)
+	testInvoker := testMockSuccessInvoker{*protocol.NewBaseInvoker(testUrl)}
+	result := hf.Invoke(context.Background(), &testInvoker, &invocation.RPCInvocation{})
 	assert.NotNil(t, result)
 	assert.NoError(t, result.Error())
 	assert.NotNil(t, result.Result())
@@ -155,7 +162,11 @@
 
 func TestHystrixFilterInvokeFail(t *testing.T) {
 	hf := &HystrixFilter{}
-	result := hf.Invoke(context.Background(), &testMockFailInvoker{}, &invocation.RPCInvocation{})
+	testUrl, err := common.NewURL(
+		fmt.Sprintf("dubbo://%s:%d/com.ikurento.user.UserProvider", constant.LOCAL_HOST_VALUE, constant.DEFAULT_PORT))
+	assert.NoError(t, err)
+	testInvoker := testMockFailInvoker{*protocol.NewBaseInvoker(testUrl)}
+	result := hf.Invoke(context.Background(), &testInvoker, &invocation.RPCInvocation{})
 	assert.NotNil(t, result)
 	assert.Error(t, result.Error())
 }
@@ -167,7 +178,11 @@
 	resChan := make(chan protocol.Result, 50)
 	for i := 0; i < 50; i++ {
 		go func() {
-			result := hf.Invoke(context.Background(), &testMockFailInvoker{}, &invocation.RPCInvocation{})
+			testUrl, err := common.NewURL(
+				fmt.Sprintf("dubbo://%s:%d/com.ikurento.user.UserProvider", constant.LOCAL_HOST_VALUE, constant.DEFAULT_PORT))
+			assert.NoError(t, err)
+			testInvoker := testMockSuccessInvoker{*protocol.NewBaseInvoker(testUrl)}
+			result := hf.Invoke(context.Background(), &testInvoker, &invocation.RPCInvocation{})
 			resChan <- result
 		}()
 	}
@@ -192,7 +207,11 @@
 	resChan := make(chan protocol.Result, 50)
 	for i := 0; i < 50; i++ {
 		go func() {
-			result := hf.Invoke(context.Background(), &testMockFailInvoker{}, &invocation.RPCInvocation{})
+			testUrl, err := common.NewURL(
+				fmt.Sprintf("dubbo://%s:%d/com.ikurento.user.UserProvider", constant.LOCAL_HOST_VALUE, constant.DEFAULT_PORT))
+			assert.NoError(t, err)
+			testInvoker := testMockSuccessInvoker{*protocol.NewBaseInvoker(testUrl)}
+			result := hf.Invoke(context.Background(), &testInvoker, &invocation.RPCInvocation{})
 			resChan <- result
 		}()
 	}
diff --git a/filter/filter_impl/sentinel_filter.go b/filter/filter_impl/sentinel_filter.go
index 86d6460..aec814d 100644
--- a/filter/filter_impl/sentinel_filter.go
+++ b/filter/filter_impl/sentinel_filter.go
@@ -229,7 +229,7 @@
 	return true
 }
 
-func getColonSeparatedKey(url common.URL) string {
+func getColonSeparatedKey(url *common.URL) string {
 	return fmt.Sprintf("%s:%s:%s",
 		url.Service(),
 		url.GetParam(constant.GROUP_KEY, ""),
diff --git a/filter/filter_impl/token_filter_test.go b/filter/filter_impl/token_filter_test.go
index cd1bba3..9ef8c98 100644
--- a/filter/filter_impl/token_filter_test.go
+++ b/filter/filter_impl/token_filter_test.go
@@ -43,7 +43,7 @@
 	attch := make(map[string]interface{}, 0)
 	attch[constant.TOKEN_KEY] = "ori_key"
 	result := filter.Invoke(context.Background(),
-		protocol.NewBaseInvoker(*url),
+		protocol.NewBaseInvoker(url),
 		invocation.NewRPCInvocation("MethodName",
 			[]interface{}{"OK"}, attch))
 	assert.Nil(t, result.Error())
@@ -56,7 +56,7 @@
 	testUrl := common.URL{}
 	attch := make(map[string]interface{}, 0)
 	attch[constant.TOKEN_KEY] = "ori_key"
-	result := filter.Invoke(context.Background(), protocol.NewBaseInvoker(testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
+	result := filter.Invoke(context.Background(), protocol.NewBaseInvoker(&testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
 	assert.Nil(t, result.Error())
 	assert.Nil(t, result.Result())
 }
@@ -68,7 +68,7 @@
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.TOKEN_KEY, "ori_key"))
 	attch := make(map[string]interface{}, 0)
-	result := filter.Invoke(context.Background(), protocol.NewBaseInvoker(*testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
+	result := filter.Invoke(context.Background(), protocol.NewBaseInvoker(testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
 	assert.NotNil(t, result.Error())
 }
 
@@ -81,6 +81,6 @@
 	attch := make(map[string]interface{}, 0)
 	attch[constant.TOKEN_KEY] = "err_key"
 	result := filter.Invoke(context.Background(),
-		protocol.NewBaseInvoker(*testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
+		protocol.NewBaseInvoker(testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
 	assert.NotNil(t, result.Error())
 }
diff --git a/filter/filter_impl/tps/tps_limiter_method_service.go b/filter/filter_impl/tps/tps_limiter_method_service.go
index 5761579..f0c2764 100644
--- a/filter/filter_impl/tps/tps_limiter_method_service.go
+++ b/filter/filter_impl/tps/tps_limiter_method_service.go
@@ -120,7 +120,7 @@
 // The key point is how to keep thread-safe
 // This implementation use concurrent map + loadOrStore to make implementation thread-safe
 // You can image that even multiple threads create limiter, but only one could store the limiter into tpsState
-func (limiter MethodServiceTpsLimiterImpl) IsAllowable(url common.URL, invocation protocol.Invocation) bool {
+func (limiter MethodServiceTpsLimiterImpl) IsAllowable(url *common.URL, invocation protocol.Invocation) bool {
 
 	methodConfigPrefix := "methods." + invocation.MethodName() + "."
 
@@ -176,7 +176,7 @@
 // If we can convert the methodLevelConfig to int64, return;
 // Or, we will try to look up server-level configuration and then convert it to int64
 func getLimitConfig(methodLevelConfig string,
-	url common.URL,
+	url *common.URL,
 	invocation protocol.Invocation,
 	configKey string,
 	defaultVal string) int64 {
diff --git a/filter/filter_impl/tps/tps_limiter_method_service_test.go b/filter/filter_impl/tps/tps_limiter_method_service_test.go
index 61f28e4..7435d9b 100644
--- a/filter/filter_impl/tps/tps_limiter_method_service_test.go
+++ b/filter/filter_impl/tps/tps_limiter_method_service_test.go
@@ -57,7 +57,7 @@
 	})
 
 	limiter := GetMethodServiceTpsLimiter()
-	result := limiter.IsAllowable(*invokeUrl, invoc)
+	result := limiter.IsAllowable(invokeUrl, invoc)
 	assert.True(t, result)
 }
 
@@ -73,7 +73,7 @@
 		common.WithParamsValue(constant.TPS_LIMIT_RATE_KEY, ""))
 
 	limiter := GetMethodServiceTpsLimiter()
-	result := limiter.IsAllowable(*invokeUrl, invoc)
+	result := limiter.IsAllowable(invokeUrl, invoc)
 	assert.True(t, result)
 }
 
@@ -106,7 +106,7 @@
 	})
 
 	limiter := GetMethodServiceTpsLimiter()
-	result := limiter.IsAllowable(*invokeUrl, invoc)
+	result := limiter.IsAllowable(invokeUrl, invoc)
 	assert.True(t, result)
 }
 
@@ -136,7 +136,7 @@
 	})
 
 	limiter := GetMethodServiceTpsLimiter()
-	result := limiter.IsAllowable(*invokeUrl, invoc)
+	result := limiter.IsAllowable(invokeUrl, invoc)
 	assert.True(t, result)
 }
 
diff --git a/filter/filter_impl/tps/tps_limiter_mock.go b/filter/filter_impl/tps/tps_limiter_mock.go
index b49084f..34c2790 100644
--- a/filter/filter_impl/tps/tps_limiter_mock.go
+++ b/filter/filter_impl/tps/tps_limiter_mock.go
@@ -58,7 +58,7 @@
 }
 
 // IsAllowable mocks base method
-func (m *MockTpsLimiter) IsAllowable(arg0 common.URL, arg1 protocol.Invocation) bool {
+func (m *MockTpsLimiter) IsAllowable(arg0 *common.URL, arg1 protocol.Invocation) bool {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "IsAllowable", arg0, arg1)
 	ret0, _ := ret[0].(bool)
diff --git a/filter/filter_impl/tps_limit_filter_test.go b/filter/filter_impl/tps_limit_filter_test.go
index da0fc48..88e7781 100644
--- a/filter/filter_impl/tps_limit_filter_test.go
+++ b/filter/filter_impl/tps_limit_filter_test.go
@@ -47,7 +47,7 @@
 	attch := make(map[string]interface{}, 0)
 
 	result := tpsFilter.Invoke(context.Background(),
-		protocol.NewBaseInvoker(*invokeUrl),
+		protocol.NewBaseInvoker(invokeUrl),
 		invocation.NewRPCInvocation("MethodName",
 			[]interface{}{"OK"}, attch))
 	assert.Nil(t, result.Error())
@@ -71,7 +71,7 @@
 	attch := make(map[string]interface{}, 0)
 
 	result := tpsFilter.Invoke(context.Background(),
-		protocol.NewBaseInvoker(*invokeUrl),
+		protocol.NewBaseInvoker(invokeUrl),
 		invocation.NewRPCInvocation("MethodName",
 			[]interface{}{"OK"}, attch))
 	assert.Nil(t, result.Error())
@@ -102,7 +102,9 @@
 	attch := make(map[string]interface{}, 0)
 
 	result := tpsFilter.Invoke(context.Background(),
-		protocol.NewBaseInvoker(*invokeUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
+		protocol.NewBaseInvoker(
+
+			invokeUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
 	assert.Nil(t, result.Error())
 	assert.Nil(t, result.Result())
 }
diff --git a/filter/handler/rejected_execution_handler_mock.go b/filter/handler/rejected_execution_handler_mock.go
index bff5476..5f2f458 100644
--- a/filter/handler/rejected_execution_handler_mock.go
+++ b/filter/handler/rejected_execution_handler_mock.go
@@ -58,7 +58,7 @@
 }
 
 // RejectedExecution mocks base method
-func (m *MockRejectedExecutionHandler) RejectedExecution(url common.URL, invocation protocol.Invocation) protocol.Result {
+func (m *MockRejectedExecutionHandler) RejectedExecution(url *common.URL, invocation protocol.Invocation) protocol.Result {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "RejectedExecution", url, invocation)
 	ret0, _ := ret[0].(protocol.Result)
diff --git a/filter/handler/rejected_execution_handler_only_log.go b/filter/handler/rejected_execution_handler_only_log.go
index 52ac176..5242b5b 100644
--- a/filter/handler/rejected_execution_handler_only_log.go
+++ b/filter/handler/rejected_execution_handler_only_log.go
@@ -63,7 +63,7 @@
 }
 
 // RejectedExecution will do nothing, it only log the invocation.
-func (handler *OnlyLogRejectedExecutionHandler) RejectedExecution(url common.URL,
+func (handler *OnlyLogRejectedExecutionHandler) RejectedExecution(url *common.URL,
 	_ protocol.Invocation) protocol.Result {
 
 	logger.Errorf("The invocation was rejected. url: %s", url.String())
diff --git a/filter/handler/rejected_execution_handler_only_log_test.go b/filter/handler/rejected_execution_handler_only_log_test.go
index 409f09f..7aa4aff 100644
--- a/filter/handler/rejected_execution_handler_only_log_test.go
+++ b/filter/handler/rejected_execution_handler_only_log_test.go
@@ -31,5 +31,5 @@
 	invokeUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.INTERFACE_KEY, "methodName"))
-	handler.RejectedExecution(*invokeUrl, nil)
+	handler.RejectedExecution(invokeUrl, nil)
 }
diff --git a/filter/rejected_execution_handler.go b/filter/rejected_execution_handler.go
index 3d1e1c1..73ac3d3 100644
--- a/filter/rejected_execution_handler.go
+++ b/filter/rejected_execution_handler.go
@@ -33,5 +33,5 @@
 type RejectedExecutionHandler interface {
 
 	// RejectedExecution will be called if the invocation was rejected by some component.
-	RejectedExecution(url common.URL, invocation protocol.Invocation) protocol.Result
+	RejectedExecution(url *common.URL, invocation protocol.Invocation) protocol.Result
 }
diff --git a/filter/tps_limiter.go b/filter/tps_limiter.go
index 8385d7b..6f2466c 100644
--- a/filter/tps_limiter.go
+++ b/filter/tps_limiter.go
@@ -35,5 +35,5 @@
  */
 type TpsLimiter interface {
 	// IsAllowable will check whether this invocation should be enabled for further process
-	IsAllowable(common.URL, protocol.Invocation) bool
+	IsAllowable(*common.URL, protocol.Invocation) bool
 }
diff --git a/metadata/definition/definition.go b/metadata/definition/definition.go
index dbbc0c8..a032313 100644
--- a/metadata/definition/definition.go
+++ b/metadata/definition/definition.go
@@ -93,7 +93,7 @@
 }
 
 // BuildServiceDefinition can build service definition which will be used to describe a service
-func BuildServiceDefinition(service common.Service, url common.URL) *ServiceDefinition {
+func BuildServiceDefinition(service common.Service, url *common.URL) *ServiceDefinition {
 	sd := &ServiceDefinition{}
 	sd.CanonicalName = url.Service()
 
diff --git a/metadata/identifier/service_metadata_identifier.go b/metadata/identifier/service_metadata_identifier.go
index b9e6596..3035cf3 100644
--- a/metadata/identifier/service_metadata_identifier.go
+++ b/metadata/identifier/service_metadata_identifier.go
@@ -32,7 +32,7 @@
 // NewServiceMetadataIdentifier create instance.
 // The ServiceInterface is the @url.Service()
 // other parameters are read from @url
-func NewServiceMetadataIdentifier(url common.URL) *ServiceMetadataIdentifier {
+func NewServiceMetadataIdentifier(url *common.URL) *ServiceMetadataIdentifier {
 	return &ServiceMetadataIdentifier{
 		BaseMetadataIdentifier: BaseMetadataIdentifier{
 			ServiceInterface: url.Service(),
diff --git a/metadata/report/consul/report.go b/metadata/report/consul/report.go
index eb2bdc2..e211f7f 100644
--- a/metadata/report/consul/report.go
+++ b/metadata/report/consul/report.go
@@ -61,7 +61,7 @@
 }
 
 // SaveServiceMetadata saves the metadata.
-func (m *consulMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url common.URL) error {
+func (m *consulMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url *common.URL) error {
 	kv := &consul.KVPair{Key: metadataIdentifier.GetIdentifierKey(), Value: []byte(url.String())}
 	_, err := m.client.KV().Put(kv, nil)
 	return err
diff --git a/metadata/report/consul/report_test.go b/metadata/report/consul/report_test.go
index e07a742..13d0c41 100644
--- a/metadata/report/consul/report_test.go
+++ b/metadata/report/consul/report_test.go
@@ -100,7 +100,7 @@
 	assert.NoError(suite.t, err)
 }
 
-func (suite *consulMetadataReportTestSuite) testSaveServiceMetadata(url common.URL) {
+func (suite *consulMetadataReportTestSuite) testSaveServiceMetadata(url *common.URL) {
 	serviceMi := newServiceMetadataIdentifier("provider")
 	err := suite.m.SaveServiceMetadata(serviceMi, url)
 	assert.NoError(suite.t, err)
@@ -119,7 +119,7 @@
 	assert.NoError(suite.t, err)
 }
 
-func (suite *consulMetadataReportTestSuite) testSaveSubscribedData(url common.URL) {
+func (suite *consulMetadataReportTestSuite) testSaveSubscribedData(url *common.URL) {
 	subscribeMi := newSubscribeMetadataIdentifier("provider")
 	urls := []string{url.String()}
 	bytes, _ := json.Marshal(urls)
@@ -152,10 +152,10 @@
 	suite := newConsulMetadataReportTestSuite(t, m)
 	suite.testStoreProviderMetadata()
 	suite.testStoreConsumerMetadata()
-	suite.testSaveServiceMetadata(*url)
+	suite.testSaveServiceMetadata(url)
 	suite.testGetExportedURLs()
 	suite.testRemoveServiceMetadata()
-	suite.testSaveSubscribedData(*url)
+	suite.testSaveSubscribedData(url)
 	suite.testGetSubscribedURLs()
 	suite.testGetServiceDefinition()
 }
diff --git a/metadata/report/delegate/delegate_report.go b/metadata/report/delegate/delegate_report.go
index cdd29ab..836a8f9 100644
--- a/metadata/report/delegate/delegate_report.go
+++ b/metadata/report/delegate/delegate_report.go
@@ -94,7 +94,7 @@
 
 // MetadataReport is a absolute delegate for MetadataReport
 type MetadataReport struct {
-	reportUrl           common.URL
+	reportUrl           *common.URL
 	syncReport          bool
 	metadataReportRetry *metadataReportRetry
 
@@ -215,7 +215,7 @@
 }
 
 // SaveServiceMetadata will delegate to call remote metadata's sdk to save service metadata
-func (mr *MetadataReport) SaveServiceMetadata(identifier *identifier.ServiceMetadataIdentifier, url common.URL) error {
+func (mr *MetadataReport) SaveServiceMetadata(identifier *identifier.ServiceMetadataIdentifier, url *common.URL) error {
 	report := instance.GetMetadataReportInstance()
 	if mr.syncReport {
 		return report.SaveServiceMetadata(identifier, url)
@@ -241,7 +241,7 @@
 }
 
 // SaveSubscribedData will delegate to call remote metadata's sdk to save subscribed data
-func (mr *MetadataReport) SaveSubscribedData(identifier *identifier.SubscriberMetadataIdentifier, urls []common.URL) error {
+func (mr *MetadataReport) SaveSubscribedData(identifier *identifier.SubscriberMetadataIdentifier, urls []*common.URL) error {
 	urlStrList := make([]string, 0, len(urls))
 	for _, url := range urls {
 		urlStrList = append(urlStrList, url.String())
@@ -260,13 +260,13 @@
 }
 
 // GetSubscribedURLs will delegate to call remote metadata's sdk to get subscribed urls
-func (MetadataReport) GetSubscribedURLs(identifier *identifier.SubscriberMetadataIdentifier) ([]string, error) {
+func (mr *MetadataReport) GetSubscribedURLs(identifier *identifier.SubscriberMetadataIdentifier) ([]string, error) {
 	report := instance.GetMetadataReportInstance()
 	return report.GetSubscribedURLs(identifier)
 }
 
 // GetServiceDefinition will delegate to call remote metadata's sdk to get service definitions
-func (MetadataReport) GetServiceDefinition(identifier *identifier.MetadataIdentifier) (string, error) {
+func (mr *MetadataReport) GetServiceDefinition(identifier *identifier.MetadataIdentifier) (string, error) {
 	report := instance.GetMetadataReportInstance()
 	return report.GetServiceDefinition(identifier)
 }
diff --git a/metadata/report/etcd/report.go b/metadata/report/etcd/report.go
index 097835c..1939b91 100644
--- a/metadata/report/etcd/report.go
+++ b/metadata/report/etcd/report.go
@@ -63,7 +63,7 @@
 
 // SaveServiceMetadata will store the metadata
 // metadata including the basic info of the server, service info, and other user custom info
-func (e *etcdMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url common.URL) error {
+func (e *etcdMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url *common.URL) error {
 	key := e.getNodeKey(metadataIdentifier)
 	return e.client.Create(key, url.String())
 }
diff --git a/metadata/report/etcd/report_test.go b/metadata/report/etcd/report_test.go
index 5dd8780..28c0486 100644
--- a/metadata/report/etcd/report_test.go
+++ b/metadata/report/etcd/report_test.go
@@ -60,7 +60,7 @@
 		t.Fatal(err)
 	}
 	metadataReportFactory := &etcdMetadataReportFactory{}
-	metadataReport := metadataReportFactory.CreateMetadataReport(&url)
+	metadataReport := metadataReportFactory.CreateMetadataReport(url)
 	assert.NotNil(t, metadataReport)
 	e.Close()
 }
@@ -72,7 +72,7 @@
 		t.Fatal(err)
 	}
 	metadataReportFactory := &etcdMetadataReportFactory{}
-	metadataReport := metadataReportFactory.CreateMetadataReport(&url)
+	metadataReport := metadataReportFactory.CreateMetadataReport(url)
 	assert.NotNil(t, metadataReport)
 
 	err = metadataReport.StoreConsumerMetadata(newMetadataIdentifier("consumer"), "consumer metadata")
diff --git a/metadata/report/nacos/report.go b/metadata/report/nacos/report.go
index d69913b..42e9859 100644
--- a/metadata/report/nacos/report.go
+++ b/metadata/report/nacos/report.go
@@ -69,7 +69,7 @@
 }
 
 // SaveServiceMetadata saves the metadata.
-func (n *nacosMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url common.URL) error {
+func (n *nacosMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url *common.URL) error {
 	return n.storeMetadata(vo.ConfigParam{
 		DataId:  metadataIdentifier.GetIdentifierKey(),
 		Group:   metadataIdentifier.Group,
diff --git a/metadata/report/nacos/report_test.go b/metadata/report/nacos/report_test.go
index be01eb2..b40b438 100644
--- a/metadata/report/nacos/report_test.go
+++ b/metadata/report/nacos/report_test.go
@@ -111,6 +111,6 @@
 
 func newTestReport() report.MetadataReport {
 	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
-	res := extension.GetMetadataReportFactory("nacos").CreateMetadataReport(&regurl)
+	res := extension.GetMetadataReportFactory("nacos").CreateMetadataReport(regurl)
 	return res
 }
diff --git a/metadata/report/report.go b/metadata/report/report.go
index 62a9055..dcb4142 100644
--- a/metadata/report/report.go
+++ b/metadata/report/report.go
@@ -38,7 +38,7 @@
 	// SaveServiceMetadata saves the metadata.
 	// Metadata includes the basic info of the server,
 	// service info, and other user custom info.
-	SaveServiceMetadata(*identifier.ServiceMetadataIdentifier, common.URL) error
+	SaveServiceMetadata(*identifier.ServiceMetadataIdentifier, *common.URL) error
 
 	// RemoveServiceMetadata removes the metadata.
 	RemoveServiceMetadata(*identifier.ServiceMetadataIdentifier) error
diff --git a/metadata/report/zookeeper/report.go b/metadata/report/zookeeper/report.go
index 8f46bb0..5d5e740 100644
--- a/metadata/report/zookeeper/report.go
+++ b/metadata/report/zookeeper/report.go
@@ -63,7 +63,7 @@
 }
 
 // SaveServiceMetadata saves the metadata.
-func (m *zookeeperMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url common.URL) error {
+func (m *zookeeperMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url *common.URL) error {
 	k := m.rootDir + metadataIdentifier.GetFilePathKey()
 	return m.client.CreateWithValue(k, []byte(url.String()))
 }
diff --git a/metadata/report/zookeeper/report_test.go b/metadata/report/zookeeper/report_test.go
index a1e46e2..adedaaa 100644
--- a/metadata/report/zookeeper/report_test.go
+++ b/metadata/report/zookeeper/report_test.go
@@ -100,7 +100,7 @@
 	assert.NoError(suite.t, err)
 }
 
-func (suite *zookeeperMetadataReportTestSuite) testSaveServiceMetadata(url common.URL) {
+func (suite *zookeeperMetadataReportTestSuite) testSaveServiceMetadata(url *common.URL) {
 	serviceMi := newServiceMetadataIdentifier("provider")
 	err := suite.m.SaveServiceMetadata(serviceMi, url)
 	assert.NoError(suite.t, err)
@@ -119,7 +119,7 @@
 	assert.NoError(suite.t, err)
 }
 
-func (suite *zookeeperMetadataReportTestSuite) testSaveSubscribedData(url common.URL) {
+func (suite *zookeeperMetadataReportTestSuite) testSaveSubscribedData(url *common.URL) {
 	subscribeMi := newSubscribeMetadataIdentifier("provider")
 	urls := []string{url.String()}
 	bytes, _ := json.Marshal(urls)
@@ -153,10 +153,10 @@
 	suite := newZookeeperMetadataReportTestSuite(t, m)
 	suite.testStoreProviderMetadata()
 	suite.testStoreConsumerMetadata()
-	suite.testSaveServiceMetadata(*url)
+	suite.testSaveServiceMetadata(url)
 	suite.testGetExportedURLs()
 	suite.testRemoveServiceMetadata()
-	suite.testSaveSubscribedData(*url)
+	suite.testSaveSubscribedData(url)
 	suite.testGetSubscribedURLs()
 	suite.testGetServiceDefinition()
 }
diff --git a/metadata/service/exporter/configurable/exporter_test.go b/metadata/service/exporter/configurable/exporter_test.go
index ceda255..2a5e646 100644
--- a/metadata/service/exporter/configurable/exporter_test.go
+++ b/metadata/service/exporter/configurable/exporter_test.go
@@ -65,9 +65,9 @@
 	t.Run("configurableExporter", func(t *testing.T) {
 		registryURL, _ := common.NewURL("service-discovery://localhost:12345")
 		subURL, _ := common.NewURL("dubbo://localhost:20003")
-		registryURL.SubURL = &subURL
+		registryURL.SubURL = subURL
 		assert.Equal(t, false, exported.IsExported())
-		assert.NoError(t, exported.Export(&registryURL))
+		assert.NoError(t, exported.Export(registryURL))
 		assert.Equal(t, true, exported.IsExported())
 		assert.Regexp(t, "dubbo://:20003/MetadataService*", exported.GetExportedURLs()[0].String())
 		exported.Unexport()
diff --git a/metadata/service/inmemory/metadata_service_proxy_factory.go b/metadata/service/inmemory/metadata_service_proxy_factory.go
index 1f8eeaa..becd804 100644
--- a/metadata/service/inmemory/metadata_service_proxy_factory.go
+++ b/metadata/service/inmemory/metadata_service_proxy_factory.go
@@ -50,7 +50,7 @@
 
 	u := urls[0]
 	p := extension.GetProtocol(u.Protocol)
-	invoker := p.Refer(*u)
+	invoker := p.Refer(u)
 	return &MetadataServiceProxy{
 		invkr: invoker,
 	}
diff --git a/metadata/service/inmemory/metadata_service_proxy_factory_test.go b/metadata/service/inmemory/metadata_service_proxy_factory_test.go
index 96020e1..f5e519c 100644
--- a/metadata/service/inmemory/metadata_service_proxy_factory_test.go
+++ b/metadata/service/inmemory/metadata_service_proxy_factory_test.go
@@ -66,11 +66,11 @@
 type mockProtocol struct {
 }
 
-func (m mockProtocol) Export(invoker protocol.Invoker) protocol.Exporter {
+func (m mockProtocol) Export(protocol.Invoker) protocol.Exporter {
 	panic("implement me")
 }
 
-func (m mockProtocol) Refer(url common.URL) protocol.Invoker {
+func (m mockProtocol) Refer(*common.URL) protocol.Invoker {
 	return &mockInvoker{}
 }
 
@@ -81,7 +81,7 @@
 type mockInvoker struct {
 }
 
-func (m *mockInvoker) GetUrl() common.URL {
+func (m *mockInvoker) GetUrl() *common.URL {
 	panic("implement me")
 }
 
diff --git a/metadata/service/inmemory/service.go b/metadata/service/inmemory/service.go
index 8269e69..d9cbd54 100644
--- a/metadata/service/inmemory/service.go
+++ b/metadata/service/inmemory/service.go
@@ -22,7 +22,6 @@
 )
 
 import (
-	cm "github.com/Workiva/go-datastructures/common"
 	"github.com/Workiva/go-datastructures/slice/skip"
 )
 
@@ -75,23 +74,6 @@
 	return metadataServiceInstance, nil
 }
 
-// Comparator is defined as Comparator for skip list to compare the URL
-type Comparator common.URL
-
-// Compare is defined as Comparator for skip list to compare the URL
-func (c Comparator) Compare(comp cm.Comparator) int {
-	a := common.URL(c).String()
-	b := common.URL(comp.(Comparator)).String()
-	switch {
-	case a > b:
-		return 1
-	case a < b:
-		return -1
-	default:
-		return 0
-	}
-}
-
 // addURL will add URL in memory
 func (mts *MetadataService) addURL(targetMap *sync.Map, url *common.URL) bool {
 	var (
@@ -101,7 +83,7 @@
 	logger.Debug(url.ServiceKey())
 	if urlSet, loaded = targetMap.LoadOrStore(url.ServiceKey(), skip.New(uint64(0))); loaded {
 		mts.lock.RLock()
-		wantedUrl := urlSet.(*skip.SkipList).Get(Comparator(*url))
+		wantedUrl := urlSet.(*skip.SkipList).Get(url)
 		if len(wantedUrl) > 0 && wantedUrl[0] != nil {
 			mts.lock.RUnlock()
 			return false
@@ -110,12 +92,12 @@
 	}
 	mts.lock.Lock()
 	// double chk
-	wantedUrl := urlSet.(*skip.SkipList).Get(Comparator(*url))
+	wantedUrl := urlSet.(*skip.SkipList).Get(url)
 	if len(wantedUrl) > 0 && wantedUrl[0] != nil {
 		mts.lock.Unlock()
 		return false
 	}
-	urlSet.(*skip.SkipList).Insert(Comparator(*url))
+	urlSet.(*skip.SkipList).Insert(url)
 	mts.lock.Unlock()
 	return true
 }
@@ -124,7 +106,7 @@
 func (mts *MetadataService) removeURL(targetMap *sync.Map, url *common.URL) {
 	if value, loaded := targetMap.Load(url.ServiceKey()); loaded {
 		mts.lock.Lock()
-		value.(*skip.SkipList).Delete(Comparator(*url))
+		value.(*skip.SkipList).Delete(url)
 		mts.lock.Unlock()
 		mts.lock.RLock()
 		defer mts.lock.RUnlock()
@@ -135,13 +117,13 @@
 }
 
 // getAllService can return all the exportedUrlString except for metadataService
-func (mts *MetadataService) getAllService(services *sync.Map) []common.URL {
+func (mts *MetadataService) getAllService(services *sync.Map) []*common.URL {
 	// using skip list to dedup and sorting
-	res := make([]common.URL, 0)
+	var res []*common.URL
 	services.Range(func(key, value interface{}) bool {
 		urls := value.(*skip.SkipList)
 		for i := uint64(0); i < urls.Len(); i++ {
-			url := common.URL(urls.ByPosition(i).(Comparator))
+			url := urls.ByPosition(i).(*common.URL)
 			if url.GetParam(constant.INTERFACE_KEY, url.Path) != constant.METADATA_SERVICE_NAME {
 				res = append(res, url)
 			}
@@ -153,13 +135,13 @@
 }
 
 // getSpecifiedService can return specified service url by serviceKey
-func (mts *MetadataService) getSpecifiedService(services *sync.Map, serviceKey string, protocol string) []common.URL {
-	res := make([]common.URL, 0)
+func (mts *MetadataService) getSpecifiedService(services *sync.Map, serviceKey string, protocol string) []*common.URL {
+	var res []*common.URL
 	serviceList, loaded := services.Load(serviceKey)
 	if loaded {
 		urls := serviceList.(*skip.SkipList)
 		for i := uint64(0); i < urls.Len(); i++ {
-			url := common.URL(urls.ByPosition(i).(Comparator))
+			url := urls.ByPosition(i).(*common.URL)
 			if len(protocol) == 0 || protocol == constant.ANY_VALUE || url.Protocol == protocol || url.GetParam(constant.PROTOCOL_KEY, "") == protocol {
 				res = append(res, url)
 			}
@@ -170,34 +152,34 @@
 }
 
 // ExportURL can store the in memory
-func (mts *MetadataService) ExportURL(url common.URL) (bool, error) {
-	return mts.addURL(mts.exportedServiceURLs, &url), nil
+func (mts *MetadataService) ExportURL(url *common.URL) (bool, error) {
+	return mts.addURL(mts.exportedServiceURLs, url), nil
 }
 
 // UnexportURL can remove the url store in memory
-func (mts *MetadataService) UnexportURL(url common.URL) error {
-	mts.removeURL(mts.exportedServiceURLs, &url)
+func (mts *MetadataService) UnexportURL(url *common.URL) error {
+	mts.removeURL(mts.exportedServiceURLs, url)
 	return nil
 }
 
 // SubscribeURL can store the in memory
-func (mts *MetadataService) SubscribeURL(url common.URL) (bool, error) {
-	return mts.addURL(mts.subscribedServiceURLs, &url), nil
+func (mts *MetadataService) SubscribeURL(url *common.URL) (bool, error) {
+	return mts.addURL(mts.subscribedServiceURLs, url), nil
 }
 
 // UnsubscribeURL can remove the url store in memory
-func (mts *MetadataService) UnsubscribeURL(url common.URL) error {
-	mts.removeURL(mts.subscribedServiceURLs, &url)
+func (mts *MetadataService) UnsubscribeURL(url *common.URL) error {
+	mts.removeURL(mts.subscribedServiceURLs, url)
 	return nil
 }
 
 // PublishServiceDefinition: publish url's service metadata info, and write into memory
-func (mts *MetadataService) PublishServiceDefinition(url common.URL) error {
+func (mts *MetadataService) PublishServiceDefinition(url *common.URL) error {
 	interfaceName := url.GetParam(constant.INTERFACE_KEY, "")
 	isGeneric := url.GetParamBool(constant.GENERIC_KEY, false)
 	if len(interfaceName) > 0 && !isGeneric {
-		service := common.ServiceMap.GetService(url.Protocol, url.GetParam(constant.BEAN_NAME_KEY, url.Service()))
-		sd := definition.BuildServiceDefinition(*service, url)
+		tmpService := common.ServiceMap.GetService(url.Protocol, url.GetParam(constant.BEAN_NAME_KEY, url.Service()))
+		sd := definition.BuildServiceDefinition(*tmpService, url)
 		data, err := sd.ToBytes()
 		if err != nil {
 			logger.Errorf("publishProvider getServiceDescriptor error. providerUrl:%v , error:%v ", url, err)
@@ -221,7 +203,7 @@
 }
 
 // GetSubscribedURLs get all subscribedUrl
-func (mts *MetadataService) GetSubscribedURLs() ([]common.URL, error) {
+func (mts *MetadataService) GetSubscribedURLs() ([]*common.URL, error) {
 	return mts.getAllService(mts.subscribedServiceURLs), nil
 }
 
@@ -239,7 +221,7 @@
 }
 
 // RefreshMetadata will always return true because it will be implement by remote service
-func (mts *MetadataService) RefreshMetadata(exportedRevision string, subscribedRevision string) (bool, error) {
+func (mts *MetadataService) RefreshMetadata(string, string) (bool, error) {
 	return true, nil
 }
 
diff --git a/metadata/service/inmemory/service_proxy.go b/metadata/service/inmemory/service_proxy.go
index e2b2968..7e14293 100644
--- a/metadata/service/inmemory/service_proxy.go
+++ b/metadata/service/inmemory/service_proxy.go
@@ -88,34 +88,34 @@
 	return "", nil
 }
 
-func (m *MetadataServiceProxy) ExportURL(url common.URL) (bool, error) {
+func (m *MetadataServiceProxy) ExportURL(url *common.URL) (bool, error) {
 	logger.Error("you should never invoke this implementation")
 	return false, nil
 }
 
-func (m *MetadataServiceProxy) UnexportURL(url common.URL) error {
+func (m *MetadataServiceProxy) UnexportURL(url *common.URL) error {
 	logger.Error("you should never invoke this implementation")
 	return nil
 }
 
-func (m *MetadataServiceProxy) SubscribeURL(url common.URL) (bool, error) {
+func (m *MetadataServiceProxy) SubscribeURL(url *common.URL) (bool, error) {
 	logger.Error("you should never invoke this implementation")
 	return false, nil
 }
 
-func (m *MetadataServiceProxy) UnsubscribeURL(url common.URL) error {
+func (m *MetadataServiceProxy) UnsubscribeURL(url *common.URL) error {
 	logger.Error("you should never invoke this implementation")
 	return nil
 }
 
-func (m *MetadataServiceProxy) PublishServiceDefinition(url common.URL) error {
+func (m *MetadataServiceProxy) PublishServiceDefinition(url *common.URL) error {
 	logger.Error("you should never invoke this implementation")
 	return nil
 }
 
-func (m *MetadataServiceProxy) GetSubscribedURLs() ([]common.URL, error) {
+func (m *MetadataServiceProxy) GetSubscribedURLs() ([]*common.URL, error) {
 	logger.Error("you should never invoke this implementation")
-	return []common.URL{}, nil
+	return nil, nil
 }
 
 func (m *MetadataServiceProxy) GetServiceDefinition(interfaceName string, group string, version string) (string, error) {
diff --git a/metadata/service/inmemory/service_proxy_test.go b/metadata/service/inmemory/service_proxy_test.go
index 0d75517..f7fc8fd 100644
--- a/metadata/service/inmemory/service_proxy_test.go
+++ b/metadata/service/inmemory/service_proxy_test.go
@@ -49,16 +49,16 @@
 func TestNewMetadataService(t *testing.T) {
 	pxy := createPxy()
 	pxy.ServiceName()
-	pxy.PublishServiceDefinition(common.URL{})
+	pxy.PublishServiceDefinition(&common.URL{})
 	pxy.GetServiceDefinition(constant.ANY_VALUE, constant.ANY_VALUE, constant.ANY_VALUE)
 	pxy.Version()
 	pxy.GetSubscribedURLs()
-	pxy.UnsubscribeURL(common.URL{})
+	pxy.UnsubscribeURL(&common.URL{})
 	pxy.GetServiceDefinitionByServiceKey("any")
-	pxy.ExportURL(common.URL{})
-	pxy.SubscribeURL(common.URL{})
+	pxy.ExportURL(&common.URL{})
+	pxy.SubscribeURL(&common.URL{})
 	pxy.MethodMapper()
-	pxy.UnexportURL(common.URL{})
+	pxy.UnexportURL(&common.URL{})
 	pxy.RefreshMetadata(constant.ANY_VALUE, constant.ANY_VALUE)
 
 }
diff --git a/metadata/service/remote/service.go b/metadata/service/remote/service.go
index ae83a69..d1b17e8 100644
--- a/metadata/service/remote/service.go
+++ b/metadata/service/remote/service.go
@@ -89,29 +89,29 @@
 }
 
 // ExportURL will be implemented by in memory service
-func (mts *MetadataService) ExportURL(url common.URL) (bool, error) {
+func (mts *MetadataService) ExportURL(url *common.URL) (bool, error) {
 	return mts.inMemoryMetadataService.ExportURL(url)
 }
 
 // UnexportURL remove @url's metadata
-func (mts *MetadataService) UnexportURL(url common.URL) error {
+func (mts *MetadataService) UnexportURL(url *common.URL) error {
 	smi := identifier.NewServiceMetadataIdentifier(url)
 	smi.Revision = mts.exportedRevision.Load()
 	return mts.delegateReport.RemoveServiceMetadata(smi)
 }
 
 // SubscribeURL will be implemented by in memory service
-func (mts *MetadataService) SubscribeURL(url common.URL) (bool, error) {
+func (mts *MetadataService) SubscribeURL(url *common.URL) (bool, error) {
 	return mts.inMemoryMetadataService.SubscribeURL(url)
 }
 
 // UnsubscribeURL will be implemented by in memory service
-func (mts *MetadataService) UnsubscribeURL(url common.URL) error {
+func (mts *MetadataService) UnsubscribeURL(url *common.URL) error {
 	return mts.UnsubscribeURL(url)
 }
 
 // PublishServiceDefinition will call remote metadata's StoreProviderMetadata to store url info and service definition
-func (mts *MetadataService) PublishServiceDefinition(url common.URL) error {
+func (mts *MetadataService) PublishServiceDefinition(url *common.URL) error {
 	interfaceName := url.GetParam(constant.INTERFACE_KEY, "")
 	isGeneric := url.GetParamBool(constant.GENERIC_KEY, false)
 	if len(interfaceName) > 0 && !isGeneric {
@@ -139,7 +139,7 @@
 }
 
 // GetSubscribedURLs will be implemented by in memory service
-func (mts *MetadataService) GetSubscribedURLs() ([]common.URL, error) {
+func (mts *MetadataService) GetSubscribedURLs() ([]*common.URL, error) {
 	return mts.inMemoryMetadataService.GetSubscribedURLs()
 }
 
diff --git a/metadata/service/remote/service_proxy.go b/metadata/service/remote/service_proxy.go
index eaf7a02..3199aa6 100644
--- a/metadata/service/remote/service_proxy.go
+++ b/metadata/service/remote/service_proxy.go
@@ -45,27 +45,27 @@
 	return m.serviceName, nil
 }
 
-func (m *metadataServiceProxy) ExportURL(url common.URL) (bool, error) {
+func (m *metadataServiceProxy) ExportURL(url *common.URL) (bool, error) {
 	logger.Error("you should never invoke this implementation")
 	return true, nil
 }
 
-func (m *metadataServiceProxy) UnexportURL(url common.URL) error {
+func (m *metadataServiceProxy) UnexportURL(url *common.URL) error {
 	logger.Error("you should never invoke this implementation")
 	return nil
 }
 
-func (m *metadataServiceProxy) SubscribeURL(url common.URL) (bool, error) {
+func (m *metadataServiceProxy) SubscribeURL(url *common.URL) (bool, error) {
 	logger.Error("you should never invoke this implementation")
 	return true, nil
 }
 
-func (m *metadataServiceProxy) UnsubscribeURL(url common.URL) error {
+func (m *metadataServiceProxy) UnsubscribeURL(url *common.URL) error {
 	logger.Error("you should never invoke this implementation")
 	return nil
 }
 
-func (m *metadataServiceProxy) PublishServiceDefinition(url common.URL) error {
+func (m *metadataServiceProxy) PublishServiceDefinition(url *common.URL) error {
 	logger.Error("you should never invoke this implementation")
 	return nil
 }
@@ -85,7 +85,7 @@
 	if err != nil {
 		return []interface{}{}, nil
 	}
-	res := make([]common.URL, 0, len(urls))
+	var res []*common.URL
 	for _, s := range urls {
 		u, err := common.NewURL(s)
 		if err != nil {
@@ -101,9 +101,9 @@
 	return map[string]string{}
 }
 
-func (m *metadataServiceProxy) GetSubscribedURLs() ([]common.URL, error) {
+func (m *metadataServiceProxy) GetSubscribedURLs() ([]*common.URL, error) {
 	logger.Error("you should never invoke this implementation")
-	return []common.URL{}, nil
+	return nil, nil
 }
 
 func (m *metadataServiceProxy) GetServiceDefinition(interfaceName string, group string, version string) (string, error) {
diff --git a/metadata/service/remote/service_proxy_test.go b/metadata/service/remote/service_proxy_test.go
index c284bb2..8bccbb8 100644
--- a/metadata/service/remote/service_proxy_test.go
+++ b/metadata/service/remote/service_proxy_test.go
@@ -55,15 +55,15 @@
 func TestMetadataServiceProxy(t *testing.T) {
 	pxy := createProxy()
 	pxy.ServiceName()
-	pxy.PublishServiceDefinition(common.URL{})
+	pxy.PublishServiceDefinition(&common.URL{})
 	pxy.Version()
 	pxy.GetSubscribedURLs()
-	pxy.UnsubscribeURL(common.URL{})
+	pxy.UnsubscribeURL(&common.URL{})
 	pxy.GetServiceDefinitionByServiceKey("any")
-	pxy.ExportURL(common.URL{})
-	pxy.SubscribeURL(common.URL{})
+	pxy.ExportURL(&common.URL{})
+	pxy.SubscribeURL(&common.URL{})
 	pxy.MethodMapper()
-	pxy.UnexportURL(common.URL{})
+	pxy.UnexportURL(&common.URL{})
 	pxy.Reference()
 	pxy.RefreshMetadata(constant.ANY_VALUE, constant.ANY_VALUE)
 }
@@ -89,7 +89,7 @@
 		return &mockMetadataReportFactory{}
 	})
 	u, _ := common.NewURL("mock://localhost")
-	instance.GetMetadataReportInstance(&u)
+	instance.GetMetadataReportInstance(u)
 }
 
 type mockMetadataReportFactory struct {
@@ -110,7 +110,7 @@
 	panic("implement me")
 }
 
-func (m mockMetadataReport) SaveServiceMetadata(*identifier.ServiceMetadataIdentifier, common.URL) error {
+func (m mockMetadataReport) SaveServiceMetadata(*identifier.ServiceMetadataIdentifier, *common.URL) error {
 	return nil
 }
 
diff --git a/metadata/service/remote/service_test.go b/metadata/service/remote/service_test.go
index 734f098..1cbe5ee 100644
--- a/metadata/service/remote/service_test.go
+++ b/metadata/service/remote/service_test.go
@@ -39,7 +39,7 @@
 )
 
 var (
-	serviceMetadata    = make(map[*identifier.ServiceMetadataIdentifier]common.URL, 4)
+	serviceMetadata    = make(map[*identifier.ServiceMetadataIdentifier]*common.URL, 4)
 	subscribedMetadata = make(map[*identifier.SubscriberMetadataIdentifier]string, 4)
 )
 
@@ -65,7 +65,7 @@
 	return nil
 }
 
-func (mr *metadataReport) SaveServiceMetadata(id *identifier.ServiceMetadataIdentifier, url common.URL) error {
+func (mr *metadataReport) SaveServiceMetadata(id *identifier.ServiceMetadataIdentifier, url *common.URL) error {
 	logger.Infof("SaveServiceMetadata , url is %v", url)
 	serviceMetadata[id] = url
 	return nil
@@ -97,7 +97,7 @@
 	extension.SetMetadataReportFactory("mock", getMetadataReportFactory)
 	u, err := common.NewURL(fmt.Sprintf("mock://127.0.0.1:20000/?sync.report=true"))
 	assert.NoError(t, err)
-	instance.GetMetadataReportInstance(&u)
+	instance.GetMetadataReportInstance(u)
 	mts, err := newMetadataService()
 	assert.NoError(t, err)
 	mts.(*MetadataService).setInMemoryMetadataService(mockInmemoryProc(t))
diff --git a/metadata/service/service.go b/metadata/service/service.go
index f6509d0..1d90f8a 100644
--- a/metadata/service/service.go
+++ b/metadata/service/service.go
@@ -34,15 +34,15 @@
 	// ServiceName will get the service's name in meta service , which is application name
 	ServiceName() (string, error)
 	// ExportURL will store the exported url in metadata
-	ExportURL(url common.URL) (bool, error)
+	ExportURL(url *common.URL) (bool, error)
 	// UnexportURL will delete the exported url in metadata
-	UnexportURL(url common.URL) error
+	UnexportURL(url *common.URL) error
 	// SubscribeURL will store the subscribed url in metadata
-	SubscribeURL(url common.URL) (bool, error)
+	SubscribeURL(url *common.URL) (bool, error)
 	// UnsubscribeURL will delete the subscribed url in metadata
-	UnsubscribeURL(url common.URL) error
+	UnsubscribeURL(url *common.URL) error
 	// PublishServiceDefinition will generate the target url's code info
-	PublishServiceDefinition(url common.URL) error
+	PublishServiceDefinition(url *common.URL) error
 	// GetExportedURLs will get the target exported url in metadata
 	// the url should be unique
 	// due to dubbo-go only support return array []interface{} in RPCService, so we should declare the return type as []interface{}
@@ -53,7 +53,7 @@
 
 	// GetExportedURLs will get the target subscribed url in metadata
 	// the url should be unique
-	GetSubscribedURLs() ([]common.URL, error)
+	GetSubscribedURLs() ([]*common.URL, error)
 	// GetServiceDefinition will get the target service info store in metadata
 	GetServiceDefinition(interfaceName string, group string, version string) (string, error)
 	// GetServiceDefinition will get the target service info store in metadata by service key
@@ -122,7 +122,7 @@
 	return metaData[constant.EXPORTED_SERVICES_REVISION_PROPERTY_NAME]
 }
 
-func ConvertURLArrToIntfArr(urls []common.URL) []interface{} {
+func ConvertURLArrToIntfArr(urls []*common.URL) []interface{} {
 	if len(urls) == 0 {
 		return []interface{}{}
 	}
diff --git a/metrics/prometheus/reporter.go b/metrics/prometheus/reporter.go
index bd1e798..810a13d 100644
--- a/metrics/prometheus/reporter.go
+++ b/metrics/prometheus/reporter.go
@@ -130,13 +130,13 @@
 }
 
 // whether this url represents the application received the request as server
-func isProvider(url common.URL) bool {
+func isProvider(url *common.URL) bool {
 	role := url.GetParam(constant.ROLE_KEY, "")
 	return strings.EqualFold(role, strconv.Itoa(common.PROVIDER))
 }
 
 // whether this url represents the application sent then request as client
-func isConsumer(url common.URL) bool {
+func isConsumer(url *common.URL) bool {
 	role := url.GetParam(constant.ROLE_KEY, "")
 	return strings.EqualFold(role, strconv.Itoa(common.CONSUMER))
 }
diff --git a/protocol/dubbo/dubbo_invoker.go b/protocol/dubbo/dubbo_invoker.go
index e72ca28..acddfd6 100644
--- a/protocol/dubbo/dubbo_invoker.go
+++ b/protocol/dubbo/dubbo_invoker.go
@@ -66,7 +66,7 @@
 }
 
 // NewDubboInvoker constructor
-func NewDubboInvoker(url common.URL, client *remoting.ExchangeClient) *DubboInvoker {
+func NewDubboInvoker(url *common.URL, client *remoting.ExchangeClient) *DubboInvoker {
 	requestTimeout := config.GetConsumerConfig().RequestTimeout
 
 	requestTimeoutStr := url.GetParam(constant.TIMEOUT_KEY, config.GetConsumerConfig().Request_Timeout)
diff --git a/protocol/dubbo/dubbo_invoker_test.go b/protocol/dubbo/dubbo_invoker_test.go
index c80f412..49d853e 100644
--- a/protocol/dubbo/dubbo_invoker_test.go
+++ b/protocol/dubbo/dubbo_invoker_test.go
@@ -93,7 +93,7 @@
 	proto.Destroy()
 }
 
-func InitTest(t *testing.T) (protocol.Protocol, common.URL) {
+func InitTest(t *testing.T) (protocol.Protocol, *common.URL) {
 
 	hessian.RegisterPOJO(&User{})
 
diff --git a/protocol/dubbo/dubbo_protocol.go b/protocol/dubbo/dubbo_protocol.go
index 8dda52b..4f03b8a 100644
--- a/protocol/dubbo/dubbo_protocol.go
+++ b/protocol/dubbo/dubbo_protocol.go
@@ -90,7 +90,7 @@
 }
 
 // Refer create dubbo service reference.
-func (dp *DubboProtocol) Refer(url common.URL) protocol.Invoker {
+func (dp *DubboProtocol) Refer(url *common.URL) protocol.Invoker {
 	exchangeClient := getExchangeClient(url)
 	if exchangeClient == nil {
 		logger.Warnf("can't dial the server: %+v", url.Location)
@@ -115,7 +115,7 @@
 	}
 }
 
-func (dp *DubboProtocol) openServer(url common.URL) {
+func (dp *DubboProtocol) openServer(url *common.URL) {
 	_, ok := dp.serverMap[url.Location]
 	if !ok {
 		_, ok := dp.ExporterMap().Load(url.ServiceKey())
@@ -176,7 +176,7 @@
 	return result
 }
 
-func getExchangeClient(url common.URL) *remoting.ExchangeClient {
+func getExchangeClient(url *common.URL) *remoting.ExchangeClient {
 	clientTmp, ok := exchangeClientMap.Load(url.Location)
 	if !ok {
 		var exchangeClientTmp *remoting.ExchangeClient
diff --git a/protocol/dubbo/hessian2/hessian_dubbo_test.go b/protocol/dubbo/hessian2/hessian_dubbo_test.go
index c3f19f0..13dab92 100644
--- a/protocol/dubbo/hessian2/hessian_dubbo_test.go
+++ b/protocol/dubbo/hessian2/hessian_dubbo_test.go
@@ -223,7 +223,7 @@
 
 type AttachTestObject struct {
 	Id   int32
-	Name string `dubbo:name`
+	Name string `dubbo:"name"`
 }
 
 func (AttachTestObject) JavaClassName() string {
diff --git a/protocol/grpc/client.go b/protocol/grpc/client.go
index 9b31a8c..33f0a08 100644
--- a/protocol/grpc/client.go
+++ b/protocol/grpc/client.go
@@ -90,7 +90,7 @@
 }
 
 // NewClient creates a new gRPC client.
-func NewClient(url common.URL) *Client {
+func NewClient(url *common.URL) *Client {
 	// if global trace instance was set , it means trace function enabled. If not , will return Nooptracer
 	tracer := opentracing.GlobalTracer()
 	dailOpts := make([]grpc.DialOption, 0, 4)
@@ -117,7 +117,7 @@
 }
 
 func getInvoker(impl interface{}, conn *grpc.ClientConn) interface{} {
-	in := []reflect.Value{}
+	var in []reflect.Value
 	in = append(in, reflect.ValueOf(conn))
 	method := reflect.ValueOf(impl).MethodByName("GetDubboStub")
 	res := method.Call(in)
diff --git a/protocol/grpc/grpc_invoker.go b/protocol/grpc/grpc_invoker.go
index 737e8c4..02e7716 100644
--- a/protocol/grpc/grpc_invoker.go
+++ b/protocol/grpc/grpc_invoker.go
@@ -45,7 +45,7 @@
 }
 
 // NewGrpcInvoker returns a Grpc invoker instance
-func NewGrpcInvoker(url common.URL, client *Client) *GrpcInvoker {
+func NewGrpcInvoker(url *common.URL, client *Client) *GrpcInvoker {
 	return &GrpcInvoker{
 		BaseInvoker: *protocol.NewBaseInvoker(url),
 		client:      client,
@@ -62,7 +62,7 @@
 		result.Err = errNoReply
 	}
 
-	in := []reflect.Value{}
+	var in []reflect.Value
 	in = append(in, reflect.ValueOf(context.Background()))
 	in = append(in, invocation.ParameterValues()...)
 
diff --git a/protocol/grpc/grpc_protocol.go b/protocol/grpc/grpc_protocol.go
index 396ff47..3ad1245 100644
--- a/protocol/grpc/grpc_protocol.go
+++ b/protocol/grpc/grpc_protocol.go
@@ -67,7 +67,7 @@
 	return exporter
 }
 
-func (gp *GrpcProtocol) openServer(url common.URL) {
+func (gp *GrpcProtocol) openServer(url *common.URL) {
 	_, ok := gp.serverMap[url.Location]
 	if !ok {
 		_, ok := gp.ExporterMap().Load(url.ServiceKey())
@@ -89,7 +89,7 @@
 }
 
 // Refer a remote gRPC service
-func (gp *GrpcProtocol) Refer(url common.URL) protocol.Invoker {
+func (gp *GrpcProtocol) Refer(url *common.URL) protocol.Invoker {
 	invoker := NewGrpcInvoker(url, NewClient(url))
 	gp.SetInvokers(invoker)
 	logger.Infof("Refer service: %s", url.String())
diff --git a/protocol/grpc/server.go b/protocol/grpc/server.go
index 30bdf77..e77e2ba 100644
--- a/protocol/grpc/server.go
+++ b/protocol/grpc/server.go
@@ -63,7 +63,7 @@
 }
 
 // Start gRPC server with @url
-func (s *Server) Start(url common.URL) {
+func (s *Server) Start(url *common.URL) {
 	var (
 		addr string
 		err  error
diff --git a/protocol/invoker.go b/protocol/invoker.go
index 91814e2..5657b6b 100644
--- a/protocol/invoker.go
+++ b/protocol/invoker.go
@@ -41,13 +41,13 @@
 
 // BaseInvoker provides default invoker implement
 type BaseInvoker struct {
-	url       common.URL
+	url       *common.URL
 	available bool
 	destroyed bool
 }
 
 // NewBaseInvoker creates a new BaseInvoker
-func NewBaseInvoker(url common.URL) *BaseInvoker {
+func NewBaseInvoker(url *common.URL) *BaseInvoker {
 	return &BaseInvoker{
 		url:       url,
 		available: true,
@@ -56,7 +56,7 @@
 }
 
 // GetUrl gets base invoker URL
-func (bi *BaseInvoker) GetUrl() common.URL {
+func (bi *BaseInvoker) GetUrl() *common.URL {
 	return bi.url
 }
 
diff --git a/protocol/jsonrpc/http.go b/protocol/jsonrpc/http.go
index 2a2ddfe..869617e 100644
--- a/protocol/jsonrpc/http.go
+++ b/protocol/jsonrpc/http.go
@@ -101,7 +101,7 @@
 }
 
 // NewRequest creates a new HTTP request with @service ,@method and @arguments.
-func (c *HTTPClient) NewRequest(service common.URL, method string, args interface{}) *Request {
+func (c *HTTPClient) NewRequest(service *common.URL, method string, args interface{}) *Request {
 
 	return &Request{
 		ID:       atomic.AddInt64(&c.ID, 1),
@@ -115,7 +115,7 @@
 }
 
 // Call makes a HTTP call with @ctx , @service ,@req and @rsp
-func (c *HTTPClient) Call(ctx context.Context, service common.URL, req *Request, rsp interface{}) error {
+func (c *HTTPClient) Call(ctx context.Context, service *common.URL, req *Request, rsp interface{}) error {
 	// header
 	httpHeader := http.Header{}
 	httpHeader.Set("Content-Type", "application/json")
diff --git a/protocol/jsonrpc/jsonrpc_invoker.go b/protocol/jsonrpc/jsonrpc_invoker.go
index d84b980..f10aaad 100644
--- a/protocol/jsonrpc/jsonrpc_invoker.go
+++ b/protocol/jsonrpc/jsonrpc_invoker.go
@@ -36,7 +36,7 @@
 }
 
 // NewJsonrpcInvoker creates JSON RPC invoker with @url and @client
-func NewJsonrpcInvoker(url common.URL, client *HTTPClient) *JsonrpcInvoker {
+func NewJsonrpcInvoker(url *common.URL, client *HTTPClient) *JsonrpcInvoker {
 	return &JsonrpcInvoker{
 		BaseInvoker: *protocol.NewBaseInvoker(url),
 		client:      client,
diff --git a/protocol/jsonrpc/jsonrpc_protocol.go b/protocol/jsonrpc/jsonrpc_protocol.go
index 1778d99..643bcde 100644
--- a/protocol/jsonrpc/jsonrpc_protocol.go
+++ b/protocol/jsonrpc/jsonrpc_protocol.go
@@ -75,7 +75,7 @@
 }
 
 // Refer a remote JSON PRC service from registry
-func (jp *JsonrpcProtocol) Refer(url common.URL) protocol.Invoker {
+func (jp *JsonrpcProtocol) Refer(url *common.URL) protocol.Invoker {
 	//default requestTimeout
 	var requestTimeout = config.GetConsumerConfig().RequestTimeout
 
@@ -106,7 +106,7 @@
 	}
 }
 
-func (jp *JsonrpcProtocol) openServer(url common.URL) {
+func (jp *JsonrpcProtocol) openServer(url *common.URL) {
 	_, ok := jp.serverMap[url.Location]
 	if !ok {
 		_, loadOk := jp.ExporterMap().Load(strings.TrimPrefix(url.Path, "/"))
diff --git a/protocol/jsonrpc/server.go b/protocol/jsonrpc/server.go
index 9755a48..755aa7d 100644
--- a/protocol/jsonrpc/server.go
+++ b/protocol/jsonrpc/server.go
@@ -229,7 +229,7 @@
 }
 
 // Start JSON RPC server then ready for accept request.
-func (s *Server) Start(url common.URL) {
+func (s *Server) Start(url *common.URL) {
 	listener, err := net.Listen("tcp", url.Location)
 	if err != nil {
 		logger.Errorf("jsonrpc server [%s] start failed: %v", url.Path, err)
diff --git a/protocol/mock/mock_invoker.go b/protocol/mock/mock_invoker.go
index 0c88b47..8a0973b 100644
--- a/protocol/mock/mock_invoker.go
+++ b/protocol/mock/mock_invoker.go
@@ -59,9 +59,9 @@
 }
 
 // GetUrl mocks base method
-func (m *MockInvoker) GetUrl() common.URL {
+func (m *MockInvoker) GetUrl() *common.URL {
 	ret := m.ctrl.Call(m, "GetUrl")
-	ret0, _ := ret[0].(common.URL)
+	ret0, _ := ret[0].(*common.URL)
 	return ret0
 }
 
diff --git a/protocol/protocol.go b/protocol/protocol.go
index 6bed5ec..d03e70f 100644
--- a/protocol/protocol.go
+++ b/protocol/protocol.go
@@ -32,7 +32,7 @@
 	// Export service for remote invocation
 	Export(invoker Invoker) Exporter
 	// Refer a remote service
-	Refer(url common.URL) Invoker
+	Refer(url *common.URL) Invoker
 	// Destroy will destroy all invoker and exporter, so it only is called once.
 	Destroy()
 }
@@ -89,7 +89,7 @@
 }
 
 // Refer is default refer implement.
-func (bp *BaseProtocol) Refer(url common.URL) Invoker {
+func (bp *BaseProtocol) Refer(url *common.URL) Invoker {
 	return NewBaseInvoker(url)
 }
 
diff --git a/protocol/protocolwrapper/mock_protocol_filter.go b/protocol/protocolwrapper/mock_protocol_filter.go
index 2e9ffed..18a4e15 100644
--- a/protocol/protocolwrapper/mock_protocol_filter.go
+++ b/protocol/protocolwrapper/mock_protocol_filter.go
@@ -39,7 +39,7 @@
 }
 
 // Refer a mock remote service
-func (pfw *mockProtocolFilter) Refer(url common.URL) protocol.Invoker {
+func (pfw *mockProtocolFilter) Refer(url *common.URL) protocol.Invoker {
 	return protocol.NewBaseInvoker(url)
 }
 
diff --git a/protocol/protocolwrapper/protocol_filter_wrapper.go b/protocol/protocolwrapper/protocol_filter_wrapper.go
index 4b2702b..79d2cf7 100644
--- a/protocol/protocolwrapper/protocol_filter_wrapper.go
+++ b/protocol/protocolwrapper/protocol_filter_wrapper.go
@@ -55,7 +55,7 @@
 }
 
 // Refer a remote service
-func (pfw *ProtocolFilterWrapper) Refer(url common.URL) protocol.Invoker {
+func (pfw *ProtocolFilterWrapper) Refer(url *common.URL) protocol.Invoker {
 	if pfw.protocol == nil {
 		pfw.protocol = extension.GetProtocol(url.Protocol)
 	}
@@ -101,7 +101,7 @@
 }
 
 // GetUrl is used to get url from FilterInvoker
-func (fi *FilterInvoker) GetUrl() common.URL {
+func (fi *FilterInvoker) GetUrl() *common.URL {
 	return fi.invoker.GetUrl()
 }
 
diff --git a/protocol/protocolwrapper/protocol_filter_wrapper_test.go b/protocol/protocolwrapper/protocol_filter_wrapper_test.go
index b03ea7b..8f063f8 100644
--- a/protocol/protocolwrapper/protocol_filter_wrapper_test.go
+++ b/protocol/protocolwrapper/protocol_filter_wrapper_test.go
@@ -43,7 +43,7 @@
 	u := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.SERVICE_FILTER_KEY, "echo"))
-	exporter := filtProto.Export(protocol.NewBaseInvoker(*u))
+	exporter := filtProto.Export(protocol.NewBaseInvoker(u))
 	_, ok := exporter.GetInvoker().(*FilterInvoker)
 	assert.True(t, ok)
 }
@@ -55,7 +55,7 @@
 	u := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.REFERENCE_FILTER_KEY, "echo"))
-	invoker := filtProto.Refer(*u)
+	invoker := filtProto.Refer(u)
 	_, ok := invoker.(*FilterInvoker)
 	assert.True(t, ok)
 }
diff --git a/protocol/rest/rest_invoker.go b/protocol/rest/rest_invoker.go
index 691beed..898890e 100644
--- a/protocol/rest/rest_invoker.go
+++ b/protocol/rest/rest_invoker.go
@@ -43,7 +43,7 @@
 }
 
 // NewRestInvoker returns a RestInvoker
-func NewRestInvoker(url common.URL, client *client.RestClient, restMethodConfig map[string]*config.RestMethodConfig) *RestInvoker {
+func NewRestInvoker(url *common.URL, client *client.RestClient, restMethodConfig map[string]*config.RestMethodConfig) *RestInvoker {
 	return &RestInvoker{
 		BaseInvoker:         *protocol.NewBaseInvoker(url),
 		client:              *client,
diff --git a/protocol/rest/rest_protocol.go b/protocol/rest/rest_protocol.go
index 0cd26c2..05e119b 100644
--- a/protocol/rest/rest_protocol.go
+++ b/protocol/rest/rest_protocol.go
@@ -86,7 +86,7 @@
 }
 
 // Refer create rest service reference
-func (rp *RestProtocol) Refer(url common.URL) protocol.Invoker {
+func (rp *RestProtocol) Refer(url *common.URL) protocol.Invoker {
 	// create rest_invoker
 	var requestTimeout = config.GetConsumerConfig().RequestTimeout
 	requestTimeoutStr := url.GetParam(constant.TIMEOUT_KEY, config.GetConsumerConfig().Request_Timeout)
@@ -107,7 +107,7 @@
 }
 
 // nolint
-func (rp *RestProtocol) getServer(url common.URL, serverType string) server.RestServer {
+func (rp *RestProtocol) getServer(url *common.URL, serverType string) server.RestServer {
 	restServer, ok := rp.serverMap[url.Location]
 	if ok {
 		return restServer
@@ -149,8 +149,8 @@
 func (rp *RestProtocol) Destroy() {
 	// destroy rest_server
 	rp.BaseProtocol.Destroy()
-	for key, server := range rp.serverMap {
-		server.Destroy()
+	for key, tmpServer := range rp.serverMap {
+		tmpServer.Destroy()
 		delete(rp.serverMap, key)
 	}
 	for key := range rp.clientMap {
diff --git a/protocol/rest/server/rest_server.go b/protocol/rest/server/rest_server.go
index d9542bb..5ef04ff 100644
--- a/protocol/rest/server/rest_server.go
+++ b/protocol/rest/server/rest_server.go
@@ -43,7 +43,7 @@
 // RestServer user can implement this server interface
 type RestServer interface {
 	// Start rest server
-	Start(url common.URL)
+	Start(url *common.URL)
 	// Deploy a http api
 	Deploy(restMethodConfig *rest_config.RestMethodConfig, routeFunc func(request RestServerRequest, response RestServerResponse))
 	// UnDeploy a http api
diff --git a/protocol/rest/server/server_impl/go_restful_server.go b/protocol/rest/server/server_impl/go_restful_server.go
index 6fb9ee8..e4b2e26 100644
--- a/protocol/rest/server/server_impl/go_restful_server.go
+++ b/protocol/rest/server/server_impl/go_restful_server.go
@@ -59,7 +59,7 @@
 
 // Start go-restful server
 // It will add all go-restful filters
-func (grs *GoRestfulServer) Start(url common.URL) {
+func (grs *GoRestfulServer) Start(url *common.URL) {
 	container := restful.NewContainer()
 	for _, filter := range filterSlice {
 		container.Filter(filter)
diff --git a/protocol/rpc_status.go b/protocol/rpc_status.go
index 978534e..8d443e8 100644
--- a/protocol/rpc_status.go
+++ b/protocol/rpc_status.go
@@ -97,7 +97,7 @@
 }
 
 // GetURLStatus get URL RPC status.
-func GetURLStatus(url common.URL) *RPCStatus {
+func GetURLStatus(url *common.URL) *RPCStatus {
 	rpcStatus, found := serviceStatistic.Load(url.Key())
 	if !found {
 		rpcStatus, _ = serviceStatistic.LoadOrStore(url.Key(), &RPCStatus{})
@@ -106,7 +106,7 @@
 }
 
 // GetMethodStatus get method RPC status.
-func GetMethodStatus(url common.URL, methodName string) *RPCStatus {
+func GetMethodStatus(url *common.URL, methodName string) *RPCStatus {
 	identifier := url.Key()
 	methodMap, found := methodStatistics.Load(identifier)
 	if !found {
@@ -124,13 +124,13 @@
 }
 
 // BeginCount gets begin count.
-func BeginCount(url common.URL, methodName string) {
+func BeginCount(url *common.URL, methodName string) {
 	beginCount0(GetURLStatus(url))
 	beginCount0(GetMethodStatus(url, methodName))
 }
 
 // EndCount gets end count.
-func EndCount(url common.URL, methodName string, elapsed int64, succeeded bool) {
+func EndCount(url *common.URL, methodName string, elapsed int64, succeeded bool) {
 	endCount0(GetURLStatus(url), elapsed, succeeded)
 	endCount0(GetMethodStatus(url, methodName), elapsed, succeeded)
 }
diff --git a/protocol/rpc_status_test.go b/protocol/rpc_status_test.go
index cc12753..6fd449c 100644
--- a/protocol/rpc_status_test.go
+++ b/protocol/rpc_status_test.go
@@ -79,7 +79,7 @@
 	assert.Equal(t, int32(0), status.total)
 }
 
-func TestbeginCount0(t *testing.T) {
+func TestBeginCount0(t *testing.T) {
 	defer CleanAllStatus()
 
 	url, _ := common.NewURL(mockCommonDubboUrl)
@@ -142,7 +142,7 @@
 
 }
 
-func request(url common.URL, method string, elapsed int64, active, succeeded bool) {
+func request(url *common.URL, method string, elapsed int64, active, succeeded bool) {
 	BeginCount(url, method)
 	if !active {
 		EndCount(url, method, elapsed, succeeded)
diff --git a/registry/base_registry.go b/registry/base_registry.go
index d6f5ceb..a6693be 100644
--- a/registry/base_registry.go
+++ b/registry/base_registry.go
@@ -99,8 +99,8 @@
 	birth    int64          // time of file birth, seconds since Epoch; 0 if unknown
 	wg       sync.WaitGroup // wg+done for zk restart
 	done     chan struct{}
-	cltLock  sync.RWMutex          //ctl lock is a lock for services map
-	services map[string]common.URL // service name + protocol -> service config, for store the service registered
+	cltLock  sync.RWMutex           //ctl lock is a lock for services map
+	services map[string]*common.URL // service name + protocol -> service config, for store the service registered
 }
 
 // InitBaseRegistry for init some local variables and set BaseRegistry's subclass to it
@@ -108,14 +108,14 @@
 	r.URL = url
 	r.birth = time.Now().UnixNano()
 	r.done = make(chan struct{})
-	r.services = make(map[string]common.URL)
+	r.services = make(map[string]*common.URL)
 	r.facadeBasedRegistry = facadeRegistry
 	return r
 }
 
 // GetUrl for get registry's url
-func (r *BaseRegistry) GetUrl() common.URL {
-	return *r.URL
+func (r *BaseRegistry) GetUrl() *common.URL {
+	return r.URL
 }
 
 // Destroy for graceful down
@@ -132,7 +132,7 @@
 }
 
 // Register implement interface registry to register
-func (r *BaseRegistry) Register(conf common.URL) error {
+func (r *BaseRegistry) Register(conf *common.URL) error {
 	var (
 		ok  bool
 		err error
@@ -160,11 +160,11 @@
 }
 
 // UnRegister implement interface registry to unregister
-func (r *BaseRegistry) UnRegister(conf common.URL) error {
+func (r *BaseRegistry) UnRegister(conf *common.URL) error {
 	var (
 		ok     bool
 		err    error
-		oldURL common.URL
+		oldURL *common.URL
 	)
 
 	func() {
@@ -197,7 +197,7 @@
 }
 
 // service is for getting service path stored in url
-func (r *BaseRegistry) service(c common.URL) string {
+func (r *BaseRegistry) service(c *common.URL) string {
 	return url.QueryEscape(c.Service())
 }
 
@@ -205,7 +205,7 @@
 func (r *BaseRegistry) RestartCallBack() bool {
 
 	// copy r.services
-	services := make([]common.URL, 0, len(r.services))
+	services := make([]*common.URL, 0, len(r.services))
 	for _, confIf := range r.services {
 		services = append(services, confIf)
 	}
@@ -230,16 +230,16 @@
 }
 
 // register for register url to registry, include init params
-func (r *BaseRegistry) register(c common.URL) error {
+func (r *BaseRegistry) register(c *common.URL) error {
 	return r.processURL(c, r.facadeBasedRegistry.DoRegister, r.createPath)
 }
 
 // unregister for unregister url to registry, include init params
-func (r *BaseRegistry) unregister(c common.URL) error {
+func (r *BaseRegistry) unregister(c *common.URL) error {
 	return r.processURL(c, r.facadeBasedRegistry.DoUnregister, nil)
 }
 
-func (r *BaseRegistry) processURL(c common.URL, f func(string, string) error, cpf createPathFunc) error {
+func (r *BaseRegistry) processURL(c *common.URL, f func(string, string) error, cpf createPathFunc) error {
 	if f == nil {
 		panic(" Must provide a `function(string, string) error` to process URL. ")
 	}
@@ -291,7 +291,7 @@
 }
 
 // providerRegistry for provider role do
-func (r *BaseRegistry) providerRegistry(c common.URL, params url.Values, f createPathFunc) (string, string, error) {
+func (r *BaseRegistry) providerRegistry(c *common.URL, params url.Values, f createPathFunc) (string, string, error) {
 	var (
 		dubboPath string
 		rawURL    string
@@ -342,7 +342,7 @@
 }
 
 // consumerRegistry for consumer role do
-func (r *BaseRegistry) consumerRegistry(c common.URL, params url.Values, f createPathFunc) (string, string, error) {
+func (r *BaseRegistry) consumerRegistry(c *common.URL, params url.Values, f createPathFunc) (string, string, error) {
 	var (
 		dubboPath string
 		rawURL    string
diff --git a/registry/consul/listener.go b/registry/consul/listener.go
index b159834..0d665af 100644
--- a/registry/consul/listener.go
+++ b/registry/consul/listener.go
@@ -39,17 +39,17 @@
 // registry.
 type consulListener struct {
 	// Registry url.
-	registryUrl common.URL
+	registryUrl *common.URL
 
 	// Consumer url.
-	consumerUrl common.URL
+	consumerUrl *common.URL
 
 	// Consul watcher.
 	plan *watch.Plan
 
 	// Most recent service urls return by
 	// watcher.
-	urls []common.URL
+	urls []*common.URL
 
 	// All service information changes will
 	// be wrapped into ServiceEvent, and be
@@ -78,7 +78,7 @@
 	wg sync.WaitGroup
 }
 
-func newConsulListener(registryUrl common.URL, consumerUrl common.URL) (*consulListener, error) {
+func newConsulListener(registryUrl *common.URL, consumerUrl *common.URL) (*consulListener, error) {
 	params := make(map[string]interface{}, 8)
 	params["type"] = "service"
 	params["service"] = consumerUrl.Service()
@@ -93,7 +93,7 @@
 		registryUrl: registryUrl,
 		consumerUrl: consumerUrl,
 		plan:        plan,
-		urls:        make([]common.URL, 0, 8),
+		urls:        make([]*common.URL, 0, 8),
 		eventCh:     make(chan *registry.ServiceEvent, 32),
 		errCh:       make(chan error, 32),
 		done:        make(chan struct{}),
@@ -142,7 +142,7 @@
 func (l *consulListener) handler(idx uint64, raw interface{}) {
 	var (
 		service *consul.ServiceEntry
-		url     common.URL
+		url     *common.URL
 		ok      bool
 		err     error
 	)
@@ -153,7 +153,7 @@
 		l.errCh <- err
 		return
 	}
-	newUrls := make([]common.URL, 0, 8)
+	newUrls := make([]*common.URL, 0, 8)
 	events := make([]*registry.ServiceEvent, 0, 8)
 
 	for _, service = range services {
diff --git a/registry/consul/registry.go b/registry/consul/registry.go
index b92e335..0b7ba97 100644
--- a/registry/consul/registry.go
+++ b/registry/consul/registry.go
@@ -76,7 +76,7 @@
 
 // Register register @url
 // it delegate the job to register() method
-func (r *consulRegistry) Register(url common.URL) error {
+func (r *consulRegistry) Register(url *common.URL) error {
 	var err error
 
 	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
@@ -90,7 +90,7 @@
 }
 
 // register actually register the @url
-func (r *consulRegistry) register(url common.URL) error {
+func (r *consulRegistry) register(url *common.URL) error {
 	service, err := buildService(url)
 	if err != nil {
 		return err
@@ -100,7 +100,7 @@
 
 // UnRegister unregister the @url
 // it delegate the job to unregister() method
-func (r *consulRegistry) UnRegister(url common.URL) error {
+func (r *consulRegistry) UnRegister(url *common.URL) error {
 	var err error
 
 	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
@@ -114,7 +114,7 @@
 }
 
 // unregister actually unregister the @url
-func (r *consulRegistry) unregister(url common.URL) error {
+func (r *consulRegistry) unregister(url *common.URL) error {
 	return r.client.Agent().ServiceDeregister(buildId(url))
 }
 
@@ -141,7 +141,7 @@
 			return
 		}
 
-		listener, err := r.getListener(*url)
+		listener, err := r.getListener(url)
 		if err != nil {
 			if !r.IsAvailable() {
 				logger.Warnf("event listener game over.")
@@ -166,14 +166,14 @@
 	}
 }
 
-func (r *consulRegistry) getListener(url common.URL) (registry.Listener, error) {
-	listener, err := newConsulListener(*r.URL, url)
+func (r *consulRegistry) getListener(url *common.URL) (registry.Listener, error) {
+	listener, err := newConsulListener(r.URL, url)
 	return listener, err
 }
 
 // GetUrl get registry URL of consul registry center
-func (r *consulRegistry) GetUrl() common.URL {
-	return *r.URL
+func (r *consulRegistry) GetUrl() *common.URL {
+	return r.URL
 }
 
 // IsAvailable checks consul registry center whether is available
@@ -197,7 +197,7 @@
 				}
 				done <- struct{}{}
 			}()
-			if err := r.UnRegister(*r.URL); err != nil {
+			if err := r.UnRegister(r.URL); err != nil {
 				logger.Errorf("consul registry unregister with err: %s", err.Error())
 			}
 		}()
diff --git a/registry/consul/service_discovery_test.go b/registry/consul/service_discovery_test.go
index ed7220f..2169857 100644
--- a/registry/consul/service_discovery_test.go
+++ b/registry/consul/service_discovery_test.go
@@ -44,7 +44,6 @@
 	consulCheckPassInterval              = 17000
 	consulDeregisterCriticalServiceAfter = "20s"
 	consulWatchTimeout                   = 60000
-	registryURL                          = common.URL{}
 )
 
 func TestConsulServiceDiscovery_newConsulServiceDiscovery(t *testing.T) {
@@ -173,7 +172,7 @@
 	}
 }
 
-func prepareService() (registry.ServiceInstance, common.URL) {
+func prepareService() (registry.ServiceInstance, *common.URL) {
 	id := "id"
 
 	registryUrl, _ := common.NewURL(protocol + "://" + providerHost + ":" + strconv.Itoa(providerPort) + "/" + service + "?anyhost=true&" +
@@ -200,19 +199,19 @@
 }
 
 // AddEventListener do nothing
-func (m *MockEventDispatcher) AddEventListener(listener observer.EventListener) {
+func (m *MockEventDispatcher) AddEventListener(observer.EventListener) {
 }
 
 // AddEventListeners do nothing
-func (m *MockEventDispatcher) AddEventListeners(listenersSlice []observer.EventListener) {
+func (m *MockEventDispatcher) AddEventListeners([]observer.EventListener) {
 }
 
 // RemoveEventListener do nothing
-func (m *MockEventDispatcher) RemoveEventListener(listener observer.EventListener) {
+func (m *MockEventDispatcher) RemoveEventListener(observer.EventListener) {
 }
 
 // RemoveEventListeners do nothing
-func (m *MockEventDispatcher) RemoveEventListeners(listenersSlice []observer.EventListener) {
+func (m *MockEventDispatcher) RemoveEventListeners([]observer.EventListener) {
 }
 
 // GetAllEventListeners return empty list
diff --git a/registry/consul/utils.go b/registry/consul/utils.go
index f5babf6..468dafb 100644
--- a/registry/consul/utils.go
+++ b/registry/consul/utils.go
@@ -33,12 +33,12 @@
 	"github.com/apache/dubbo-go/common"
 )
 
-func buildId(url common.URL) string {
+func buildId(url *common.URL) string {
 	t := md5.Sum([]byte(url.String()))
 	return hex.EncodeToString(t[:])
 }
 
-func buildService(url common.URL) (*consul.AgentServiceRegistration, error) {
+func buildService(url *common.URL) (*consul.AgentServiceRegistration, error) {
 	var err error
 
 	// id
@@ -93,19 +93,19 @@
 	return service, nil
 }
 
-func retrieveURL(service *consul.ServiceEntry) (common.URL, error) {
+func retrieveURL(service *consul.ServiceEntry) (*common.URL, error) {
 	url, ok := service.Service.Meta["url"]
 	if !ok {
-		return common.URL{}, perrors.New("retrieve url fails with no url key in service meta")
+		return nil, perrors.New("retrieve url fails with no url key in service meta")
 	}
 	url1, err := common.NewURL(url)
 	if err != nil {
-		return common.URL{}, perrors.WithStack(err)
+		return nil, perrors.WithStack(err)
 	}
 	return url1, nil
 }
 
-func in(url common.URL, urls []common.URL) bool {
+func in(url *common.URL, urls []*common.URL) bool {
 	for _, url1 := range urls {
 		if url.URLEqual(url1) {
 			return true
diff --git a/registry/consul/utils_test.go b/registry/consul/utils_test.go
index 0e5bffe..d78c534 100644
--- a/registry/consul/utils_test.go
+++ b/registry/consul/utils_test.go
@@ -63,8 +63,8 @@
 	)
 }
 
-func newProviderUrl(host string, port int, service string, protocol string) common.URL {
-	return *common.NewURLWithOptions(
+func newProviderUrl(host string, port int, service string, protocol string) *common.URL {
+	return common.NewURLWithOptions(
 		common.WithIp(host),
 		common.WithPort(strconv.Itoa(port)),
 		common.WithPath(service),
@@ -72,8 +72,8 @@
 	)
 }
 
-func newConsumerUrl(host string, port int, service string, protocol string) common.URL {
-	return *common.NewURLWithOptions(
+func newConsumerUrl(host string, port int, service string, protocol string) *common.URL {
+	return common.NewURLWithOptions(
 		common.WithIp(host),
 		common.WithPort(strconv.Itoa(port)),
 		common.WithPath(service),
@@ -130,8 +130,8 @@
 	providerRegistry registry.Registry
 	consumerRegistry *consulRegistry
 	listener         registry.Listener
-	providerUrl      common.URL
-	consumerUrl      common.URL
+	providerUrl      *common.URL
+	consumerUrl      *common.URL
 }
 
 func newConsulRegistryTestSuite(t *testing.T) *consulRegistryTestSuite {
diff --git a/registry/directory/directory.go b/registry/directory/directory.go
index 6f9c4fc..e6ae0f3 100644
--- a/registry/directory/directory.go
+++ b/registry/directory/directory.go
@@ -149,7 +149,7 @@
 // eventMatched checks if a cached invoker appears in the incoming invoker list, if no, then it is safe to remove.
 func (dir *RegistryDirectory) eventMatched(key string, events []*registry.ServiceEvent) bool {
 	for _, event := range events {
-		if dir.invokerCacheKey(&event.Service) == key {
+		if dir.invokerCacheKey(event.Service) == key {
 			return true
 		}
 	}
@@ -207,7 +207,7 @@
 
 // convertUrl processes override:// and router://
 func (dir *RegistryDirectory) convertUrl(res *registry.ServiceEvent) *common.URL {
-	ret := &res.Service
+	ret := res.Service
 	if ret.Protocol == constant.OVERRIDE_PROTOCOL || // 1.for override url in 2.6.x
 		ret.GetParam(constant.CATEGORY_KEY, constant.DEFAULT_CATEGORY) == constant.CONFIGURATORS_CATEGORY {
 		dir.configurators = append(dir.configurators, extension.GetDefaultConfigurator(ret))
@@ -296,19 +296,19 @@
 		dir.overrideUrl(newUrl)
 		if cacheInvoker, ok := dir.cacheInvokersMap.Load(newUrl.Key()); !ok {
 			logger.Debugf("service will be added in cache invokers: invokers url is  %s!", newUrl)
-			newInvoker := extension.GetProtocol(protocolwrapper.FILTER).Refer(*newUrl)
+			newInvoker := extension.GetProtocol(protocolwrapper.FILTER).Refer(newUrl)
 			if newInvoker != nil {
 				dir.cacheInvokersMap.Store(newUrl.Key(), newInvoker)
 			}
 		} else {
 			// if cached invoker has the same URL with the new URL, then no need to re-refer, and no need to destroy
 			// the old invoker.
-			if common.IsEquals(*newUrl, cacheInvoker.(protocol.Invoker).GetUrl()) {
+			if common.IsEquals(newUrl, cacheInvoker.(protocol.Invoker).GetUrl()) {
 				return nil
 			}
 
 			logger.Debugf("service will be updated in cache invokers: new invoker url is %s, old invoker url is %s", newUrl, cacheInvoker.(protocol.Invoker).GetUrl())
-			newInvoker := extension.GetProtocol(protocolwrapper.FILTER).Refer(*newUrl)
+			newInvoker := extension.GetProtocol(protocolwrapper.FILTER).Refer(newUrl)
 			if newInvoker != nil {
 				dir.cacheInvokersMap.Store(newUrl.Key(), newInvoker)
 				return cacheInvoker.(protocol.Invoker)
diff --git a/registry/directory/directory_test.go b/registry/directory/directory_test.go
index f2b2f8e..dde944d 100644
--- a/registry/directory/directory_test.go
+++ b/registry/directory/directory_test.go
@@ -72,7 +72,7 @@
 func TestSubscribe_InvalidUrl(t *testing.T) {
 	url, _ := common.NewURL("mock://127.0.0.1:1111")
 	mockRegistry, _ := registry.NewMockRegistry(&common.URL{})
-	_, err := NewRegistryDirectory(&url, mockRegistry)
+	_, err := NewRegistryDirectory(url, mockRegistry)
 	assert.Error(t, err)
 }
 
@@ -83,9 +83,9 @@
 	regurl, _ := common.NewURL("mock://127.0.0.1:1111")
 	suburl, _ := common.NewURL("dubbo://127.0.0.1:20000")
 	suburl.SetParam(constant.CLUSTER_KEY, "mock")
-	regurl.SubURL = &suburl
+	regurl.SubURL = suburl
 	mockRegistry, _ := registry.NewMockRegistry(&common.URL{})
-	dir, _ := NewRegistryDirectory(&regurl, mockRegistry)
+	dir, _ := NewRegistryDirectory(regurl, mockRegistry)
 
 	go dir.(*RegistryDirectory).subscribe(common.NewURLWithOptions(common.WithPath("testservice")))
 	//for group1
@@ -93,7 +93,7 @@
 	urlmap.Set(constant.GROUP_KEY, "group1")
 	urlmap.Set(constant.CLUSTER_KEY, "failover") //to test merge url
 	for i := 0; i < 3; i++ {
-		mockRegistry.(*registry.MockRegistry).MockEvent(&registry.ServiceEvent{Action: remoting.EventTypeAdd, Service: *common.NewURLWithOptions(common.WithPath("TEST"+strconv.FormatInt(int64(i), 10)), common.WithProtocol("dubbo"),
+		mockRegistry.(*registry.MockRegistry).MockEvent(&registry.ServiceEvent{Action: remoting.EventTypeAdd, Service: common.NewURLWithOptions(common.WithPath("TEST"+strconv.FormatInt(int64(i), 10)), common.WithProtocol("dubbo"),
 			common.WithParams(urlmap))})
 	}
 	//for group2
@@ -101,7 +101,7 @@
 	urlmap2.Set(constant.GROUP_KEY, "group2")
 	urlmap2.Set(constant.CLUSTER_KEY, "failover") //to test merge url
 	for i := 0; i < 3; i++ {
-		mockRegistry.(*registry.MockRegistry).MockEvent(&registry.ServiceEvent{Action: remoting.EventTypeAdd, Service: *common.NewURLWithOptions(common.WithPath("TEST"+strconv.FormatInt(int64(i), 10)), common.WithProtocol("dubbo"),
+		mockRegistry.(*registry.MockRegistry).MockEvent(&registry.ServiceEvent{Action: remoting.EventTypeAdd, Service: common.NewURLWithOptions(common.WithPath("TEST"+strconv.FormatInt(int64(i), 10)), common.WithProtocol("dubbo"),
 			common.WithParams(urlmap2))})
 	}
 
@@ -202,17 +202,17 @@
 		common.WithParamsValue(constant.GROUP_KEY, "group"),
 		common.WithParamsValue(constant.VERSION_KEY, "1.0.0"),
 	)
-	url.SubURL = &suburl
+	url.SubURL = suburl
 	mockRegistry, _ := registry.NewMockRegistry(&common.URL{})
-	dir, _ := NewRegistryDirectory(&url, mockRegistry)
+	dir, _ := NewRegistryDirectory(url, mockRegistry)
 
-	go dir.(*RegistryDirectory).subscribe(&suburl)
+	go dir.(*RegistryDirectory).subscribe(suburl)
 	if len(noMockEvent) == 0 {
 		for i := 0; i < 3; i++ {
 			mockRegistry.(*registry.MockRegistry).MockEvent(
 				&registry.ServiceEvent{
 					Action: remoting.EventTypeAdd,
-					Service: *common.NewURLWithOptions(
+					Service: common.NewURLWithOptions(
 						common.WithPath("TEST"+strconv.FormatInt(int64(i), 10)),
 						common.WithProtocol("dubbo"),
 					),
diff --git a/registry/etcdv3/listener.go b/registry/etcdv3/listener.go
index 436b6ec..4bc387c 100644
--- a/registry/etcdv3/listener.go
+++ b/registry/etcdv3/listener.go
@@ -64,7 +64,7 @@
 	}
 
 	for _, v := range l.interestedURL {
-		if serviceURL.URLEqual(*v) {
+		if serviceURL.URLEqual(v) {
 			l.listener.Process(
 				&config_center.ConfigChangeEvent{
 					Key:        eventType.Path,
@@ -113,7 +113,7 @@
 				}
 				continue
 			}
-			return &registry.ServiceEvent{Action: e.ConfigType, Service: e.Value.(common.URL)}, nil
+			return &registry.ServiceEvent{Action: e.ConfigType, Service: e.Value.(*common.URL)}, nil
 		}
 	}
 }
diff --git a/registry/etcdv3/listener_test.go b/registry/etcdv3/listener_test.go
index 1cf06d1..ff7f63f 100644
--- a/registry/etcdv3/listener_test.go
+++ b/registry/etcdv3/listener_test.go
@@ -80,7 +80,7 @@
 
 	listener := NewRegistryDataListener(&MockDataListener{})
 	url, _ := common.NewURL("jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100")
-	listener.AddInterestedURL(&url)
+	listener.AddInterestedURL(url)
 	if !listener.DataChange(remoting.Event{Path: "/dubbo/com.ikurento.user.UserProvider/providers/jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100"}) {
 		t.Fatal("data change not ok")
 	}
diff --git a/registry/etcdv3/registry_test.go b/registry/etcdv3/registry_test.go
index 164fe9c..d94eff6 100644
--- a/registry/etcdv3/registry_test.go
+++ b/registry/etcdv3/registry_test.go
@@ -39,7 +39,7 @@
 		t.Fatal(err)
 	}
 
-	reg, err := newETCDV3Registry(&regurl)
+	reg, err := newETCDV3Registry(regurl)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -86,7 +86,7 @@
 
 	err = reg2.Register(url)
 	assert.NoError(t, err)
-	listener, err := reg2.DoSubscribe(&url)
+	listener, err := reg2.DoSubscribe(url)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -104,7 +104,7 @@
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
 	reg := initRegistry(t)
-	_, err := reg.DoSubscribe(&url)
+	_, err := reg.DoSubscribe(url)
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/registry/event.go b/registry/event.go
index 39fb00c..c934158 100644
--- a/registry/event.go
+++ b/registry/event.go
@@ -40,7 +40,7 @@
 // ServiceEvent includes create, update, delete event
 type ServiceEvent struct {
 	Action  remoting.EventType
-	Service common.URL
+	Service *common.URL
 }
 
 // String return the description of event
diff --git a/registry/event/metadata_service_url_params_customizer_test.go b/registry/event/metadata_service_url_params_customizer_test.go
index 98ae2df..c041232 100644
--- a/registry/event/metadata_service_url_params_customizer_test.go
+++ b/registry/event/metadata_service_url_params_customizer_test.go
@@ -70,27 +70,27 @@
 	panic("implement me")
 }
 
-func (m *mockMetadataService) ExportURL(url common.URL) (bool, error) {
+func (m *mockMetadataService) ExportURL(*common.URL) (bool, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) UnexportURL(url common.URL) error {
+func (m *mockMetadataService) UnexportURL(*common.URL) error {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) SubscribeURL(url common.URL) (bool, error) {
+func (m *mockMetadataService) SubscribeURL(*common.URL) (bool, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) UnsubscribeURL(url common.URL) error {
+func (m *mockMetadataService) UnsubscribeURL(*common.URL) error {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) PublishServiceDefinition(url common.URL) error {
+func (m *mockMetadataService) PublishServiceDefinition(*common.URL) error {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetExportedURLs(serviceInterface string, group string, version string, protocol string) ([]interface{}, error) {
+func (m *mockMetadataService) GetExportedURLs(string, string, string, string) ([]interface{}, error) {
 	return m.urls, nil
 }
 
@@ -98,8 +98,8 @@
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetSubscribedURLs() ([]common.URL, error) {
-	res := make([]common.URL, 0, len(m.urls))
+func (m *mockMetadataService) GetSubscribedURLs() ([]*common.URL, error) {
+	var res []*common.URL
 	for _, ui := range m.urls {
 		u, _ := common.NewURL(ui.(string))
 		res = append(res, u)
@@ -107,15 +107,15 @@
 	return res, nil
 }
 
-func (m *mockMetadataService) GetServiceDefinition(interfaceName string, group string, version string) (string, error) {
+func (m *mockMetadataService) GetServiceDefinition(string, string, string) (string, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetServiceDefinitionByServiceKey(serviceKey string) (string, error) {
+func (m *mockMetadataService) GetServiceDefinitionByServiceKey(string) (string, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) RefreshMetadata(exportedRevision string, subscribedRevision string) (bool, error) {
+func (m *mockMetadataService) RefreshMetadata(string, string) (bool, error) {
 	panic("implement me")
 }
 
diff --git a/registry/file/service_discovery.go b/registry/file/service_discovery.go
index 59c5cf9..254c126 100644
--- a/registry/file/service_discovery.go
+++ b/registry/file/service_discovery.go
@@ -70,7 +70,7 @@
 	p := path.Join(rp, ".dubbo", constant.REGISTRY_KEY)
 	url, _ := common.NewURL("")
 	url.AddParamAvoidNil(file.CONFIG_CENTER_DIR_PARAM_NAME, p)
-	c, err := fdcf.GetDynamicConfiguration(&url)
+	c, err := fdcf.GetDynamicConfiguration(url)
 	if err != nil {
 		return nil, perrors.WithStack(err)
 	}
diff --git a/registry/kubernetes/listener.go b/registry/kubernetes/listener.go
index 24c8d81..e20b7c7 100644
--- a/registry/kubernetes/listener.go
+++ b/registry/kubernetes/listener.go
@@ -65,7 +65,7 @@
 	}
 
 	for _, v := range l.interestedURL {
-		if serviceURL.URLEqual(*v) {
+		if serviceURL.URLEqual(v) {
 			l.listener.Process(
 				&config_center.ConfigChangeEvent{
 					Key:        eventType.Path,
@@ -114,7 +114,7 @@
 				}
 				continue
 			}
-			return &registry.ServiceEvent{Action: e.ConfigType, Service: e.Value.(common.URL)}, nil
+			return &registry.ServiceEvent{Action: e.ConfigType, Service: e.Value.(*common.URL)}, nil
 		}
 	}
 }
diff --git a/registry/kubernetes/listener_test.go b/registry/kubernetes/listener_test.go
index ccaaf80..f1d8ff4 100644
--- a/registry/kubernetes/listener_test.go
+++ b/registry/kubernetes/listener_test.go
@@ -166,7 +166,7 @@
 func Test_DataChange(t *testing.T) {
 	listener := NewRegistryDataListener(&MockDataListener{})
 	url, _ := common.NewURL("jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100")
-	listener.AddInterestedURL(&url)
+	listener.AddInterestedURL(url)
 	int := listener.DataChange(remoting.Event{Path: "/dubbo/com.ikurento.user.UserProvider/providers/jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100"})
 	assert.Equal(t, true, int)
 }
@@ -179,7 +179,7 @@
 
 	listener := NewRegistryDataListener(&MockDataListener{})
 	url, _ := common.NewURL("jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100")
-	listener.AddInterestedURL(&url)
+	listener.AddInterestedURL(url)
 	if !listener.DataChange(remoting.Event{Path: "/dubbo/com.ikurento.user.UserProvider/providers/jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100"}) {
 		t.Fatal("data change not ok")
 	}
diff --git a/registry/kubernetes/registry_test.go b/registry/kubernetes/registry_test.go
index 347dadc..9fb409a 100644
--- a/registry/kubernetes/registry_test.go
+++ b/registry/kubernetes/registry_test.go
@@ -231,7 +231,7 @@
 	if err != nil {
 		t.Fatal(err)
 	}
-	out, err := newMockKubernetesRegistry(&regurl, pl)
+	out, err := newMockKubernetesRegistry(regurl, pl)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -268,7 +268,7 @@
 		t.Fatal(err)
 	}
 
-	listener, err := r.DoSubscribe(&url)
+	listener, err := r.DoSubscribe(url)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -301,7 +301,7 @@
 		common.WithParamsValue(constant.CLUSTER_KEY, "mock"),
 		common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	_, err := r.DoSubscribe(&url)
+	_, err := r.DoSubscribe(url)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -336,7 +336,7 @@
 	if err != nil {
 		t.Fatal(err)
 	}
-	_, err = newKubernetesRegistry(&regUrl)
+	_, err = newKubernetesRegistry(regUrl)
 	if err == nil {
 		t.Fatal("not in cluster, should be a err")
 	}
diff --git a/registry/mock_registry.go b/registry/mock_registry.go
index 10561d0..18c87ee 100644
--- a/registry/mock_registry.go
+++ b/registry/mock_registry.go
@@ -47,12 +47,12 @@
 }
 
 // Register is used as a mock registry
-func (*MockRegistry) Register(url common.URL) error {
+func (*MockRegistry) Register(url *common.URL) error {
 	return nil
 }
 
 // nolint
-func (r *MockRegistry) UnRegister(conf common.URL) error {
+func (r *MockRegistry) UnRegister(conf *common.URL) error {
 	return nil
 }
 
@@ -68,8 +68,8 @@
 }
 
 // nolint
-func (r *MockRegistry) GetUrl() common.URL {
-	return common.URL{}
+func (r *MockRegistry) GetUrl() *common.URL {
+	return nil
 }
 
 func (r *MockRegistry) subscribe(*common.URL) (Listener, error) {
diff --git a/registry/nacos/listener.go b/registry/nacos/listener.go
index cf6a73d..7f27326 100644
--- a/registry/nacos/listener.go
+++ b/registry/nacos/listener.go
@@ -43,7 +43,7 @@
 
 type nacosListener struct {
 	namingClient   naming_client.INamingClient
-	listenUrl      common.URL
+	listenUrl      *common.URL
 	events         chan *config_center.ConfigChangeEvent
 	instanceMap    map[string]model.Instance
 	cacheLock      sync.Mutex
@@ -52,7 +52,7 @@
 }
 
 // NewRegistryDataListener creates a data listener for nacos
-func NewNacosListener(url common.URL, namingClient naming_client.INamingClient) (*nacosListener, error) {
+func NewNacosListener(url *common.URL, namingClient naming_client.INamingClient) (*nacosListener, error) {
 	listener := &nacosListener{
 		namingClient: namingClient,
 		listenUrl:    url, events: make(chan *config_center.ConfigChangeEvent, 32),
@@ -154,25 +154,25 @@
 	for i := range addInstances {
 		newUrl := generateUrl(addInstances[i])
 		if newUrl != nil {
-			nl.process(&config_center.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EventTypeAdd})
+			nl.process(&config_center.ConfigChangeEvent{Value: newUrl, ConfigType: remoting.EventTypeAdd})
 		}
 	}
 	for i := range delInstances {
 		newUrl := generateUrl(delInstances[i])
 		if newUrl != nil {
-			nl.process(&config_center.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EventTypeDel})
+			nl.process(&config_center.ConfigChangeEvent{Value: newUrl, ConfigType: remoting.EventTypeDel})
 		}
 	}
 
 	for i := range updateInstances {
 		newUrl := generateUrl(updateInstances[i])
 		if newUrl != nil {
-			nl.process(&config_center.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EventTypeUpdate})
+			nl.process(&config_center.ConfigChangeEvent{Value: newUrl, ConfigType: remoting.EventTypeUpdate})
 		}
 	}
 }
 
-func getSubscribeName(url common.URL) string {
+func getSubscribeName(url *common.URL) string {
 	var buffer bytes.Buffer
 
 	buffer.Write([]byte(common.DubboNodes[common.PROVIDER]))
@@ -210,7 +210,7 @@
 
 		case e := <-nl.events:
 			logger.Debugf("got nacos event %s", e)
-			return &registry.ServiceEvent{Action: e.ConfigType, Service: e.Value.(common.URL)}, nil
+			return &registry.ServiceEvent{Action: e.ConfigType, Service: e.Value.(*common.URL)}, nil
 		}
 	}
 }
diff --git a/registry/nacos/registry.go b/registry/nacos/registry.go
index 5142886..ae2345e 100644
--- a/registry/nacos/registry.go
+++ b/registry/nacos/registry.go
@@ -58,16 +58,16 @@
 type nacosRegistry struct {
 	*common.URL
 	namingClient naming_client.INamingClient
-	registryUrls []common.URL
+	registryUrls []*common.URL
 }
 
-func getCategory(url common.URL) string {
+func getCategory(url *common.URL) string {
 	role, _ := strconv.Atoi(url.GetParam(constant.ROLE_KEY, strconv.Itoa(constant.NACOS_DEFAULT_ROLETYPE)))
 	category := common.DubboNodes[role]
 	return category
 }
 
-func getServiceName(url common.URL) string {
+func getServiceName(url *common.URL) string {
 	var buffer bytes.Buffer
 
 	buffer.Write([]byte(getCategory(url)))
@@ -77,7 +77,7 @@
 	return buffer.String()
 }
 
-func appendParam(target *bytes.Buffer, url common.URL, key string) {
+func appendParam(target *bytes.Buffer, url *common.URL, key string) {
 	value := url.GetParam(key, "")
 	if strings.TrimSpace(value) != "" {
 		target.Write([]byte(constant.NACOS_SERVICE_NAME_SEPARATOR))
@@ -85,7 +85,7 @@
 	}
 }
 
-func createRegisterParam(url common.URL, serviceName string) vo.RegisterInstanceParam {
+func createRegisterParam(url *common.URL, serviceName string) vo.RegisterInstanceParam {
 	category := getCategory(url)
 	params := make(map[string]string)
 
@@ -118,7 +118,7 @@
 }
 
 // Register will register the service @url to its nacos registry center
-func (nr *nacosRegistry) Register(url common.URL) error {
+func (nr *nacosRegistry) Register(url *common.URL) error {
 	serviceName := getServiceName(url)
 	param := createRegisterParam(url, serviceName)
 	isRegistry, err := nr.namingClient.RegisterInstance(param)
@@ -132,7 +132,7 @@
 	return nil
 }
 
-func createDeregisterParam(url common.URL, serviceName string) vo.DeregisterInstanceParam {
+func createDeregisterParam(url *common.URL, serviceName string) vo.DeregisterInstanceParam {
 	if len(url.Ip) == 0 {
 		url.Ip = localIP
 	}
@@ -148,7 +148,7 @@
 	}
 }
 
-func (nr *nacosRegistry) DeRegister(url common.URL) error {
+func (nr *nacosRegistry) DeRegister(url *common.URL) error {
 	serviceName := getServiceName(url)
 	param := createDeregisterParam(url, serviceName)
 	isDeRegistry, err := nr.namingClient.DeregisterInstance(param)
@@ -162,12 +162,12 @@
 }
 
 // UnRegister
-func (nr *nacosRegistry) UnRegister(conf common.URL) error {
+func (nr *nacosRegistry) UnRegister(conf *common.URL) error {
 	return perrors.New("UnRegister is not support in nacosRegistry")
 }
 
 func (nr *nacosRegistry) subscribe(conf *common.URL) (registry.Listener, error) {
-	return NewNacosListener(*conf, nr.namingClient)
+	return NewNacosListener(conf, nr.namingClient)
 }
 
 // subscribe from registry
@@ -202,7 +202,6 @@
 		}
 
 	}
-	return nil
 }
 
 // UnSubscribe :
@@ -211,8 +210,8 @@
 }
 
 // GetUrl gets its registration URL
-func (nr *nacosRegistry) GetUrl() common.URL {
-	return *nr.URL
+func (nr *nacosRegistry) GetUrl() *common.URL {
+	return nr.URL
 }
 
 // IsAvailable determines nacos registry center whether it is available
@@ -243,12 +242,12 @@
 	if err != nil {
 		return &nacosRegistry{}, err
 	}
-	registry := &nacosRegistry{
+	tmpRegistry := &nacosRegistry{
 		URL:          url,
 		namingClient: client,
-		registryUrls: []common.URL{},
+		registryUrls: []*common.URL{},
 	}
-	return registry, nil
+	return tmpRegistry, nil
 }
 
 // getNacosConfig will return the nacos config
diff --git a/registry/nacos/registry_test.go b/registry/nacos/registry_test.go
index d0311b2..43a6da7 100644
--- a/registry/nacos/registry_test.go
+++ b/registry/nacos/registry_test.go
@@ -44,7 +44,7 @@
 	urlMap.Set(constant.CLUSTER_KEY, "mock")
 	testUrl, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParams(urlMap), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	reg, err := newNacosRegistry(&regurl)
+	reg, err := newNacosRegistry(regurl)
 	assert.Nil(t, err)
 	if err != nil {
 		t.Errorf("new nacos registry error:%s \n", err.Error())
@@ -74,7 +74,7 @@
 	urlMap.Set(constant.NACOS_PATH_KEY, "")
 	testUrl, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParams(urlMap), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	reg, _ := newNacosRegistry(&regurl)
+	reg, _ := newNacosRegistry(regurl)
 	err := reg.Register(testUrl)
 	assert.Nil(t, err)
 	if err != nil {
@@ -83,8 +83,8 @@
 	}
 
 	regurl.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
-	reg2, _ := newNacosRegistry(&regurl)
-	listener, err := reg2.(*nacosRegistry).subscribe(&testUrl)
+	reg2, _ := newNacosRegistry(regurl)
+	listener, err := reg2.(*nacosRegistry).subscribe(testUrl)
 	assert.Nil(t, err)
 	if err != nil {
 		t.Errorf("subscribe error:%s \n", err.Error())
@@ -113,7 +113,7 @@
 	url1, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParams(urlMap), common.WithMethods([]string{"GetUser", "AddUser"}))
 	url2, _ := common.NewURL("dubbo://127.0.0.2:20000/com.ikurento.user.UserProvider", common.WithParams(urlMap), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	reg, _ := newNacosRegistry(&regurl)
+	reg, _ := newNacosRegistry(regurl)
 	err := reg.Register(url1)
 	assert.Nil(t, err)
 	if err != nil {
@@ -128,8 +128,8 @@
 	}
 
 	regurl.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
-	reg2, _ := newNacosRegistry(&regurl)
-	listener, err := reg2.(*nacosRegistry).subscribe(&url1)
+	reg2, _ := newNacosRegistry(regurl)
+	listener, err := reg2.(*nacosRegistry).subscribe(url1)
 	assert.Nil(t, err)
 	if err != nil {
 		t.Errorf("subscribe error:%s \n", err.Error())
@@ -177,8 +177,8 @@
 	urlMap.Set(constant.CLUSTER_KEY, "mock")
 	urlMap.Set(constant.NACOS_PATH_KEY, "")
 	url1, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider2", common.WithParams(urlMap), common.WithMethods([]string{"GetUser", "AddUser"}))
-	reg, _ := newNacosRegistry(&regurl)
-	listener, err := reg.(*nacosRegistry).subscribe(&url1)
+	reg, _ := newNacosRegistry(regurl)
+	listener, err := reg.(*nacosRegistry).subscribe(url1)
 	assert.Nil(t, err)
 	if err != nil {
 		t.Errorf("subscribe error:%s \n", err.Error())
diff --git a/registry/protocol/protocol.go b/registry/protocol/protocol.go
index 69a31ef..e3af9ba 100644
--- a/registry/protocol/protocol.go
+++ b/registry/protocol/protocol.go
@@ -130,31 +130,30 @@
 }
 
 // Refer provider service from registry center
-func (proto *registryProtocol) Refer(url common.URL) protocol.Invoker {
+func (proto *registryProtocol) Refer(url *common.URL) protocol.Invoker {
 	var registryUrl = url
 	var serviceUrl = registryUrl.SubURL
 	if registryUrl.Protocol == constant.REGISTRY_PROTOCOL {
-		protocol := registryUrl.GetParam(constant.REGISTRY_KEY, "")
-		registryUrl.Protocol = protocol
+		registryUrl.Protocol = registryUrl.GetParam(constant.REGISTRY_KEY, "")
 	}
 
 	var reg registry.Registry
 	if regI, loaded := proto.registries.Load(registryUrl.Key()); !loaded {
-		reg = getRegistry(&registryUrl)
+		reg = getRegistry(registryUrl)
 		proto.registries.Store(registryUrl.Key(), reg)
 	} else {
 		reg = regI.(registry.Registry)
 	}
 
 	// new registry directory for store service url from registry
-	directory, err := extension.GetDefaultRegistryDirectory(&registryUrl, reg)
+	directory, err := extension.GetDefaultRegistryDirectory(registryUrl, reg)
 	if err != nil {
 		logger.Errorf("consumer service %v create registry directory error, error message is %s, and will return nil invoker!",
 			serviceUrl.String(), err.Error())
 		return nil
 	}
 
-	err = reg.Register(*serviceUrl)
+	err = reg.Register(serviceUrl)
 	if err != nil {
 		logger.Errorf("consumer service %v register registry %v error, error message is %s",
 			serviceUrl.String(), registryUrl.String(), err.Error())
@@ -194,7 +193,7 @@
 	}
 
 	registeredProviderUrl := getUrlToRegistry(providerUrl, registryUrl)
-	err := reg.Register(*registeredProviderUrl)
+	err := reg.Register(registeredProviderUrl)
 	if err != nil {
 		logger.Errorf("provider service %v register registry %v error, error message is %s",
 			providerUrl.Key(), registryUrl.Key(), err.Error())
@@ -247,8 +246,8 @@
 	}
 
 	event := events[0]
-	if isMatched(&(event.Service), nl.url) && event.Action == remoting.EventTypeAdd {
-		nl.configurator = extension.GetDefaultConfigurator(&(event.Service))
+	if isMatched(event.Service, nl.url) && event.Action == remoting.EventTypeAdd {
+		nl.configurator = extension.GetDefaultConfigurator(event.Service)
 		nl.doOverrideIfNecessary()
 	}
 }
@@ -275,9 +274,9 @@
 		}
 
 		if currentUrl.String() != providerUrl.String() {
-			newRegUrl := nl.originInvoker.GetUrl()
-			setProviderUrl(&newRegUrl, providerUrl)
-			nl.protocol.reExport(nl.originInvoker, &newRegUrl)
+			newRegUrl := nl.originInvoker.GetUrl().Clone()
+			setProviderUrl(newRegUrl, providerUrl)
+			nl.protocol.reExport(nl.originInvoker, newRegUrl)
 		}
 	}
 }
@@ -369,10 +368,9 @@
 	url := invoker.GetUrl()
 	// if the protocol == registry, set protocol the registry value in url.params
 	if url.Protocol == constant.REGISTRY_PROTOCOL {
-		protocol := url.GetParam(constant.REGISTRY_KEY, "")
-		url.Protocol = protocol
+		url.Protocol = url.GetParam(constant.REGISTRY_KEY, "")
 	}
-	return &url
+	return url
 }
 
 func getProviderUrl(invoker protocol.Invoker) *common.URL {
@@ -401,7 +399,7 @@
 func newWrappedInvoker(invoker protocol.Invoker, url *common.URL) *wrappedInvoker {
 	return &wrappedInvoker{
 		invoker:     invoker,
-		BaseInvoker: *protocol.NewBaseInvoker(*url),
+		BaseInvoker: *protocol.NewBaseInvoker(url),
 	}
 }
 
diff --git a/registry/protocol/protocol_test.go b/registry/protocol/protocol_test.go
index 2d6e024..0fca552 100644
--- a/registry/protocol/protocol_test.go
+++ b/registry/protocol/protocol_test.go
@@ -59,7 +59,7 @@
 		common.WithParamsValue(constant.CLUSTER_KEY, "mock"),
 	)
 
-	url.SubURL = &suburl
+	url.SubURL = suburl
 
 	invoker := regProtocol.Refer(url)
 	assert.IsType(t, &protocol.BaseInvoker{}, invoker)
@@ -84,7 +84,7 @@
 		common.WithParamsValue(constant.CLUSTER_KEY, "mock"),
 	)
 
-	url2.SubURL = &suburl2
+	url2.SubURL = suburl2
 
 	regProtocol.Refer(url2)
 	var count int
@@ -105,7 +105,7 @@
 		common.WithParamsValue(constant.CLUSTER_KEY, "mock"),
 	)
 
-	url2.SubURL = &suburl2
+	url2.SubURL = suburl2
 
 	regProtocol.Refer(url2)
 	var count int
@@ -128,13 +128,13 @@
 		common.WithParamsValue(constant.VERSION_KEY, "1.0.0"),
 	)
 
-	url.SubURL = &suburl
+	url.SubURL = suburl
 	invoker := protocol.NewBaseInvoker(url)
 	exporter := regProtocol.Export(invoker)
 
 	assert.IsType(t, &protocol.BaseExporter{}, exporter)
 	assert.Equal(t, exporter.GetInvoker().GetUrl().String(), suburl.String())
-	return &url
+	return url
 }
 
 func TestExporter(t *testing.T) {
@@ -153,7 +153,7 @@
 		common.WithParamsValue(constant.CLUSTER_KEY, "mock"),
 	)
 
-	url2.SubURL = &suburl2
+	url2.SubURL = suburl2
 	invoker2 := protocol.NewBaseInvoker(url2)
 	regProtocol.Export(invoker2)
 
@@ -184,7 +184,7 @@
 		common.WithParamsValue(constant.VERSION_KEY, "1.0.0"),
 	)
 
-	url2.SubURL = &suburl2
+	url2.SubURL = suburl2
 	invoker2 := protocol.NewBaseInvoker(url2)
 	regProtocol.Export(invoker2)
 
@@ -253,7 +253,7 @@
 func TestExportWithServiceConfig(t *testing.T) {
 	extension.SetDefaultConfigurator(configurator.NewMockConfigurator)
 	ccUrl, _ := common.NewURL("mock://127.0.0.1:1111")
-	dc, _ := (&config_center.MockDynamicConfigurationFactory{}).GetDynamicConfiguration(&ccUrl)
+	dc, _ := (&config_center.MockDynamicConfigurationFactory{}).GetDynamicConfiguration(ccUrl)
 	common_cfg.GetEnvInstance().SetDynamicConfiguration(dc)
 	regProtocol := newRegistryProtocol()
 	url := exporterNormal(t, regProtocol)
@@ -265,6 +265,7 @@
 
 	newUrl := url.SubURL.Clone()
 	newUrl.SetParam(constant.CLUSTER_KEY, "mock1")
+
 	v2, _ := regProtocol.bounds.Load(getCacheKey(newUrl))
 	assert.NotNil(t, v2)
 }
@@ -272,7 +273,7 @@
 func TestExportWithApplicationConfig(t *testing.T) {
 	extension.SetDefaultConfigurator(configurator.NewMockConfigurator)
 	ccUrl, _ := common.NewURL("mock://127.0.0.1:1111")
-	dc, _ := (&config_center.MockDynamicConfigurationFactory{}).GetDynamicConfiguration(&ccUrl)
+	dc, _ := (&config_center.MockDynamicConfigurationFactory{}).GetDynamicConfiguration(ccUrl)
 	common_cfg.GetEnvInstance().SetDynamicConfiguration(dc)
 	regProtocol := newRegistryProtocol()
 	url := exporterNormal(t, regProtocol)
@@ -290,7 +291,7 @@
 
 func TestGetProviderUrlWithHideKey(t *testing.T) {
 	url, _ := common.NewURL("dubbo://127.0.0.1:1111?a=a1&b=b1&.c=c1&.d=d1&e=e1&protocol=registry")
-	providerUrl := getUrlToRegistry(&url, &url)
+	providerUrl := getUrlToRegistry(url, url)
 	assert.NotContains(t, providerUrl.GetParams(), ".c")
 	assert.NotContains(t, providerUrl.GetParams(), ".d")
 	assert.Contains(t, providerUrl.GetParams(), "a")
diff --git a/registry/registry.go b/registry/registry.go
index 2225d2c..73940fa 100644
--- a/registry/registry.go
+++ b/registry/registry.go
@@ -34,7 +34,7 @@
 	// Register is used for service provider calling, register services
 	// to registry. And it is also used for service consumer calling, register
 	// services cared about, for dubbo's admin monitoring.
-	Register(url common.URL) error
+	Register(url *common.URL) error
 
 	// UnRegister is required to support the contract:
 	// 1. If it is the persistent stored data of dynamic=false, the
@@ -43,7 +43,7 @@
 	// 2. Unregister according to the full url match.
 	// url Registration information, is not allowed to be empty, e.g:
 	// dubbo://10.20.153.10/org.apache.dubbo.foo.BarService?version=1.0.0&application=kylin
-	UnRegister(url common.URL) error
+	UnRegister(url *common.URL) error
 
 	// Subscribe is required to support the contract:
 	// When creating new registry extension, pls select one of the
diff --git a/registry/servicediscovery/instance/random/random_service_instance_selector.go b/registry/servicediscovery/instance/random/random_service_instance_selector.go
index 3f8f30d..7e4e0ee 100644
--- a/registry/servicediscovery/instance/random/random_service_instance_selector.go
+++ b/registry/servicediscovery/instance/random/random_service_instance_selector.go
@@ -41,7 +41,7 @@
 	return &RandomServiceInstanceSelector{}
 }
 
-func (r *RandomServiceInstanceSelector) Select(url common.URL, serviceInstances []registry.ServiceInstance) registry.ServiceInstance {
+func (r *RandomServiceInstanceSelector) Select(url *common.URL, serviceInstances []registry.ServiceInstance) registry.ServiceInstance {
 	if len(serviceInstances) == 0 {
 		return nil
 	}
diff --git a/registry/servicediscovery/instance/random/random_service_instance_selector_test.go b/registry/servicediscovery/instance/random/random_service_instance_selector_test.go
index cddeb42..c53c058 100644
--- a/registry/servicediscovery/instance/random/random_service_instance_selector_test.go
+++ b/registry/servicediscovery/instance/random/random_service_instance_selector_test.go
@@ -52,5 +52,5 @@
 			Metadata:    nil,
 		},
 	}
-	assert.NotNil(t, selector.Select(common.URL{}, serviceInstances))
+	assert.NotNil(t, selector.Select(&common.URL{}, serviceInstances))
 }
diff --git a/registry/servicediscovery/instance/service_instance_selector.go b/registry/servicediscovery/instance/service_instance_selector.go
index 82fb345..5690ab6 100644
--- a/registry/servicediscovery/instance/service_instance_selector.go
+++ b/registry/servicediscovery/instance/service_instance_selector.go
@@ -24,5 +24,5 @@
 
 type ServiceInstanceSelector interface {
 	//Select an instance of ServiceInstance by the specified ServiceInstance service instances
-	Select(url common.URL, serviceInstances []registry.ServiceInstance) registry.ServiceInstance
+	Select(url *common.URL, serviceInstances []registry.ServiceInstance) registry.ServiceInstance
 }
diff --git a/registry/servicediscovery/service_discovery_registry.go b/registry/servicediscovery/service_discovery_registry.go
index 4db2c5a..ad6ec98 100644
--- a/registry/servicediscovery/service_discovery_registry.go
+++ b/registry/servicediscovery/service_discovery_registry.go
@@ -26,7 +26,6 @@
 )
 
 import (
-	cm "github.com/Workiva/go-datastructures/common"
 	gxset "github.com/dubbogo/gost/container/set"
 	perrors "github.com/pkg/errors"
 	"go.uber.org/atomic"
@@ -70,7 +69,7 @@
 	metaDataService                  service.MetadataService
 	registeredListeners              *gxset.HashSet
 	subscribedURLsSynthesizers       []synthesizer.SubscribedURLsSynthesizer
-	serviceRevisionExportedURLsCache map[string]map[string][]common.URL
+	serviceRevisionExportedURLsCache map[string]map[string][]*common.URL
 }
 
 func newServiceDiscoveryRegistry(url *common.URL) (registry.Registry, error) {
@@ -94,13 +93,13 @@
 		subscribedServices:               subscribedServices,
 		subscribedURLsSynthesizers:       subscribedURLsSynthesizers,
 		registeredListeners:              gxset.NewSet(),
-		serviceRevisionExportedURLsCache: make(map[string]map[string][]common.URL, 8),
+		serviceRevisionExportedURLsCache: make(map[string]map[string][]*common.URL, 8),
 		serviceNameMapping:               serviceNameMapping,
 		metaDataService:                  metaDataService,
 	}, nil
 }
 
-func (s *serviceDiscoveryRegistry) UnRegister(url common.URL) error {
+func (s *serviceDiscoveryRegistry) UnRegister(url *common.URL) error {
 	if !shouldRegister(url) {
 		return nil
 	}
@@ -108,10 +107,10 @@
 }
 
 func (s *serviceDiscoveryRegistry) UnSubscribe(url *common.URL, listener registry.NotifyListener) error {
-	if !shouldSubscribe(*url) {
+	if !shouldSubscribe(url) {
 		return nil
 	}
-	return s.metaDataService.UnsubscribeURL(*url)
+	return s.metaDataService.UnsubscribeURL(url)
 }
 
 func creatServiceDiscovery(url *common.URL) (registry.ServiceDiscovery, error) {
@@ -145,8 +144,8 @@
 	return s.serviceDiscovery
 }
 
-func (s *serviceDiscoveryRegistry) GetUrl() common.URL {
-	return *s.url
+func (s *serviceDiscoveryRegistry) GetUrl() *common.URL {
+	return s.url
 }
 
 func (s *serviceDiscoveryRegistry) IsAvailable() bool {
@@ -161,7 +160,7 @@
 	}
 }
 
-func (s *serviceDiscoveryRegistry) Register(url common.URL) error {
+func (s *serviceDiscoveryRegistry) Register(url *common.URL) error {
 	if !shouldRegister(url) {
 		return nil
 	}
@@ -185,7 +184,7 @@
 		url.Protocol)
 }
 
-func shouldRegister(url common.URL) bool {
+func shouldRegister(url *common.URL) bool {
 	side := url.GetParam(constant.SIDE_KEY, "")
 	if side == constant.PROVIDER_PROTOCOL {
 		return true
@@ -195,14 +194,14 @@
 }
 
 func (s *serviceDiscoveryRegistry) Subscribe(url *common.URL, notify registry.NotifyListener) error {
-	if !shouldSubscribe(*url) {
+	if !shouldSubscribe(url) {
 		return nil
 	}
-	_, err := s.metaDataService.SubscribeURL(*url)
+	_, err := s.metaDataService.SubscribeURL(url)
 	if err != nil {
 		return perrors.WithMessage(err, "subscribe url error: "+url.String())
 	}
-	services := s.getServices(*url)
+	services := s.getServices(url)
 	if services.Empty() {
 		return perrors.Errorf("Should has at least one way to know which services this interface belongs to, "+
 			"subscription url:%s", url.String())
@@ -218,12 +217,12 @@
 				serviceDiscoveryRegistry: s,
 			},
 		}
-		s.registerServiceInstancesChangedListener(*url, listener)
+		s.registerServiceInstancesChangedListener(url, listener)
 	}
 	return nil
 }
 
-func (s *serviceDiscoveryRegistry) registerServiceInstancesChangedListener(url common.URL, listener *registry.ServiceInstancesChangedListener) {
+func (s *serviceDiscoveryRegistry) registerServiceInstancesChangedListener(url *common.URL, listener *registry.ServiceInstancesChangedListener) {
 	listenerId := listener.ServiceName + ":" + getUrlKey(url)
 	if !s.subscribedServices.Contains(listenerId) {
 		err := s.serviceDiscovery.AddListener(listener)
@@ -234,7 +233,7 @@
 
 }
 
-func getUrlKey(url common.URL) string {
+func getUrlKey(url *common.URL) string {
 	var bf bytes.Buffer
 	if len(url.Protocol) != 0 {
 		bf.WriteString(url.Protocol)
@@ -256,7 +255,7 @@
 	return bf.String()
 }
 
-func appendParam(buffer bytes.Buffer, paramKey string, url common.URL) {
+func appendParam(buffer bytes.Buffer, paramKey string, url *common.URL) {
 	buffer.WriteString(paramKey)
 	buffer.WriteString("=")
 	buffer.WriteString(url.GetParam(paramKey, ""))
@@ -268,8 +267,8 @@
 		logger.Warnf("here is no instance in service[name : %s]", serviceName)
 		return
 	}
-	var subscribedURLs []common.URL
-	subscribedURLs = append(subscribedURLs, s.getExportedUrls(*url, serviceInstances)...)
+	var subscribedURLs []*common.URL
+	subscribedURLs = append(subscribedURLs, s.getExportedUrls(url, serviceInstances)...)
 	if len(subscribedURLs) == 0 {
 		subscribedURLs = s.synthesizeSubscribedURLs(url, serviceInstances)
 	}
@@ -282,8 +281,8 @@
 
 }
 
-func (s *serviceDiscoveryRegistry) synthesizeSubscribedURLs(subscribedURL *common.URL, serviceInstances []registry.ServiceInstance) []common.URL {
-	var urls []common.URL
+func (s *serviceDiscoveryRegistry) synthesizeSubscribedURLs(subscribedURL *common.URL, serviceInstances []registry.ServiceInstance) []*common.URL {
+	var urls []*common.URL
 	for _, syn := range s.subscribedURLsSynthesizers {
 		if syn.Support(subscribedURL) {
 			urls = append(urls, syn.Synthesize(subscribedURL, serviceInstances)...)
@@ -292,11 +291,11 @@
 	return urls
 }
 
-func shouldSubscribe(url common.URL) bool {
+func shouldSubscribe(url *common.URL) bool {
 	return !shouldRegister(url)
 }
 
-func (s *serviceDiscoveryRegistry) getServices(url common.URL) *gxset.HashSet {
+func (s *serviceDiscoveryRegistry) getServices(url *common.URL) *gxset.HashSet {
 	services := gxset.NewSet()
 	serviceNames := url.GetParam(constant.PROVIDER_BY, "")
 	if len(serviceNames) > 0 {
@@ -311,7 +310,7 @@
 	return services
 }
 
-func (s *serviceDiscoveryRegistry) findMappedServices(url common.URL) *gxset.HashSet {
+func (s *serviceDiscoveryRegistry) findMappedServices(url *common.URL) *gxset.HashSet {
 	serviceInterface := url.GetParam(constant.INTERFACE_KEY, url.Path)
 	group := url.GetParam(constant.GROUP_KEY, "")
 	version := url.GetParam(constant.VERSION_KEY, "")
@@ -325,7 +324,7 @@
 	return serviceNames
 }
 
-func (s *serviceDiscoveryRegistry) getExportedUrls(subscribedURL common.URL, serviceInstances []registry.ServiceInstance) []common.URL {
+func (s *serviceDiscoveryRegistry) getExportedUrls(subscribedURL *common.URL, serviceInstances []registry.ServiceInstance) []*common.URL {
 	var filterInstances []registry.ServiceInstance
 	for _, s := range serviceInstances {
 		if !s.IsEnable() || !s.IsHealthy() {
@@ -340,32 +339,15 @@
 		filterInstances = append(filterInstances, s)
 	}
 	if len(filterInstances) == 0 {
-		return []common.URL{}
+		return []*common.URL{}
 	}
 	s.prepareServiceRevisionExportedURLs(filterInstances)
 	subscribedURLs := s.cloneExportedURLs(subscribedURL, filterInstances)
 	return subscribedURLs
 }
 
-// comparator is defined as Comparator for skip list to compare the URL
-type comparator common.URL
-
-// Compare is defined as Comparator for skip list to compare the URL
-func (c comparator) Compare(comp cm.Comparator) int {
-	a := common.URL(c).String()
-	b := common.URL(comp.(comparator)).String()
-	switch {
-	case a > b:
-		return 1
-	case a < b:
-		return -1
-	default:
-		return 0
-	}
-}
-
-func (s *serviceDiscoveryRegistry) getExportedUrlsByInst(serviceInstance registry.ServiceInstance) []common.URL {
-	var urls []common.URL
+func (s *serviceDiscoveryRegistry) getExportedUrlsByInst(serviceInstance registry.ServiceInstance) []*common.URL {
+	var urls []*common.URL
 	metadataStorageType := getExportedStoreType(serviceInstance)
 	proxyFactory := extension.GetMetadataServiceProxyFactory(metadataStorageType)
 	if proxyFactory == nil {
@@ -381,7 +363,7 @@
 		return urls
 	}
 
-	ret := make([]common.URL, 0, len(result))
+	ret := make([]*common.URL, 0, len(result))
 	for _, ui := range result {
 
 		u, err := common.NewURL(ui.(string))
@@ -464,18 +446,18 @@
 		logger.Errorf("get service instance selector cathe error:%s", err.Error())
 		return nil
 	}
-	return selector.Select(*s.url, serviceInstances)
+	return selector.Select(s.url, serviceInstances)
 }
 
-func (s *serviceDiscoveryRegistry) initRevisionExportedURLsByInst(serviceInstance registry.ServiceInstance) []common.URL {
+func (s *serviceDiscoveryRegistry) initRevisionExportedURLsByInst(serviceInstance registry.ServiceInstance) []*common.URL {
 	if serviceInstance == nil {
-		return []common.URL{}
+		return nil
 	}
 	serviceName := serviceInstance.GetServiceName()
 	revision := getExportedServicesRevision(serviceInstance)
 	revisionExportedURLsMap := s.serviceRevisionExportedURLsCache[serviceName]
 	if revisionExportedURLsMap == nil {
-		revisionExportedURLsMap = make(map[string][]common.URL, 4)
+		revisionExportedURLsMap = make(map[string][]*common.URL, 4)
 		s.serviceRevisionExportedURLsCache[serviceName] = revisionExportedURLsMap
 	}
 	revisionExportedURLs := revisionExportedURLsMap[revision]
@@ -521,11 +503,11 @@
 	return result
 }
 
-func (s *serviceDiscoveryRegistry) cloneExportedURLs(url common.URL, serviceInsances []registry.ServiceInstance) []common.URL {
+func (s *serviceDiscoveryRegistry) cloneExportedURLs(url *common.URL, serviceInsances []registry.ServiceInstance) []*common.URL {
 	if len(serviceInsances) == 0 {
-		return []common.URL{}
+		return []*common.URL{}
 	}
-	var clonedExportedURLs []common.URL
+	var clonedExportedURLs []*common.URL
 	removeParamSet := gxset.NewSet()
 	removeParamSet.Add(constant.PID_KEY)
 	removeParamSet.Add(constant.TIMESTAMP_KEY)
@@ -540,7 +522,7 @@
 			}
 
 			cloneUrl := u.CloneExceptParams(removeParamSet)
-			clonedExportedURLs = append(clonedExportedURLs, *cloneUrl)
+			clonedExportedURLs = append(clonedExportedURLs, cloneUrl)
 		}
 	}
 	return clonedExportedURLs
@@ -548,8 +530,8 @@
 }
 
 type endpoint struct {
-	Port     int    `json:"port, omitempty"`
-	Protocol string `json:"protocol, omitempty"`
+	Port     int    `json:"port,omitempty"`
+	Protocol string `json:"protocol,omitempty"`
 }
 
 func getProtocolPort(serviceInstance registry.ServiceInstance, protocol string) int {
@@ -571,38 +553,38 @@
 	}
 	return -1
 }
-func (s *serviceDiscoveryRegistry) getTemplateExportedURLs(url common.URL, serviceInstance registry.ServiceInstance) []common.URL {
+func (s *serviceDiscoveryRegistry) getTemplateExportedURLs(url *common.URL, serviceInstance registry.ServiceInstance) []*common.URL {
 	exportedURLs := s.getRevisionExportedURLs(serviceInstance)
 	if len(exportedURLs) == 0 {
-		return []common.URL{}
+		return []*common.URL{}
 	}
 	return filterSubscribedURLs(url, exportedURLs)
 }
 
-func (s *serviceDiscoveryRegistry) getRevisionExportedURLs(serviceInstance registry.ServiceInstance) []common.URL {
+func (s *serviceDiscoveryRegistry) getRevisionExportedURLs(serviceInstance registry.ServiceInstance) []*common.URL {
 	if serviceInstance == nil {
-		return []common.URL{}
+		return []*common.URL{}
 	}
 	serviceName := serviceInstance.GetServiceName()
 	revision := getExportedServicesRevision(serviceInstance)
 	s.lock.RLock()
 	revisionExportedURLsMap, exist := s.serviceRevisionExportedURLsCache[serviceName]
 	if !exist {
-		return []common.URL{}
+		return []*common.URL{}
 	}
 	exportedURLs, exist := revisionExportedURLsMap[revision]
 	if !exist {
-		return []common.URL{}
+		return []*common.URL{}
 	}
 	s.lock.RUnlock()
 	// Get a copy from source in order to prevent the caller trying to change the cached data
-	cloneExportedURLs := make([]common.URL, len(exportedURLs))
+	cloneExportedURLs := make([]*common.URL, len(exportedURLs))
 	copy(cloneExportedURLs, exportedURLs)
 	return cloneExportedURLs
 }
 
-func filterSubscribedURLs(subscribedURL common.URL, exportedURLs []common.URL) []common.URL {
-	var filterExportedURLs []common.URL
+func filterSubscribedURLs(subscribedURL *common.URL, exportedURLs []*common.URL) []*common.URL {
+	var filterExportedURLs []*common.URL
 	for _, url := range exportedURLs {
 		if url.GetParam(constant.INTERFACE_KEY, url.Path) != subscribedURL.GetParam(constant.INTERFACE_KEY, url.Path) {
 			break
diff --git a/registry/servicediscovery/service_discovery_registry_test.go b/registry/servicediscovery/service_discovery_registry_test.go
index 53eb865..ad6b73d 100644
--- a/registry/servicediscovery/service_discovery_registry_test.go
+++ b/registry/servicediscovery/service_discovery_registry_test.go
@@ -76,7 +76,7 @@
 		"&service_discovery=mock" +
 		"&methods=getAllServiceKeys,getServiceRestMetadata,getExportedURLs,getAllExportedURLs" +
 		"&side=provider")
-	registry, err := newServiceDiscoveryRegistry(&registryURL)
+	registry, err := newServiceDiscoveryRegistry(registryURL)
 	assert.Nil(t, err)
 	assert.NotNil(t, registry)
 	registry.Register(url)
@@ -85,19 +85,19 @@
 type mockEventDispatcher struct {
 }
 
-func (m *mockEventDispatcher) AddEventListener(listener observer.EventListener) {
+func (m *mockEventDispatcher) AddEventListener(observer.EventListener) {
 
 }
 
-func (m *mockEventDispatcher) AddEventListeners(listenersSlice []observer.EventListener) {
+func (m *mockEventDispatcher) AddEventListeners([]observer.EventListener) {
 
 }
 
-func (m *mockEventDispatcher) RemoveEventListener(listener observer.EventListener) {
+func (m *mockEventDispatcher) RemoveEventListener(observer.EventListener) {
 	panic("implement me")
 }
 
-func (m *mockEventDispatcher) RemoveEventListeners(listenersSlice []observer.EventListener) {
+func (m *mockEventDispatcher) RemoveEventListeners([]observer.EventListener) {
 	panic("implement me")
 }
 
@@ -109,17 +109,17 @@
 	panic("implement me")
 }
 
-func (m *mockEventDispatcher) Dispatch(event observer.Event) {
+func (m *mockEventDispatcher) Dispatch(observer.Event) {
 }
 
 type mockServiceNameMapping struct {
 }
 
-func (m *mockServiceNameMapping) Map(serviceInterface string, group string, version string, protocol string) error {
+func (m *mockServiceNameMapping) Map(string, string, string, string) error {
 	return nil
 }
 
-func (m *mockServiceNameMapping) Get(serviceInterface string, group string, version string, protocol string) (*gxset.HashSet, error) {
+func (m *mockServiceNameMapping) Get(string, string, string, string) (*gxset.HashSet, error) {
 	panic("implement me")
 }
 
@@ -134,15 +134,15 @@
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) Register(instance registry.ServiceInstance) error {
+func (m *mockServiceDiscovery) Register(registry.ServiceInstance) error {
 	return nil
 }
 
-func (m *mockServiceDiscovery) Update(instance registry.ServiceInstance) error {
+func (m *mockServiceDiscovery) Update(registry.ServiceInstance) error {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) Unregister(instance registry.ServiceInstance) error {
+func (m *mockServiceDiscovery) Unregister(registry.ServiceInstance) error {
 	panic("implement me")
 }
 
@@ -154,35 +154,35 @@
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) GetInstances(serviceName string) []registry.ServiceInstance {
+func (m *mockServiceDiscovery) GetInstances(string) []registry.ServiceInstance {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) GetInstancesByPage(serviceName string, offset int, pageSize int) gxpage.Pager {
+func (m *mockServiceDiscovery) GetInstancesByPage(string, int, int) gxpage.Pager {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) GetHealthyInstancesByPage(serviceName string, offset int, pageSize int, healthy bool) gxpage.Pager {
+func (m *mockServiceDiscovery) GetHealthyInstancesByPage(string, int, int, bool) gxpage.Pager {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) GetRequestInstances(serviceNames []string, offset int, requestedSize int) map[string]gxpage.Pager {
+func (m *mockServiceDiscovery) GetRequestInstances([]string, int, int) map[string]gxpage.Pager {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) AddListener(listener *registry.ServiceInstancesChangedListener) error {
+func (m *mockServiceDiscovery) AddListener(*registry.ServiceInstancesChangedListener) error {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) DispatchEventByServiceName(serviceName string) error {
+func (m *mockServiceDiscovery) DispatchEventByServiceName(string) error {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) DispatchEventForInstances(serviceName string, instances []registry.ServiceInstance) error {
+func (m *mockServiceDiscovery) DispatchEventForInstances(string, []registry.ServiceInstance) error {
 	panic("implement me")
 }
 
-func (m *mockServiceDiscovery) DispatchEvent(event *registry.ServiceInstancesChangedEvent) error {
+func (m *mockServiceDiscovery) DispatchEvent(*registry.ServiceInstancesChangedEvent) error {
 	panic("implement me")
 }
 
@@ -197,27 +197,27 @@
 	panic("implement me")
 }
 
-func (m *mockMetadataService) ExportURL(url common.URL) (bool, error) {
+func (m *mockMetadataService) ExportURL(*common.URL) (bool, error) {
 	return true, nil
 }
 
-func (m *mockMetadataService) UnexportURL(url common.URL) error {
+func (m *mockMetadataService) UnexportURL(*common.URL) error {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) SubscribeURL(url common.URL) (bool, error) {
+func (m *mockMetadataService) SubscribeURL(*common.URL) (bool, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) UnsubscribeURL(url common.URL) error {
+func (m *mockMetadataService) UnsubscribeURL(*common.URL) error {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) PublishServiceDefinition(url common.URL) error {
+func (m *mockMetadataService) PublishServiceDefinition(*common.URL) error {
 	return nil
 }
 
-func (m *mockMetadataService) GetExportedURLs(serviceInterface string, group string, version string, protocol string) ([]interface{}, error) {
+func (m *mockMetadataService) GetExportedURLs(string, string, string, string) ([]interface{}, error) {
 	panic("implement me")
 }
 
@@ -225,19 +225,19 @@
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetSubscribedURLs() ([]common.URL, error) {
+func (m *mockMetadataService) GetSubscribedURLs() ([]*common.URL, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetServiceDefinition(interfaceName string, group string, version string) (string, error) {
+func (m *mockMetadataService) GetServiceDefinition(string, string, string) (string, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) GetServiceDefinitionByServiceKey(serviceKey string) (string, error) {
+func (m *mockMetadataService) GetServiceDefinitionByServiceKey(string) (string, error) {
 	panic("implement me")
 }
 
-func (m *mockMetadataService) RefreshMetadata(exportedRevision string, subscribedRevision string) (bool, error) {
+func (m *mockMetadataService) RefreshMetadata(string, string) (bool, error) {
 	panic("implement me")
 }
 
diff --git a/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer.go b/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer.go
index 086a26d..d1ab611 100644
--- a/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer.go
+++ b/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer.go
@@ -44,8 +44,8 @@
 	return false
 }
 
-func (r RestSubscribedURLsSynthesizer) Synthesize(subscribedURL *common.URL, serviceInstances []registry.ServiceInstance) []common.URL {
-	urls := make([]common.URL, len(serviceInstances), len(serviceInstances))
+func (r RestSubscribedURLsSynthesizer) Synthesize(subscribedURL *common.URL, serviceInstances []registry.ServiceInstance) []*common.URL {
+	urls := make([]*common.URL, len(serviceInstances), len(serviceInstances))
 	for i, s := range serviceInstances {
 		splitHost := strings.Split(s.GetHost(), ":")
 		u := common.NewURLWithOptions(common.WithProtocol(subscribedURL.Protocol), common.WithIp(splitHost[0]),
@@ -55,7 +55,7 @@
 			common.WithParamsValue(constant.APPLICATION_KEY, s.GetServiceName()),
 			common.WithParamsValue(constant.REGISTRY_KEY, "true"),
 		)
-		urls[i] = *u
+		urls[i] = u
 	}
 	return urls
 }
diff --git a/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer_test.go b/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer_test.go
index b52cc23..1bb38c9 100644
--- a/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer_test.go
+++ b/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer_test.go
@@ -56,7 +56,7 @@
 		},
 	}
 
-	var expectUrls []common.URL
+	var expectUrls []*common.URL
 	u1 := common.NewURLWithOptions(common.WithProtocol("rest"), common.WithIp("127.0.0.1"),
 		common.WithPort("80"), common.WithPath("org.apache.dubbo-go.mockService"),
 		common.WithParams(url.Values{}),
@@ -69,7 +69,7 @@
 		common.WithParamsValue(constant.SIDE_KEY, constant.PROVIDER_PROTOCOL),
 		common.WithParamsValue(constant.APPLICATION_KEY, "test2"),
 		common.WithParamsValue(constant.REGISTRY_KEY, "true"))
-	expectUrls = append(expectUrls, *u1, *u2)
-	result := syn.Synthesize(&subUrl, instances)
+	expectUrls = append(expectUrls, u1, u2)
+	result := syn.Synthesize(subUrl, instances)
 	assert.Equal(t, expectUrls, result)
 }
diff --git a/registry/servicediscovery/synthesizer/subscribed_urls_synthesizer.go b/registry/servicediscovery/synthesizer/subscribed_urls_synthesizer.go
index 415ca35..557c86e 100644
--- a/registry/servicediscovery/synthesizer/subscribed_urls_synthesizer.go
+++ b/registry/servicediscovery/synthesizer/subscribed_urls_synthesizer.go
@@ -27,5 +27,5 @@
 	// Supports the synthesis of the subscribed url or not
 	Support(subscribedURL *common.URL) bool
 	// synthesize the subscribed url
-	Synthesize(subscribedURL *common.URL, serviceInstances []registry.ServiceInstance) []common.URL
+	Synthesize(subscribedURL *common.URL, serviceInstances []registry.ServiceInstance) []*common.URL
 }
diff --git a/registry/zookeeper/listener.go b/registry/zookeeper/listener.go
index ec82fa0..3b8a51e 100644
--- a/registry/zookeeper/listener.go
+++ b/registry/zookeeper/listener.go
@@ -158,7 +158,7 @@
 			//r.update(e.res)
 			//write to invoker
 			//r.outerEventCh <- e.res
-			return &registry.ServiceEvent{Action: e.ConfigType, Service: e.Value.(common.URL)}, nil
+			return &registry.ServiceEvent{Action: e.ConfigType, Service: e.Value.(*common.URL)}, nil
 		}
 	}
 }
diff --git a/registry/zookeeper/listener_test.go b/registry/zookeeper/listener_test.go
index a0e9147..20ec1cf 100644
--- a/registry/zookeeper/listener_test.go
+++ b/registry/zookeeper/listener_test.go
@@ -34,7 +34,7 @@
 func Test_DataChange(t *testing.T) {
 	listener := NewRegistryDataListener()
 	url, _ := common.NewURL("jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-1.3.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100")
-	listener.SubscribeURL(&url, &MockConfigurationListener{})
+	listener.SubscribeURL(url, &MockConfigurationListener{})
 	int := listener.DataChange(remoting.Event{Path: "/dubbo/com.ikurento.user.UserProvider/providers/jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-1.3.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100"})
 	assert.Equal(t, true, int)
 }
diff --git a/registry/zookeeper/registry_test.go b/registry/zookeeper/registry_test.go
index d915fc2..e630db7 100644
--- a/registry/zookeeper/registry_test.go
+++ b/registry/zookeeper/registry_test.go
@@ -37,7 +37,7 @@
 	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithParamsValue("serviceid", "soa.mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	ts, reg, _ := newMockZkRegistry(&regurl)
+	ts, reg, _ := newMockZkRegistry(regurl)
 	defer ts.Stop()
 	err := reg.Register(url)
 	children, _ := reg.client.GetChildren("/dubbo/com.ikurento.user.UserProvider/providers")
@@ -50,7 +50,7 @@
 	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithParamsValue("serviceid", "soa.mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	ts, reg, _ := newMockZkRegistry(&regurl)
+	ts, reg, _ := newMockZkRegistry(regurl)
 	defer ts.Stop()
 	err := reg.Register(url)
 	children, _ := reg.client.GetChildren("/dubbo/com.ikurento.user.UserProvider/providers")
@@ -73,7 +73,7 @@
 func Test_Subscribe(t *testing.T) {
 	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
-	ts, reg, _ := newMockZkRegistry(&regurl)
+	ts, reg, _ := newMockZkRegistry(regurl)
 
 	//provider register
 	err := reg.Register(url)
@@ -85,10 +85,10 @@
 
 	//consumer register
 	regurl.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
-	_, reg2, _ := newMockZkRegistry(&regurl, zookeeper.WithTestCluster(ts))
+	_, reg2, _ := newMockZkRegistry(regurl, zookeeper.WithTestCluster(ts))
 
 	reg2.Register(url)
-	listener, _ := reg2.DoSubscribe(&url)
+	listener, _ := reg2.DoSubscribe(url)
 
 	serviceEvent, _ := listener.Next()
 	assert.NoError(t, err)
@@ -102,7 +102,7 @@
 func Test_UnSubscribe(t *testing.T) {
 	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
-	ts, reg, _ := newMockZkRegistry(&regurl)
+	ts, reg, _ := newMockZkRegistry(regurl)
 
 	//provider register
 	err := reg.Register(url)
@@ -114,10 +114,10 @@
 
 	//consumer register
 	regurl.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
-	_, reg2, _ := newMockZkRegistry(&regurl, zookeeper.WithTestCluster(ts))
+	_, reg2, _ := newMockZkRegistry(regurl, zookeeper.WithTestCluster(ts))
 
 	reg2.Register(url)
-	listener, _ := reg2.DoSubscribe(&url)
+	listener, _ := reg2.DoSubscribe(url)
 
 	serviceEvent, _ := listener.Next()
 	assert.NoError(t, err)
@@ -126,7 +126,7 @@
 	}
 	assert.Regexp(t, ".*ServiceEvent{Action{add}.*", serviceEvent.String())
 
-	reg2.UnSubscribe(&url, nil)
+	reg2.UnSubscribe(url, nil)
 	assert.Nil(t, reg2.listener)
 
 	defer ts.Stop()
@@ -136,13 +136,13 @@
 	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	ts, reg, err := newMockZkRegistry(&regurl)
+	ts, reg, err := newMockZkRegistry(regurl)
 	defer ts.Stop()
 
 	assert.NoError(t, err)
 	err = reg.Register(url)
 	assert.NoError(t, err)
-	_, err = reg.DoSubscribe(&url)
+	_, err = reg.DoSubscribe(url)
 	assert.NoError(t, err)
 
 	//listener.Close()
@@ -156,7 +156,7 @@
 	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	ts, reg, err := newMockZkRegistry(&regurl)
+	ts, reg, err := newMockZkRegistry(regurl)
 	defer ts.Stop()
 
 	assert.NoError(t, err)
diff --git a/registry/zookeeper/service_discovery.go b/registry/zookeeper/service_discovery.go
index 5ad83ef..6d9582f 100644
--- a/registry/zookeeper/service_discovery.go
+++ b/registry/zookeeper/service_discovery.go
@@ -154,8 +154,8 @@
 }
 
 // nolint
-func (zksd *zookeeperServiceDiscovery) GetUrl() common.URL {
-	return *zksd.url
+func (zksd *zookeeperServiceDiscovery) GetUrl() *common.URL {
+	return zksd.url
 }
 
 // nolint
diff --git a/remoting/etcdv3/listener.go b/remoting/etcdv3/listener.go
index 4f80a89..c66928a 100644
--- a/remoting/etcdv3/listener.go
+++ b/remoting/etcdv3/listener.go
@@ -129,8 +129,6 @@
 	default:
 		return false
 	}
-
-	panic("unreachable")
 }
 
 // ListenServiceNodeEventWithPrefix listens on a set of key with spec prefix
diff --git a/remoting/exchange_client.go b/remoting/exchange_client.go
index 26fa5d5..b3423eb 100644
--- a/remoting/exchange_client.go
+++ b/remoting/exchange_client.go
@@ -42,7 +42,7 @@
 	// responseHandler is used to deal with msg
 	SetResponseHandler(responseHandler ResponseHandler)
 	// connect url
-	Connect(url common.URL) error
+	Connect(url *common.URL) error
 	// close
 	Close()
 	// send request to server.
@@ -69,7 +69,7 @@
 }
 
 // create ExchangeClient
-func NewExchangeClient(url common.URL, client Client, connectTimeout time.Duration, lazyInit bool) *ExchangeClient {
+func NewExchangeClient(url *common.URL, client Client, connectTimeout time.Duration, lazyInit bool) *ExchangeClient {
 	exchangeClient := &ExchangeClient{
 		ConnectTimeout: connectTimeout,
 		address:        url.Location,
@@ -86,7 +86,7 @@
 	return exchangeClient
 }
 
-func (cl *ExchangeClient) doInit(url common.URL) error {
+func (cl *ExchangeClient) doInit(url *common.URL) error {
 	if cl.init {
 		return nil
 	}
@@ -104,7 +104,7 @@
 }
 
 // two way request
-func (client *ExchangeClient) Request(invocation *protocol.Invocation, url common.URL, timeout time.Duration,
+func (client *ExchangeClient) Request(invocation *protocol.Invocation, url *common.URL, timeout time.Duration,
 	result *protocol.RPCResult) error {
 	if er := client.doInit(url); er != nil {
 		return er
@@ -134,7 +134,7 @@
 }
 
 // async two way request
-func (client *ExchangeClient) AsyncRequest(invocation *protocol.Invocation, url common.URL, timeout time.Duration,
+func (client *ExchangeClient) AsyncRequest(invocation *protocol.Invocation, url *common.URL, timeout time.Duration,
 	callback common.AsyncCallback, result *protocol.RPCResult) error {
 	if er := client.doInit(url); er != nil {
 		return er
@@ -160,7 +160,7 @@
 }
 
 // oneway request
-func (client *ExchangeClient) Send(invocation *protocol.Invocation, url common.URL, timeout time.Duration) error {
+func (client *ExchangeClient) Send(invocation *protocol.Invocation, url *common.URL, timeout time.Duration) error {
 	if er := client.doInit(url); er != nil {
 		return er
 	}
@@ -204,7 +204,7 @@
 
 	if pendingResponse.Callback == nil {
 		pendingResponse.Err = pendingResponse.response.Error
-		pendingResponse.Done <- struct{}{}
+		close(pendingResponse.Done)
 	} else {
 		pendingResponse.Callback(pendingResponse.GetCallResponse())
 	}
diff --git a/remoting/exchange_server.go b/remoting/exchange_server.go
index a31e994..a8d7c73 100644
--- a/remoting/exchange_server.go
+++ b/remoting/exchange_server.go
@@ -32,11 +32,11 @@
 // This is abstraction level. it is like facade.
 type ExchangeServer struct {
 	Server Server
-	Url    common.URL
+	Url    *common.URL
 }
 
 // Create ExchangeServer
-func NewExchangeServer(url common.URL, server Server) *ExchangeServer {
+func NewExchangeServer(url *common.URL, server Server) *ExchangeServer {
 	exchangServer := &ExchangeServer{
 		Server: server,
 		Url:    url,
diff --git a/remoting/getty/dubbo_codec_for_test.go b/remoting/getty/dubbo_codec_for_test.go
index b91fc9f..fca5da8 100644
--- a/remoting/getty/dubbo_codec_for_test.go
+++ b/remoting/getty/dubbo_codec_for_test.go
@@ -55,15 +55,15 @@
 	if !ok {
 		return nil, perrors.Errorf("encode request failed for parameter type :%+v", request)
 	}
-	invocation := *invoc
+	tmpInvocation := invoc
 
 	svc := impl.Service{}
-	svc.Path = invocation.AttachmentsByKey(constant.PATH_KEY, "")
-	svc.Interface = invocation.AttachmentsByKey(constant.INTERFACE_KEY, "")
-	svc.Version = invocation.AttachmentsByKey(constant.VERSION_KEY, "")
-	svc.Group = invocation.AttachmentsByKey(constant.GROUP_KEY, "")
-	svc.Method = invocation.MethodName()
-	timeout, err := strconv.Atoi(invocation.AttachmentsByKey(constant.TIMEOUT_KEY, strconv.Itoa(constant.DEFAULT_REMOTING_TIMEOUT)))
+	svc.Path = tmpInvocation.AttachmentsByKey(constant.PATH_KEY, "")
+	svc.Interface = tmpInvocation.AttachmentsByKey(constant.INTERFACE_KEY, "")
+	svc.Version = tmpInvocation.AttachmentsByKey(constant.VERSION_KEY, "")
+	svc.Group = tmpInvocation.AttachmentsByKey(constant.GROUP_KEY, "")
+	svc.Method = tmpInvocation.MethodName()
+	timeout, err := strconv.Atoi(tmpInvocation.AttachmentsByKey(constant.TIMEOUT_KEY, strconv.Itoa(constant.DEFAULT_REMOTING_TIMEOUT)))
 	if err != nil {
 		// it will be wrapped in readwrite.Write .
 		return nil, perrors.WithStack(err)
@@ -71,7 +71,7 @@
 	svc.Timeout = time.Duration(timeout)
 
 	header := impl.DubboHeader{}
-	serialization := invocation.AttachmentsByKey(constant.SERIALIZATION_KEY, constant.HESSIAN2_SERIALIZATION)
+	serialization := tmpInvocation.AttachmentsByKey(constant.SERIALIZATION_KEY, constant.HESSIAN2_SERIALIZATION)
 	if serialization == constant.PROTOBUF_SERIALIZATION {
 		header.SerialID = constant.S_Proto
 	} else {
@@ -87,7 +87,7 @@
 	pkg := &impl.DubboPackage{
 		Header:  header,
 		Service: svc,
-		Body:    impl.NewRequestPayload(invocation.Arguments(), invocation.Attachments()),
+		Body:    impl.NewRequestPayload(tmpInvocation.Arguments(), tmpInvocation.Attachments()),
 		Err:     nil,
 		Codec:   impl.NewDubboCodec(nil),
 	}
diff --git a/remoting/getty/getty_client.go b/remoting/getty/getty_client.go
index 7edc1cf..d4d20d9 100644
--- a/remoting/getty/getty_client.go
+++ b/remoting/getty/getty_client.go
@@ -151,7 +151,7 @@
 }
 
 // init client and try to connection.
-func (c *Client) Connect(url common.URL) error {
+func (c *Client) Connect(url *common.URL) error {
 	initClient(url.Protocol)
 	c.conf = *clientConf
 	// new client
diff --git a/remoting/getty/getty_client_test.go b/remoting/getty/getty_client_test.go
index 41ca310..6b8e3ec 100644
--- a/remoting/getty/getty_client_test.go
+++ b/remoting/getty/getty_client_test.go
@@ -51,7 +51,7 @@
 	svr.Stop()
 }
 
-func testRequestOneWay(t *testing.T, svr *Server, url common.URL, client *Client) {
+func testRequestOneWay(t *testing.T, svr *Server, url *common.URL, client *Client) {
 
 	request := remoting.NewRequest("2.0.2")
 	up := &UserProvider{}
@@ -80,7 +80,7 @@
 	}
 }
 
-func getClient(url common.URL) *Client {
+func getClient(url *common.URL) *Client {
 	client := NewClient(Options{
 		ConnectTimeout: config.GetConsumerConfig().ConnectTimeout,
 	})
@@ -92,7 +92,7 @@
 	return client
 }
 
-func testClient_Call(t *testing.T, svr *Server, url common.URL, c *Client) {
+func testClient_Call(t *testing.T, svr *Server, url *common.URL, c *Client) {
 	c.pool = newGettyRPCClientConnPool(c, clientConf.PoolSize, time.Duration(int(time.Second)*clientConf.PoolTTL))
 
 	testGetBigPkg(t, c)
@@ -309,7 +309,7 @@
 	assert.Equal(t, User{Id: "1", Name: ""}, *user)
 }
 
-func testClient_AsyncCall(t *testing.T, svr *Server, url common.URL, client *Client) {
+func testClient_AsyncCall(t *testing.T, svr *Server, url *common.URL, client *Client) {
 	user := &User{}
 	lock := sync.Mutex{}
 	request := remoting.NewRequest("2.0.2")
@@ -337,7 +337,7 @@
 	time.Sleep(1 * time.Second)
 }
 
-func InitTest(t *testing.T) (*Server, common.URL) {
+func InitTest(t *testing.T) (*Server, *common.URL) {
 
 	hessian.RegisterPOJO(&User{})
 	remoting.RegistryCodec("dubbo", &DubboTestCodec{})
diff --git a/remoting/getty/getty_server.go b/remoting/getty/getty_server.go
index 7c8fa29..ab574ec 100644
--- a/remoting/getty/getty_server.go
+++ b/remoting/getty/getty_server.go
@@ -117,7 +117,7 @@
 }
 
 // NewServer create a new Server
-func NewServer(url common.URL, handlers func(*invocation.RPCInvocation) protocol.RPCResult) *Server {
+func NewServer(url *common.URL, handlers func(*invocation.RPCInvocation) protocol.RPCResult) *Server {
 	//init
 	initServer(url.Protocol)
 
diff --git a/remoting/getty/listener.go b/remoting/getty/listener.go
index 196aa20..d4819a1 100644
--- a/remoting/getty/listener.go
+++ b/remoting/getty/listener.go
@@ -153,7 +153,9 @@
 		return
 	}
 
-	h.conn.pool.rpcClient.heartbeat(session)
+	if err := h.conn.pool.rpcClient.heartbeat(session); err != nil {
+		logger.Warnf("failed to send heartbeat, error: %v", err)
+	}
 }
 
 // //////////////////////////////////////////
@@ -272,7 +274,6 @@
 	invoc, ok := req.Data.(*invocation.RPCInvocation)
 	if !ok {
 		panic("create invocation occur some exception for the type is not suitable one.")
-		return
 	}
 	attachments := invoc.Attachments()
 	attachments[constant.LOCAL_ADDR] = session.LocalAddr()
diff --git a/remoting/kubernetes/client.go b/remoting/kubernetes/client.go
index 0a05489..fce9e80 100644
--- a/remoting/kubernetes/client.go
+++ b/remoting/kubernetes/client.go
@@ -47,7 +47,7 @@
 }
 
 // newClient returns Client instance for registry
-func newClient(url common.URL) (*Client, error) {
+func newClient(url *common.URL) (*Client, error) {
 
 	ctx, cancel := context.WithCancel(context.Background())
 
diff --git a/remoting/kubernetes/facade_test.go b/remoting/kubernetes/facade_test.go
index 65c5d71..00e2e11 100644
--- a/remoting/kubernetes/facade_test.go
+++ b/remoting/kubernetes/facade_test.go
@@ -43,8 +43,8 @@
 	r.client = client
 }
 
-func (r *mockFacade) GetUrl() common.URL {
-	return *r.URL
+func (r *mockFacade) GetUrl() *common.URL {
+	return r.URL
 }
 
 func (r *mockFacade) Destroy() {
@@ -68,7 +68,7 @@
 
 	mockClient := getTestClient(t)
 	m := &mockFacade{
-		URL:    &regUrl,
+		URL:    regUrl,
 		client: mockClient,
 	}
 
diff --git a/remoting/zookeeper/facade.go b/remoting/zookeeper/facade.go
index 2a03439..4dc0a54 100644
--- a/remoting/zookeeper/facade.go
+++ b/remoting/zookeeper/facade.go
@@ -37,7 +37,7 @@
 	WaitGroup() *sync.WaitGroup // for wait group control, zk client listener & zk client container
 	Done() chan struct{}        // for zk client control
 	RestartCallBack() bool
-	GetUrl() common.URL
+	GetUrl() *common.URL
 }
 
 // HandleClientRestart keeps the connection between client and server
diff --git a/remoting/zookeeper/facade_test.go b/remoting/zookeeper/facade_test.go
index 1cd8f06..3d5798c 100644
--- a/remoting/zookeeper/facade_test.go
+++ b/remoting/zookeeper/facade_test.go
@@ -68,8 +68,8 @@
 	return r.done
 }
 
-func (r *mockFacade) GetUrl() common.URL {
-	return *r.URL
+func (r *mockFacade) GetUrl() *common.URL {
+	return r.URL
 }
 
 func (r *mockFacade) Destroy() {
@@ -90,7 +90,7 @@
 	assert.NoError(t, err)
 	defer ts.Stop()
 	url, _ := common.NewURL("mock://127.0.0.1")
-	mock := newMockFacade(z, &url)
+	mock := newMockFacade(z, url)
 	go HandleClientRestart(mock)
 	states := []zk.State{zk.StateConnecting, zk.StateConnected, zk.StateHasSession}
 	verifyEventStateOrder(t, event, states, "event channel")