Repository: go-kratos/kratos
Pull request #2610 (2023-01-09 08:32:31)

feat(transport): add grpc client stream interceptor opts


Patch:
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index fe89b765..3a6bcb31 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -13,7 +13,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go: [1.16, 1.17, 1.18, 1.19]
+        go: [1.18,1.19]
     name: build & test
     runs-on: ubuntu-latest
     services:
@@ -36,7 +36,7 @@ jobs:
           - "8848:8848"
           - "9848:9848"
       polaris:
-        image: polarismesh/polaris-server-standalone:v1.9.0
+        image: polarismesh/polaris-server-standalone:v1.13.3
         ports:
           - 8090:8090
           - 8091:8091
@@ -48,6 +48,21 @@ jobs:
         with:
           go-version: ${{ matrix.go }}
 
+      - name: Setup Environment
+        run: |
+          echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
+          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
+
+      - name: Module cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go
+
       - name: Build
         run: go build ./...
 
@@ -67,4 +82,4 @@ jobs:
         run: |
           cd cmd/protoc-gen-go-http
           go build ./...
-          go test ./...
+          go test ./...
\ No newline at end of file
diff --git a/cmd/kratos/internal/project/project.go b/cmd/kratos/internal/project/project.go
index 52ca6642..9abc98b7 100644
--- a/cmd/kratos/internal/project/project.go
+++ b/cmd/kratos/internal/project/project.go
@@ -74,12 +74,13 @@ func run(cmd *cobra.Command, args []string) {
 			done <- p.New(ctx, wd, repoURL, branch)
 			return
 		}
-		if _, e := os.Stat(path.Join(wd, "go.mod")); os.IsNotExist(e) {
-			done <- fmt.Errorf("🚫 go.mod don't exists in %s", wd)
+		projectRoot := getgomodProjectRoot(wd)
+		if gomodIsNotExistIn(projectRoot) {
+			done <- fmt.Errorf("🚫 go.mod don't exists in %s", projectRoot)
 			return
 		}
 
-		mod, e := base.ModulePath(path.Join(wd, "go.mod"))
+		mod, e := base.ModulePath(path.Join(projectRoot, "go.mod"))
 		if e != nil {
 			panic(e)
 		}
@@ -123,3 +124,18 @@ func getProjectPlaceDir(projectName string, fallbackPlaceDir string) string {
 	// create project logic will check stat,so not check path stat here
 	return filepath.Dir(projectFullPath)
 }
+
+func getgomodProjectRoot(dir string) string {
+	if dir == filepath.Dir(dir) {
+		return dir
+	}
+	if gomodIsNotExistIn(dir) {
+		return getgomodProjectRoot(filepath.Dir(dir))
+	}
+	return dir
+}
+
+func gomodIsNotExistIn(dir string) bool {
+	_, e := os.Stat(path.Join(dir, "go.mod"))
+	return os.IsNotExist(e)
+}
diff --git a/contrib/config/apollo/go.sum b/contrib/config/apollo/go.sum
index d6fe9ac4..c39120bf 100644
--- a/contrib/config/apollo/go.sum
+++ b/contrib/config/apollo/go.sum
@@ -127,7 +127,7 @@ github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
@@ -370,6 +370,7 @@ github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1
 github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
 github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
 github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
 github.com/spf13/afero v1.8.2 h1:xehSyVa0YnHWsJ49JFljMpg1HX19V6NDZ1fkm1Xznbo=
 github.com/spf13/afero v1.8.2/go.mod h1:CtAatgMJh6bJEIs48Ay/FOnkljP3WeGUG0MC1RfAqwo=
diff --git a/contrib/config/consul/go.sum b/contrib/config/consul/go.sum
index 876018d0..b69a22a2 100644
--- a/contrib/config/consul/go.sum
+++ b/contrib/config/consul/go.sum
@@ -46,7 +46,7 @@ github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmV
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
@@ -208,6 +208,7 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
diff --git a/contrib/config/etcd/go.sum b/contrib/config/etcd/go.sum
index 5905957b..17ce107d 100644
--- a/contrib/config/etcd/go.sum
+++ b/contrib/config/etcd/go.sum
@@ -40,7 +40,7 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
@@ -140,6 +140,7 @@ github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
diff --git a/contrib/config/kubernetes/go.sum b/contrib/config/kubernetes/go.sum
index 8e40424b..68c969a1 100644
--- a/contrib/config/kubernetes/go.sum
+++ b/contrib/config/kubernetes/go.sum
@@ -96,7 +96,7 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v0.1.0/go.mod h1:ixOQHD9gLJUVQQ2ZOR7zLEifBX6tGkNJF4QyIY7sIas=
 github.com/go-logr/logr v0.2.0/go.mod h1:z6/tIYblkpsD+a4lm/fGIIU9mZ+XfAiaFtq7xTgseGU=
 github.com/go-logr/logr v1.2.0/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
@@ -272,6 +272,7 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spf13/afero v1.2.2/go.mod h1:9ZxEEn6pIJ8Rxe320qSDBk6AsU0r9pR7Q4OcevTdifk=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
diff --git a/contrib/config/nacos/go.mod b/contrib/config/nacos/go.mod
index 6917f24a..145dc0a2 100644
--- a/contrib/config/nacos/go.mod
+++ b/contrib/config/nacos/go.mod
@@ -7,9 +7,7 @@ require (
 	github.com/nacos-group/nacos-sdk-go v1.0.9
 )
 
-require (
-	gopkg.in/yaml.v3 v3.0.1 // indirect
-)
+require gopkg.in/yaml.v3 v3.0.1 // indirect
 
 replace github.com/go-kratos/kratos/v2 => ../../../
 
diff --git a/contrib/config/nacos/go.sum b/contrib/config/nacos/go.sum
index 7b89f2c3..3b6ee362 100644
--- a/contrib/config/nacos/go.sum
+++ b/contrib/config/nacos/go.sum
@@ -32,7 +32,7 @@ github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmV
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -118,6 +118,7 @@ github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykE
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a h1:pa8hGb/2YqsZKovtsgrwcDH1RZhVbTKCjLp47XpqCDs=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
diff --git a/contrib/config/polaris/go.sum b/contrib/config/polaris/go.sum
index 029908d7..4a1e087b 100644
--- a/contrib/config/polaris/go.sum
+++ b/contrib/config/polaris/go.sum
@@ -84,7 +84,7 @@ github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-kit/log v0.2.0/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBjv0=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
diff --git a/contrib/encoding/msgpack/go.sum b/contrib/encoding/msgpack/go.sum
index 53696eb3..8b8f1492 100644
--- a/contrib/encoding/msgpack/go.sum
+++ b/contrib/encoding/msgpack/go.sum
@@ -22,7 +22,7 @@ github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -63,6 +63,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
diff --git a/contrib/log/aliyun/go.sum b/contrib/log/aliyun/go.sum
index c246bfb9..de568bab 100644
--- a/contrib/log/aliyun/go.sum
+++ b/contrib/log/aliyun/go.sum
@@ -78,7 +78,7 @@ github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.10.0 h1:dXFJfIHVvUcpSgDOV+Ne6t7jXri8Tfv2uOLHUZ2XNuo=
 github.com/go-kit/kit v0.10.0/go.mod h1:xUsJbQ/Fp4kEt7AFgCuvyX4a71u8h9jB8tj/ORgOZ7o=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0 h1:TrB8swr/68K7m9CcGut2g3UOihhbcbiMAYiuTXdEih4=
@@ -280,6 +280,7 @@ github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1
 github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
 github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
 github.com/sony/gobreaker v0.4.1/go.mod h1:ZKptC7FHNvhBz7dN2LGjPVBz2sZJmc0/PkyDJOjmxWY=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
 github.com/spf13/pflag v1.0.1/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/streadway/amqp v0.0.0-20190404075320-75d898a42a94/go.mod h1:AZpEONHx3DKn8O/DFsRAY58/XVQiIPMTMB1SddzLXVw=
diff --git a/contrib/log/fluent/go.sum b/contrib/log/fluent/go.sum
index 2b5751ef..f07ced67 100644
--- a/contrib/log/fluent/go.sum
+++ b/contrib/log/fluent/go.sum
@@ -26,7 +26,7 @@ github.com/fluent/fluent-logger-golang v1.9.0 h1:zUdY44CHX2oIUc7VTNZc+4m+ORuO/ml
 github.com/fluent/fluent-logger-golang v1.9.0/go.mod h1:2/HCT/jTy78yGyeNGQLGQsjF3zzzAuy6Xlk6FCMV5eU=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -77,6 +77,7 @@ github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6L
 github.com/rogpeppe/go-internal v1.6.1 h1:/FiVV8dS/e+YqF2JvO3yXRFbBLTIuSDkuC7aBOAvL+k=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
diff --git a/contrib/log/logrus/go.sum b/contrib/log/logrus/go.sum
index c8ee9b37..12cec595 100644
--- a/contrib/log/logrus/go.sum
+++ b/contrib/log/logrus/go.sum
@@ -23,7 +23,7 @@ github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -66,6 +66,7 @@ github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6L
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
 github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
 github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
diff --git a/contrib/log/tencent/go.sum b/contrib/log/tencent/go.sum
index 993b044f..e1194a48 100644
--- a/contrib/log/tencent/go.sum
+++ b/contrib/log/tencent/go.sum
@@ -26,7 +26,7 @@ github.com/frankban/quicktest v1.14.0 h1:+cqqvzZV87b4adx/5ayVOaYZ2CrvM4ejQvUdBzP
 github.com/frankban/quicktest v1.14.0/go.mod h1:NeW+ay9A/U67EYXNFA1nPE8e/tnQv/09mUdL/ijj8og=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -82,6 +82,7 @@ github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6L
 github.com/rogpeppe/go-internal v1.6.1 h1:/FiVV8dS/e+YqF2JvO3yXRFbBLTIuSDkuC7aBOAvL+k=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
diff --git a/contrib/log/zap/go.sum b/contrib/log/zap/go.sum
index 5c9de790..3d74106e 100644
--- a/contrib/log/zap/go.sum
+++ b/contrib/log/zap/go.sum
@@ -25,7 +25,7 @@ github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -71,6 +71,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
diff --git a/contrib/metrics/datadog/go.mod b/contrib/metrics/datadog/go.mod
index b22074da..dc765e8b 100644
--- a/contrib/metrics/datadog/go.mod
+++ b/contrib/metrics/datadog/go.mod
@@ -7,8 +7,6 @@ require (
 	github.com/go-kratos/kratos/v2 v2.5.3
 )
 
-require (
-	github.com/Microsoft/go-winio v0.5.2 // indirect
-)
+require github.com/Microsoft/go-winio v0.5.2 // indirect
 
 replace github.com/go-kratos/kratos/v2 => ../../../
diff --git a/contrib/metrics/datadog/go.sum b/contrib/metrics/datadog/go.sum
index d86ea6f3..6e2675cc 100644
--- a/contrib/metrics/datadog/go.sum
+++ b/contrib/metrics/datadog/go.sum
@@ -27,7 +27,7 @@ github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -69,6 +69,7 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
 github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
diff --git a/contrib/metrics/prometheus/go.sum b/contrib/metrics/prometheus/go.sum
index d40e7b4f..77c33fdb 100644
--- a/contrib/metrics/prometheus/go.sum
+++ b/contrib/metrics/prometheus/go.sum
@@ -75,7 +75,7 @@ github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-kit/log v0.2.0/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBjv0=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
@@ -213,6 +213,7 @@ github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
diff --git a/contrib/polaris/config.go b/contrib/polaris/config.go
new file mode 100644
index 00000000..5a79d2e8
--- /dev/null
+++ b/contrib/polaris/config.go
@@ -0,0 +1,119 @@
+package polaris
+
+import (
+	"path/filepath"
+	"strings"
+
+	"github.com/polarismesh/polaris-go"
+	"github.com/polarismesh/polaris-go/pkg/model"
+
+	"github.com/go-kratos/kratos/v2/config"
+	"github.com/go-kratos/kratos/v2/log"
+)
+
+// ConfigOption is polaris config option.
+type ConfigOption func(o *configOptions)
+
+type configOptions struct {
+	namespace  string
+	files      []File
+	configFile []polaris.ConfigFile
+}
+
+// WithConfigFile with polaris config file
+func WithConfigFile(file ...File) ConfigOption {
+	return func(o *configOptions) {
+		o.files = file
+	}
+}
+
+type File struct {
+	Name  string
+	Group string
+}
+
+type source struct {
+	client  polaris.ConfigAPI
+	options *configOptions
+}
+
+// Load return the config values
+func (s *source) Load() ([]*config.KeyValue, error) {
+	kv := make([]*config.KeyValue, 0)
+	for _, file := range s.options.files {
+		configFile, err := s.client.GetConfigFile(s.options.namespace, file.Group, file.Name)
+		if err != nil {
+			return nil, err
+		}
+		s.options.configFile = append(s.options.configFile, configFile)
+		kv = append(kv, &config.KeyValue{
+			Key:    file.Name,
+			Value:  []byte(configFile.GetContent()),
+			Format: strings.TrimPrefix(filepath.Ext(file.Name), "."),
+		})
+	}
+	return kv, nil
+}
+
+// Watch return the watcher
+func (s *source) Watch() (config.Watcher, error) {
+	return newConfigWatcher(s.options.configFile), nil
+}
+
+type ConfigWatcher struct {
+	event chan model.ConfigFileChangeEvent
+	cfg   []*config.KeyValue
+}
+
+func receive(event chan model.ConfigFileChangeEvent) func(m model.ConfigFileChangeEvent) {
+	return func(m model.ConfigFileChangeEvent) {
+		defer func() {
+			if err := recover(); err != nil {
+				log.Error(err)
+			}
+		}()
+		event <- m
+	}
+}
+
+func newConfigWatcher(configFile []polaris.ConfigFile) *ConfigWatcher {
+	w := &ConfigWatcher{
+		event: make(chan model.ConfigFileChangeEvent, len(configFile)),
+	}
+	for _, file := range configFile {
+		w.cfg = append(w.cfg, &config.KeyValue{
+			Key:    file.GetFileName(),
+			Value:  []byte(file.GetContent()),
+			Format: strings.TrimPrefix(filepath.Ext(file.GetFileName()), "."),
+		})
+	}
+	for _, file := range configFile {
+		file.AddChangeListener(receive(w.event))
+	}
+	return w
+}
+
+func (w *ConfigWatcher) Next() ([]*config.KeyValue, error) {
+	if event, ok := <-w.event; ok {
+		m := make(map[string]*config.KeyValue)
+		for _, file := range w.cfg {
+			m[file.Key] = file
+		}
+		m[event.ConfigFileMetadata.GetFileName()] = &config.KeyValue{
+			Key:    event.ConfigFileMetadata.GetFileName(),
+			Value:  []byte(event.NewValue),
+			Format: strings.TrimPrefix(filepath.Ext(event.ConfigFileMetadata.GetFileName()), "."),
+		}
+		w.cfg = make([]*config.KeyValue, 0, len(m))
+		for _, kv := range m {
+			w.cfg = append(w.cfg, kv)
+		}
+		return w.cfg, nil
+	}
+	return w.cfg, nil
+}
+
+func (w *ConfigWatcher) Stop() error {
+	close(w.event)
+	return nil
+}
diff --git a/contrib/polaris/go.mod b/contrib/polaris/go.mod
new file mode 100644
index 00000000..168ea5c3
--- /dev/null
+++ b/contrib/polaris/go.mod
@@ -0,0 +1,45 @@
+module github.com/go-kratos/kratos/contrib/polaris/v2
+
+go 1.18
+
+require (
+	github.com/go-kratos/kratos/v2 v2.5.3
+	github.com/google/uuid v1.3.0
+	github.com/polarismesh/polaris-go v1.3.0
+	google.golang.org/protobuf v1.28.0
+)
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/dlclark/regexp2 v1.7.0 // indirect
+	github.com/go-kratos/aegis v0.1.4 // indirect
+	github.com/go-playground/form/v4 v4.2.0 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/gorilla/mux v1.8.0 // indirect
+	github.com/hashicorp/errwrap v1.0.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/imdario/mergo v0.3.12 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/natefinch/lumberjack v2.0.0+incompatible // indirect
+	github.com/prometheus/client_golang v1.12.1 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.32.1 // indirect
+	github.com/prometheus/procfs v0.7.3 // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/zap v1.21.0 // indirect
+	golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 // indirect
+	golang.org/x/sync v0.0.0-20220513210516-0976fa681c29 // indirect
+	golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6 // indirect
+	golang.org/x/text v0.3.7 // indirect
+	google.golang.org/genproto v0.0.0-20220519153652-3a47de7e79bd // indirect
+	google.golang.org/grpc v1.46.2 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.0 // indirect
+)
+
+replace github.com/go-kratos/kratos/v2 => ../../
diff --git a/contrib/polaris/go.sum b/contrib/polaris/go.sum
new file mode 100644
index 00000000..1bc3ea2e
--- /dev/null
+++ b/contrib/polaris/go.sum
@@ -0,0 +1,583 @@
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+honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
+honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
diff --git a/contrib/polaris/polaris.go b/contrib/polaris/polaris.go
new file mode 100644
index 00000000..ec947653
--- /dev/null
+++ b/contrib/polaris/polaris.go
@@ -0,0 +1,79 @@
+package polaris
+
+import (
+	"errors"
+
+	"github.com/polarismesh/polaris-go"
+	"github.com/polarismesh/polaris-go/api"
+
+	"github.com/go-kratos/kratos/v2/config"
+)
+
+type Polaris struct {
+	router    polaris.RouterAPI
+	config    polaris.ConfigAPI
+	limit     polaris.LimitAPI
+	registry  polaris.ProviderAPI
+	discovery polaris.ConsumerAPI
+	namespace string
+}
+
+// Option is polaris option.
+type Option func(o *Polaris)
+
+// WithNamespace with polaris global testNamespace
+func WithNamespace(ns string) Option {
+	return func(o *Polaris) {
+		o.namespace = ns
+	}
+}
+
+// New polaris Service governance.
+func New(sdk api.SDKContext, opts ...Option) Polaris {
+	op := Polaris{
+		router:    polaris.NewRouterAPIByContext(sdk),
+		config:    polaris.NewConfigAPIByContext(sdk),
+		limit:     polaris.NewLimitAPIByContext(sdk),
+		registry:  polaris.NewProviderAPIByContext(sdk),
+		discovery: polaris.NewConsumerAPIByContext(sdk),
+		namespace: "default",
+	}
+	for _, option := range opts {
+		option(&op)
+	}
+	return op
+}
+
+func (p *Polaris) Config(opts ...ConfigOption) (config.Source, error) {
+	options := &configOptions{
+		namespace: p.namespace,
+	}
+
+	for _, opt := range opts {
+		opt(options)
+	}
+
+	if len(options.files) == 0 {
+		return nil, errors.New("fileNames invalid")
+	}
+
+	return &source{
+		client:  p.config,
+		options: options,
+	}, nil
+}
+
+func (p *Polaris) Registry(opts ...RegistryOption) (r *Registry) {
+	op := registryOptions{
+		Namespace: p.namespace,
+		Healthy:   true,
+	}
+	for _, option := range opts {
+		option(&op)
+	}
+	return &Registry{
+		opt:      op,
+		provider: p.registry,
+		consumer: p.discovery,
+	}
+}
diff --git a/contrib/polaris/registry.go b/contrib/polaris/registry.go
new file mode 100644
index 00000000..4d1e4a33
--- /dev/null
+++ b/contrib/polaris/registry.go
@@ -0,0 +1,380 @@
+package polaris
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"net/url"
+	"strconv"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/polarismesh/polaris-go"
+	"github.com/polarismesh/polaris-go/pkg/model"
+
+	"github.com/go-kratos/kratos/v2/registry"
+)
+
+var (
+	_ registry.Registrar = (*Registry)(nil)
+	_ registry.Discovery = (*Registry)(nil)
+)
+
+type registryOptions struct {
+	// required, testNamespace in polaris
+	Namespace string
+
+	// required, service access token
+	ServiceToken string
+
+	// service weight in polaris. Default value is 100, 0 <= weight <= 10000
+	Weight int
+
+	// service priority. Default value is 0. The smaller the value, the lower the priority
+	Priority int
+
+	// To show service is healthy or not. Default value is True .
+	Healthy bool
+
+	// To show service is isolate or not. Default value is False .
+	Isolate bool
+
+	// TTL timeout. if node needs to use heartbeat to report,required. If not set,server will throw ErrorCode-400141
+	TTL int
+
+	// optional, Timeout for single query. Default value is global config
+	// Total is (1+RetryCount) * Timeout
+	Timeout time.Duration
+
+	// optional, retry count. Default value is global config
+	RetryCount int
+}
+
+// RegistryOption is polaris option.
+type RegistryOption func(o *registryOptions)
+
+// Registry is polaris registry.
+type Registry struct {
+	opt      registryOptions
+	provider polaris.ProviderAPI
+	consumer polaris.ConsumerAPI
+}
+
+// WithRegistryServiceToken with ServiceToken option.
+func WithRegistryServiceToken(serviceToken string) RegistryOption {
+	return func(o *registryOptions) { o.ServiceToken = serviceToken }
+}
+
+// WithRegistryWeight with Weight option.
+func WithRegistryWeight(weight int) RegistryOption {
+	return func(o *registryOptions) { o.Weight = weight }
+}
+
+// WithRegistryHealthy with Healthy option.
+func WithRegistryHealthy(healthy bool) RegistryOption {
+	return func(o *registryOptions) { o.Healthy = healthy }
+}
+
+// WithRegistryIsolate with Isolate option.
+func WithRegistryIsolate(isolate bool) RegistryOption {
+	return func(o *registryOptions) { o.Isolate = isolate }
+}
+
+// WithRegistryTTL with TTL option.
+func WithRegistryTTL(TTL int) RegistryOption {
+	return func(o *registryOptions) { o.TTL = TTL }
+}
+
+// WithRegistryTimeout with Timeout option.
+func WithRegistryTimeout(timeout time.Duration) RegistryOption {
+	return func(o *registryOptions) { o.Timeout = timeout }
+}
+
+// WithRegistryRetryCount with RetryCount option.
+func WithRegistryRetryCount(retryCount int) RegistryOption {
+	return func(o *registryOptions) { o.RetryCount = retryCount }
+}
+
+// Register the registration.
+func (r *Registry) Register(_ context.Context, instance *registry.ServiceInstance) error {
+	id := uuid.NewString()
+	for _, endpoint := range instance.Endpoints {
+		u, err := url.Parse(endpoint)
+		if err != nil {
+			return err
+		}
+
+		host, port, err := net.SplitHostPort(u.Host)
+		if err != nil {
+			return err
+		}
+
+		portNum, err := strconv.Atoi(port)
+		if err != nil {
+			return err
+		}
+
+		// metadata
+		if instance.Metadata == nil {
+			instance.Metadata = make(map[string]string)
+		}
+		instance.Metadata["merge"] = id
+		if _, ok := instance.Metadata["weight"]; !ok {
+			instance.Metadata["weight"] = strconv.Itoa(r.opt.Weight)
+		}
+
+		weight, _ := strconv.Atoi(instance.Metadata["weight"])
+
+		_, err = r.provider.RegisterInstance(
+			&polaris.InstanceRegisterRequest{
+				InstanceRegisterRequest: model.InstanceRegisterRequest{
+					Service:      instance.Name,
+					ServiceToken: r.opt.ServiceToken,
+					Namespace:    r.opt.Namespace,
+					Host:         host,
+					Port:         portNum,
+					Protocol:     &u.Scheme,
+					Weight:       &weight,
+					Priority:     &r.opt.Priority,
+					Version:      &instance.Version,
+					Metadata:     instance.Metadata,
+					Healthy:      &r.opt.Healthy,
+					Isolate:      &r.opt.Isolate,
+					TTL:          &r.opt.TTL,
+					Timeout:      &r.opt.Timeout,
+					RetryCount:   &r.opt.RetryCount,
+				},
+			},
+		)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// Deregister the registration.
+func (r *Registry) Deregister(_ context.Context, serviceInstance *registry.ServiceInstance) error {
+	for _, endpoint := range serviceInstance.Endpoints {
+		// get url
+		u, err := url.Parse(endpoint)
+		if err != nil {
+			return err
+		}
+
+		// get host and port
+		host, port, err := net.SplitHostPort(u.Host)
+		if err != nil {
+			return err
+		}
+
+		// port to int
+		portNum, err := strconv.Atoi(port)
+		if err != nil {
+			return err
+		}
+		// Deregister
+		err = r.provider.Deregister(
+			&polaris.InstanceDeRegisterRequest{
+				InstanceDeRegisterRequest: model.InstanceDeRegisterRequest{
+					Service:      serviceInstance.Name,
+					ServiceToken: r.opt.ServiceToken,
+					Namespace:    r.opt.Namespace,
+					Host:         host,
+					Port:         portNum,
+					Timeout:      &r.opt.Timeout,
+					RetryCount:   &r.opt.RetryCount,
+				},
+			},
+		)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GetService return the service instances in memory according to the service name.
+func (r *Registry) GetService(_ context.Context, serviceName string) ([]*registry.ServiceInstance, error) {
+	// get all instances
+	instancesResponse, err := r.consumer.GetInstances(&polaris.GetInstancesRequest{
+		GetInstancesRequest: model.GetInstancesRequest{
+			Service:         serviceName,
+			Namespace:       r.opt.Namespace,
+			Timeout:         &r.opt.Timeout,
+			RetryCount:      &r.opt.RetryCount,
+			SkipRouteFilter: true,
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	serviceInstances := instancesToServiceInstances(merge(instancesResponse.GetInstances()))
+
+	return serviceInstances, nil
+}
+
+func merge(instances []model.Instance) map[string][]model.Instance {
+	m := make(map[string][]model.Instance)
+	for _, instance := range instances {
+		if v, ok := m[instance.GetMetadata()["merge"]]; ok {
+			m[instance.GetMetadata()["merge"]] = append(v, instance)
+		} else {
+			m[instance.GetMetadata()["merge"]] = []model.Instance{instance}
+		}
+	}
+	return m
+}
+
+// Watch creates a watcher according to the service name.
+func (r *Registry) Watch(ctx context.Context, serviceName string) (registry.Watcher, error) {
+	return newWatcher(ctx, r.opt.Namespace, serviceName, r.consumer)
+}
+
+type Watcher struct {
+	ServiceName      string
+	Namespace        string
+	Ctx              context.Context
+	Cancel           context.CancelFunc
+	Channel          <-chan model.SubScribeEvent
+	service          *model.InstancesResponse
+	ServiceInstances map[string][]model.Instance
+	first            bool
+}
+
+func newWatcher(ctx context.Context, namespace string, serviceName string, consumer polaris.ConsumerAPI) (*Watcher, error) {
+	watchServiceResponse, err := consumer.WatchService(&polaris.WatchServiceRequest{
+		WatchServiceRequest: model.WatchServiceRequest{
+			Key: model.ServiceKey{
+				Namespace: namespace,
+				Service:   serviceName,
+			},
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	w := &Watcher{
+		Namespace:        namespace,
+		ServiceName:      serviceName,
+		Channel:          watchServiceResponse.EventChannel,
+		service:          watchServiceResponse.GetAllInstancesResp,
+		ServiceInstances: merge(watchServiceResponse.GetAllInstancesResp.GetInstances()),
+	}
+	w.Ctx, w.Cancel = context.WithCancel(ctx)
+	return w, nil
+}
+
+// Next returns services in the following two cases:
+// 1.the first time to watch and the service instance list is not empty.
+// 2.any service instance changes found.
+// if the above two conditions are not met, it will block until context deadline exceeded or canceled
+func (w *Watcher) Next() ([]*registry.ServiceInstance, error) {
+	if !w.first {
+		w.first = true
+		if len(w.ServiceInstances) > 0 {
+			return instancesToServiceInstances(w.ServiceInstances), nil
+		}
+	}
+	select {
+	case <-w.Ctx.Done():
+		return nil, w.Ctx.Err()
+	case event := <-w.Channel:
+		if event.GetSubScribeEventType() == model.EventInstance {
+			// this always true, but we need to check it to make sure EventType not change
+			if instanceEvent, ok := event.(*model.InstanceEvent); ok {
+				// handle DeleteEvent
+				if instanceEvent.DeleteEvent != nil {
+					for _, instance := range instanceEvent.DeleteEvent.Instances {
+						delete(w.ServiceInstances, instance.GetMetadata()["merge"])
+					}
+				}
+				// handle UpdateEvent
+				if instanceEvent.UpdateEvent != nil {
+					for _, update := range instanceEvent.UpdateEvent.UpdateList {
+						if v, ok := w.ServiceInstances[update.After.GetMetadata()["merge"]]; ok {
+							var nv []model.Instance
+							m := map[string]model.Instance{}
+							for _, ins := range v {
+								m[ins.GetId()] = ins
+							}
+							m[update.After.GetId()] = update.After
+							for _, ins := range m {
+								if ins.IsHealthy() {
+									nv = append(nv, ins)
+								}
+							}
+							w.ServiceInstances[update.After.GetMetadata()["merge"]] = nv
+							if len(nv) == 0 {
+								delete(w.ServiceInstances, update.After.GetMetadata()["merge"])
+							}
+						} else {
+							if update.After.IsHealthy() {
+								w.ServiceInstances[update.After.GetMetadata()["merge"]] = []model.Instance{update.After}
+							}
+						}
+					}
+				}
+				// handle AddEvent
+				if instanceEvent.AddEvent != nil {
+					for _, instance := range instanceEvent.AddEvent.Instances {
+						if v, ok := w.ServiceInstances[instance.GetMetadata()["merge"]]; ok {
+							var nv []model.Instance
+							m := map[string]model.Instance{}
+							for _, ins := range v {
+								m[ins.GetId()] = ins
+							}
+							m[instance.GetId()] = instance
+							for _, ins := range m {
+								if ins.IsHealthy() {
+									nv = append(nv, ins)
+								}
+							}
+							if len(nv) != 0 {
+								w.ServiceInstances[instance.GetMetadata()["merge"]] = nv
+							}
+						} else {
+							if instance.IsHealthy() {
+								w.ServiceInstances[instance.GetMetadata()["merge"]] = []model.Instance{instance}
+							}
+						}
+					}
+				}
+			}
+			return instancesToServiceInstances(w.ServiceInstances), nil
+		}
+	}
+	return instancesToServiceInstances(w.ServiceInstances), nil
+}
+
+// Stop close the watcher.
+func (w *Watcher) Stop() error {
+	w.Cancel()
+	return nil
+}
+
+func instancesToServiceInstances(instances map[string][]model.Instance) []*registry.ServiceInstance {
+	serviceInstances := make([]*registry.ServiceInstance, 0, len(instances))
+	for _, inss := range instances {
+		if len(inss) == 0 {
+			continue
+		}
+		ins := &registry.ServiceInstance{
+			ID:       inss[0].GetId(),
+			Name:     inss[0].GetService(),
+			Version:  inss[0].GetVersion(),
+			Metadata: inss[0].GetMetadata(),
+		}
+		for _, item := range inss {
+			if item.IsHealthy() {
+				ins.Endpoints = append(ins.Endpoints, fmt.Sprintf("%s://%s:%d", item.GetProtocol(), item.GetHost(), item.GetPort()))
+			}
+		}
+		if len(ins.Endpoints) != 0 {
+			serviceInstances = append(serviceInstances, ins)
+		}
+	}
+	return serviceInstances
+}
diff --git a/contrib/polaris/router.go b/contrib/polaris/router.go
new file mode 100644
index 00000000..de2d714f
--- /dev/null
+++ b/contrib/polaris/router.go
@@ -0,0 +1,126 @@
+package polaris
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"strconv"
+	"strings"
+
+	"github.com/polarismesh/polaris-go"
+	"github.com/polarismesh/polaris-go/pkg/model"
+	"github.com/polarismesh/polaris-go/pkg/model/local"
+	"github.com/polarismesh/polaris-go/pkg/model/pb"
+	v1 "github.com/polarismesh/polaris-go/pkg/model/pb/v1"
+	"google.golang.org/protobuf/types/known/wrapperspb"
+
+	"github.com/go-kratos/kratos/v2"
+	"github.com/go-kratos/kratos/v2/log"
+	"github.com/go-kratos/kratos/v2/selector"
+	"github.com/go-kratos/kratos/v2/transport"
+	"github.com/go-kratos/kratos/v2/transport/http"
+)
+
+// NodeFilter polaris dynamic router selector
+func (p *Polaris) NodeFilter() selector.NodeFilter {
+	return func(ctx context.Context, nodes []selector.Node) []selector.Node {
+		if len(nodes) == 0 {
+			return nodes
+		}
+		if appInfo, ok := kratos.FromContext(ctx); ok {
+			req := &polaris.ProcessRoutersRequest{
+				ProcessRoutersRequest: model.ProcessRoutersRequest{
+					SourceService: model.ServiceInfo{
+						Service:   appInfo.Name(),
+						Namespace: p.namespace,
+					},
+					DstInstances: buildPolarisInstance(p.namespace, nodes),
+				},
+			}
+			req.AddArguments(model.BuildCallerServiceArgument(p.namespace, appInfo.Name()))
+
+			// process transport
+			if tr, ok := transport.FromServerContext(ctx); ok {
+				req.AddArguments(model.BuildMethodArgument(tr.Operation()))
+				req.AddArguments(model.BuildPathArgument(tr.Operation()))
+
+				for _, key := range tr.RequestHeader().Keys() {
+					req.AddArguments(model.BuildHeaderArgument(key, tr.RequestHeader().Get(key)))
+				}
+
+				// http
+				if ht, ok := tr.(http.Transporter); ok {
+					req.AddArguments(model.BuildPathArgument(ht.Request().URL.Path))
+					req.AddArguments(model.BuildCallerIPArgument(ht.Request().RemoteAddr))
+
+					// cookie
+					for _, cookie := range ht.Request().Cookies() {
+						req.AddArguments(model.BuildCookieArgument(cookie.Name, cookie.Value))
+					}
+
+					// url query
+					for key, values := range ht.Request().URL.Query() {
+						req.AddArguments(model.BuildQueryArgument(key, strings.Join(values, ",")))
+					}
+				}
+			}
+
+			n := make(map[string]selector.Node, len(nodes))
+
+			for _, node := range nodes {
+				n[node.Address()] = node
+			}
+
+			m, err := p.router.ProcessRouters(req)
+			if err != nil {
+				log.Errorf("polaris process routers failed, err=%v", err)
+				return nodes
+			}
+
+			newNode := make([]selector.Node, 0, len(m.Instances))
+			for _, ins := range m.GetInstances() {
+				if v, ok := n[fmt.Sprintf("%s:%d", ins.GetHost(), ins.GetPort())]; ok {
+					newNode = append(newNode, v)
+				}
+			}
+			return newNode
+		}
+		return nodes
+	}
+}
+
+func buildPolarisInstance(namespace string, nodes []selector.Node) *pb.ServiceInstancesInProto {
+	ins := make([]*v1.Instance, 0, len(nodes))
+	for _, node := range nodes {
+		host, port, err := net.SplitHostPort(node.Address())
+		if err != nil {
+			return nil
+		}
+		portInt, err := strconv.Atoi(port)
+		if err != nil {
+			return nil
+		}
+		ins = append(ins, &v1.Instance{
+			Id:        wrapperspb.String(node.Metadata()["merge"]),
+			Service:   wrapperspb.String(node.ServiceName()),
+			Namespace: wrapperspb.String(namespace),
+			Host:      wrapperspb.String(host),
+			Port:      wrapperspb.UInt32(uint32(portInt)),
+			Protocol:  wrapperspb.String(node.Scheme()),
+			Version:   wrapperspb.String(node.Version()),
+			Weight:    wrapperspb.UInt32(uint32(*node.InitialWeight())),
+			Metadata:  node.Metadata(),
+		})
+	}
+
+	d := &v1.DiscoverResponse{
+		Code:      wrapperspb.UInt32(1),
+		Info:      wrapperspb.String("ok"),
+		Type:      v1.DiscoverResponse_INSTANCE,
+		Service:   &v1.Service{Name: wrapperspb.String(nodes[0].ServiceName()), Namespace: wrapperspb.String("default")},
+		Instances: ins,
+	}
+	return pb.NewServiceInstancesInProto(d, func(s string) local.InstanceLocalValue {
+		return local.NewInstanceLocalValue()
+	}, &pb.SvcPluginValues{Routers: nil, Loadbalancer: nil}, nil)
+}
diff --git a/contrib/registry/consul/go.sum b/contrib/registry/consul/go.sum
index 782428ae..3b61776e 100644
--- a/contrib/registry/consul/go.sum
+++ b/contrib/registry/consul/go.sum
@@ -46,7 +46,7 @@ github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmV
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
@@ -205,6 +205,7 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
diff --git a/contrib/registry/discovery/go.sum b/contrib/registry/discovery/go.sum
index d04046c7..0a23d4f2 100644
--- a/contrib/registry/discovery/go.sum
+++ b/contrib/registry/discovery/go.sum
@@ -21,7 +21,7 @@ github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -65,6 +65,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
diff --git a/contrib/registry/etcd/go.sum b/contrib/registry/etcd/go.sum
index 3e7a0640..6fd10a55 100644
--- a/contrib/registry/etcd/go.sum
+++ b/contrib/registry/etcd/go.sum
@@ -42,7 +42,7 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
@@ -139,6 +139,7 @@ github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
diff --git a/contrib/registry/eureka/go.sum b/contrib/registry/eureka/go.sum
index cf99bffd..95f4e5e7 100644
--- a/contrib/registry/eureka/go.sum
+++ b/contrib/registry/eureka/go.sum
@@ -21,7 +21,7 @@ github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -61,6 +61,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
diff --git a/contrib/registry/kubernetes/go.sum b/contrib/registry/kubernetes/go.sum
index 262d3171..31675f3f 100644
--- a/contrib/registry/kubernetes/go.sum
+++ b/contrib/registry/kubernetes/go.sum
@@ -95,7 +95,7 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v0.1.0/go.mod h1:ixOQHD9gLJUVQQ2ZOR7zLEifBX6tGkNJF4QyIY7sIas=
 github.com/go-logr/logr v0.2.0/go.mod h1:z6/tIYblkpsD+a4lm/fGIIU9mZ+XfAiaFtq7xTgseGU=
 github.com/go-logr/logr v1.2.0/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
@@ -255,6 +255,7 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spf13/afero v1.2.2/go.mod h1:9ZxEEn6pIJ8Rxe320qSDBk6AsU0r9pR7Q4OcevTdifk=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
diff --git a/contrib/registry/nacos/go.sum b/contrib/registry/nacos/go.sum
index 12c39aa4..f90df634 100644
--- a/contrib/registry/nacos/go.sum
+++ b/contrib/registry/nacos/go.sum
@@ -32,7 +32,7 @@ github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmV
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -116,6 +116,7 @@ github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykE
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a h1:pa8hGb/2YqsZKovtsgrwcDH1RZhVbTKCjLp47XpqCDs=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
diff --git a/contrib/registry/polaris/go.sum b/contrib/registry/polaris/go.sum
index 52a7a73e..26340b17 100644
--- a/contrib/registry/polaris/go.sum
+++ b/contrib/registry/polaris/go.sum
@@ -82,7 +82,7 @@ github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
diff --git a/contrib/registry/zookeeper/go.sum b/contrib/registry/zookeeper/go.sum
index f5cce467..aafebdab 100644
--- a/contrib/registry/zookeeper/go.sum
+++ b/contrib/registry/zookeeper/go.sum
@@ -21,7 +21,7 @@ github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
@@ -63,6 +63,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/shirou/gopsutil/v3 v3.21.8/go.mod h1:YWp/H8Qs5fVmf17v7JNZzA0mPJ+mS2e9JdiUF9LlKzQ=
+github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
diff --git a/encoding/form/proto_encode.go b/encoding/form/proto_encode.go
index 25d4ac19..550648dc 100644
--- a/encoding/form/proto_encode.go
+++ b/encoding/form/proto_encode.go
@@ -200,7 +200,7 @@ func EncodeFieldMask(m protoreflect.Message) (query string) {
 	return
 }
 
-// JSONCamelCase converts a snake_case identifier to a camelCase identifier,
+// jsonCamelCase converts a snake_case identifier to a camelCase identifier,
 // according to the protobuf JSON specification.
 // references: https://github.com/protocolbuffers/protobuf-go/blob/master/encoding/protojson/well_known_types.go#L842
 func jsonCamelCase(s string) string {
diff --git a/go.mod b/go.mod
index 42a14b34..ac514506 100644
--- a/go.mod
+++ b/go.mod
@@ -1,10 +1,10 @@
 module github.com/go-kratos/kratos/v2
 
-go 1.16
+go 1.18
 
 require (
 	github.com/fsnotify/fsnotify v1.5.4
-	github.com/go-kratos/aegis v0.1.2
+	github.com/go-kratos/aegis v0.1.4
 	github.com/go-playground/form/v4 v4.2.0
 	github.com/golang-jwt/jwt/v4 v4.4.1
 	github.com/google/uuid v1.3.0
@@ -19,3 +19,17 @@ require (
 	google.golang.org/protobuf v1.28.0
 	gopkg.in/yaml.v3 v3.0.0
 )
+
+require (
+	github.com/StackExchange/wmi v1.2.1 // indirect
+	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.2.5 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/shirou/gopsutil/v3 v3.21.8 // indirect
+	github.com/tklauser/go-sysconf v0.3.9 // indirect
+	github.com/tklauser/numcpus v0.3.0 // indirect
+	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4 // indirect
+	golang.org/x/sys v0.0.0-20220412211240-33da011f77ad // indirect
+	golang.org/x/text v0.3.5 // indirect
+)
diff --git a/go.sum b/go.sum
index 14406897..ded15596 100644
--- a/go.sum
+++ b/go.sum
@@ -4,6 +4,7 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/StackExchange/wmi v1.2.1 h1:VIkavFPXSjcnS+O8yTq7NI32k0R5Aj+v39y29VYDOSA=
 github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
+github.com/census-instrumentation/opencensus-proto v0.2.1 h1:glEXhBS5PSLLv4IXzLA5yPRVX4bilULVyxxbrfOtDAk=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
@@ -12,6 +13,7 @@ github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnht
 github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
 github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
+github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1 h1:zH8ljVhhq7yC0MIeUL/IviMtY8hx2mK8cN9wEYb8ggw=
 github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -19,13 +21,15 @@ github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymF
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
+github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1 h1:xvqufLtNVwAhN8NMyWklVgxnWohi+wtMGQMhtxexlm0=
 github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE=
+github.com/envoyproxy/protoc-gen-validate v0.1.0 h1:EQciDnbrYxy13PgWoY8AqoxGiPrpgBZ1R8UNe3ddc+A=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.5.4 h1:jRbGcIw6P2Meqdwuo0H1p6JVLbL5DHKAKlYndzMwVZI=
 github.com/fsnotify/fsnotify v1.5.4/go.mod h1:OVB6XrOHzAwXMpEM7uPOzcehqUV2UqJxmVXmkdnm1bU=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-kratos/aegis v0.1.2 h1:4yJlFEmty8kRO9wHWLsbE65CS5ffUdglZk9YHo0NMD4=
-github.com/go-kratos/aegis v0.1.2/go.mod h1:jYeSQ3Gesba478zEnujOiG5QdsyF3Xk/8owFUeKcHxw=
+github.com/go-kratos/aegis v0.1.4 h1:rVLXJNohV1d2GUFi7TwPReF23clhaAtAzrz03IP6GMo=
+github.com/go-kratos/aegis v0.1.4/go.mod h1:Lk2PFCRyeYiXMJhCYgvJLXdc5AZEDk1Pik66SAIv0gY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
 github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
diff --git a/registry/registry.go b/registry/registry.go
index 6e35ff7b..95d3123a 100644
--- a/registry/registry.go
+++ b/registry/registry.go
@@ -2,6 +2,7 @@ package registry
 
 import (
 	"context"
+	"fmt"
 	"sort"
 )
 
@@ -49,6 +50,10 @@ type ServiceInstance struct {
 	Endpoints []string `json:"endpoints"`
 }
 
+func (i *ServiceInstance) String() string {
+	return fmt.Sprintf("%s-%s", i.Name, i.ID)
+}
+
 // Equal returns whether i and o are equivalent.
 func (i *ServiceInstance) Equal(o interface{}) bool {
 	if i == nil && o == nil {
diff --git a/transport/grpc/client.go b/transport/grpc/client.go
index da6ceb02..5062286e 100644
--- a/transport/grpc/client.go
+++ b/transport/grpc/client.go
@@ -39,6 +39,14 @@ func WithEndpoint(endpoint string) ClientOption {
 	}
 }
 
+// WithSubset with client disocvery subset size.
+// zero value means subset filter disabled
+func WithSubset(size int) ClientOption {
+	return func(o *clientOptions) {
+		o.subsetSize = size
+	}
+}
+
 // WithTimeout with client timeout.
 func WithTimeout(timeout time.Duration) ClientOption {
 	return func(o *clientOptions) {
@@ -74,6 +82,13 @@ func WithUnaryInterceptor(in ...grpc.UnaryClientInterceptor) ClientOption {
 	}
 }
 
+// WithStreamInterceptor returns a DialOption that specifies the interceptor for streaming RPCs.
+func WithStreamInterceptor(in ...grpc.StreamClientInterceptor) ClientOption {
+	return func(o *clientOptions) {
+		o.streamInts = in
+	}
+}
+
 // WithOptions with gRPC options.
 func WithOptions(opts ...grpc.DialOption) ClientOption {
 	return func(o *clientOptions) {
@@ -97,11 +112,13 @@ func WithLogger(log log.Logger) ClientOption {
 // clientOptions is gRPC Client
 type clientOptions struct {
 	endpoint     string
+	subsetSize   int
 	tlsConf      *tls.Config
 	timeout      time.Duration
 	discovery    registry.Discovery
 	middleware   []middleware.Middleware
 	ints         []grpc.UnaryClientInterceptor
+	streamInts   []grpc.StreamClientInterceptor
 	grpcOpts     []grpc.DialOption
 	balancerName string
 	filters      []selector.NodeFilter
@@ -121,6 +138,7 @@ func dial(ctx context.Context, insecure bool, opts ...ClientOption) (*grpc.Clien
 	options := clientOptions{
 		timeout:      2000 * time.Millisecond,
 		balancerName: balancerName,
+		subsetSize:   25,
 	}
 	for _, o := range opts {
 		o(&options)
@@ -135,12 +153,16 @@ func dial(ctx context.Context, insecure bool, opts ...ClientOption) (*grpc.Clien
 		grpc.WithDefaultServiceConfig(fmt.Sprintf(`{"loadBalancingConfig": [{"%s":{}}]}`, options.balancerName)),
 		grpc.WithChainUnaryInterceptor(ints...),
 	}
+	if len(options.streamInts) > 0 {
+		grpcOpts = append(grpcOpts, grpc.WithChainStreamInterceptor(options.streamInts...))
+	}
 	if options.discovery != nil {
 		grpcOpts = append(grpcOpts,
 			grpc.WithResolvers(
 				discovery.NewBuilder(
 					options.discovery,
 					discovery.WithInsecure(insecure),
+					discovery.WithSubset(options.subsetSize),
 				)))
 	}
 	if insecure {
diff --git a/transport/grpc/resolver/discovery/builder.go b/transport/grpc/resolver/discovery/builder.go
index a4425a51..015c20f1 100644
--- a/transport/grpc/resolver/discovery/builder.go
+++ b/transport/grpc/resolver/discovery/builder.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/go-kratos/kratos/v2/registry"
 
+	"github.com/google/uuid"
 	"google.golang.org/grpc/resolver"
 )
 
@@ -30,6 +31,13 @@ func WithInsecure(insecure bool) Option {
 	}
 }
 
+// WithInsecure with isSecure option.
+func WithSubset(size int) Option {
+	return func(b *builder) {
+		b.subsetSize = size
+	}
+}
+
 // DisableDebugLog disables update instances log.
 func DisableDebugLog() Option {
 	return func(b *builder) {
@@ -41,6 +49,7 @@ type builder struct {
 	discoverer       registry.Discovery
 	timeout          time.Duration
 	insecure         bool
+	subsetSize       int
 	debugLogDisabled bool
 }
 
@@ -51,6 +60,7 @@ func NewBuilder(d registry.Discovery, opts ...Option) resolver.Builder {
 		timeout:          time.Second * 10,
 		insecure:         false,
 		debugLogDisabled: false,
+		subsetSize:       25,
 	}
 	for _, o := range opts {
 		o(b)
@@ -84,6 +94,7 @@ func (b *builder) Build(target resolver.Target, cc resolver.ClientConn, opts res
 		cancel()
 		return nil, err
 	}
+
 	r := &discoveryResolver{
 		w:                watchRes.w,
 		cc:               cc,
@@ -91,6 +102,8 @@ func (b *builder) Build(target resolver.Target, cc resolver.ClientConn, opts res
 		cancel:           cancel,
 		insecure:         b.insecure,
 		debugLogDisabled: b.debugLogDisabled,
+		subsetSize:       b.subsetSize,
+		selecterKey:      uuid.New().String(),
 	}
 	go r.watch()
 	return r, nil
diff --git a/transport/grpc/resolver/discovery/resolver.go b/transport/grpc/resolver/discovery/resolver.go
index 0dc115b6..a66a9b4e 100644
--- a/transport/grpc/resolver/discovery/resolver.go
+++ b/transport/grpc/resolver/discovery/resolver.go
@@ -10,6 +10,7 @@ import (
 	"github.com/go-kratos/kratos/v2/log"
 	"github.com/go-kratos/kratos/v2/registry"
 
+	"github.com/go-kratos/aegis/subset"
 	"google.golang.org/grpc/attributes"
 	"google.golang.org/grpc/resolver"
 )
@@ -23,6 +24,8 @@ type discoveryResolver struct {
 
 	insecure         bool
 	debugLogDisabled bool
+	selecterKey      string
+	subsetSize       int
 }
 
 func (r *discoveryResolver) watch() {
@@ -48,6 +51,7 @@ func (r *discoveryResolver) watch() {
 func (r *discoveryResolver) update(ins []*registry.ServiceInstance) {
 	addrs := make([]resolver.Address, 0)
 	endpoints := make(map[string]struct{})
+	filtered := make([]*registry.ServiceInstance, 0, len(ins))
 	for _, in := range ins {
 		ept, err := endpoint.ParseEndpoint(in.Endpoints, endpoint.Scheme("grpc", !r.insecure))
 		if err != nil {
@@ -61,6 +65,13 @@ func (r *discoveryResolver) update(ins []*registry.ServiceInstance) {
 		if _, ok := endpoints[ept]; ok {
 			continue
 		}
+		filtered = append(filtered, in)
+	}
+	if r.subsetSize != 0 {
+		filtered = subset.Subset(r.selecterKey, filtered, r.subsetSize)
+	}
+	for _, in := range filtered {
+		ept, _ := endpoint.ParseEndpoint(in.Endpoints, endpoint.Scheme("grpc", !r.insecure))
 		endpoints[ept] = struct{}{}
 		addr := resolver.Address{
 			ServerName: in.Name,
@@ -80,7 +91,7 @@ func (r *discoveryResolver) update(ins []*registry.ServiceInstance) {
 	}
 
 	if !r.debugLogDisabled {
-		b, _ := json.Marshal(ins)
+		b, _ := json.Marshal(filtered)
 		log.Infof("[resolver] update instances: %s", b)
 	}
 }
diff --git a/transport/http/client.go b/transport/http/client.go
index de9a3138..52ee1350 100644
--- a/transport/http/client.go
+++ b/transport/http/client.go
@@ -53,6 +53,15 @@ type clientOptions struct {
 	discovery    registry.Discovery
 	middleware   []middleware.Middleware
 	block        bool
+	subsetSize   int
+}
+
+// WithSubset with client disocvery subset size.
+// zero value means subset filter disabled
+func WithSubset(size int) ClientOption {
+	return func(o *clientOptions) {
+		o.subsetSize = size
+	}
 }
 
 // WithTransport with client transport.
@@ -158,6 +167,7 @@ func NewClient(ctx context.Context, opts ...ClientOption) (*Client, error) {
 		decoder:      DefaultResponseDecoder,
 		errorDecoder: DefaultErrorDecoder,
 		transport:    http.DefaultTransport,
+		subsetSize:   25,
 	}
 	for _, o := range opts {
 		o(&options)
@@ -176,7 +186,7 @@ func NewClient(ctx context.Context, opts ...ClientOption) (*Client, error) {
 	var r *resolver
 	if options.discovery != nil {
 		if target.Scheme == "discovery" {
-			if r, err = newResolver(ctx, options.discovery, target, selector, options.block, insecure); err != nil {
+			if r, err = newResolver(ctx, options.discovery, target, selector, options.block, insecure, options.subsetSize); err != nil {
 				return nil, fmt.Errorf("[http client] new resolver failed!err: %v", options.endpoint)
 			}
 		} else if _, _, err := host.ExtractHostPort(options.endpoint); err != nil {
diff --git a/transport/http/codec.go b/transport/http/codec.go
index da1b13e0..156181f7 100644
--- a/transport/http/codec.go
+++ b/transport/http/codec.go
@@ -1,8 +1,10 @@
 package http
 
 import (
+	"bytes"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 
@@ -63,6 +65,10 @@ func DefaultRequestDecoder(r *http.Request, v interface{}) error {
 		return errors.BadRequest("CODEC", fmt.Sprintf("unregister Content-Type: %s", r.Header.Get("Content-Type")))
 	}
 	data, err := io.ReadAll(r.Body)
+
+	// reset body.
+	r.Body = ioutil.NopCloser(bytes.NewBuffer(data))
+
 	if err != nil {
 		return errors.BadRequest("CODEC", err.Error())
 	}
diff --git a/transport/http/resolver.go b/transport/http/resolver.go
index f742c36a..dbb2211f 100644
--- a/transport/http/resolver.go
+++ b/transport/http/resolver.go
@@ -11,6 +11,9 @@ import (
 	"github.com/go-kratos/kratos/v2/log"
 	"github.com/go-kratos/kratos/v2/registry"
 	"github.com/go-kratos/kratos/v2/selector"
+
+	"github.com/go-kratos/aegis/subset"
+	"github.com/google/uuid"
 )
 
 // Target is resolver target
@@ -42,22 +45,29 @@ func parseTarget(endpoint string, insecure bool) (*Target, error) {
 type resolver struct {
 	rebalancer selector.Rebalancer
 
-	target  *Target
-	watcher registry.Watcher
+	target      *Target
+	watcher     registry.Watcher
+	selecterKey string
+	subsetSize  int
 
 	insecure bool
 }
 
-func newResolver(ctx context.Context, discovery registry.Discovery, target *Target, rebalancer selector.Rebalancer, block, insecure bool) (*resolver, error) {
+func newResolver(ctx context.Context, discovery registry.Discovery, target *Target,
+	rebalancer selector.Rebalancer, block, insecure bool, subsetSize int,
+) (*resolver, error) {
+	// this is new resovler
 	watcher, err := discovery.Watch(ctx, target.Endpoint)
 	if err != nil {
 		return nil, err
 	}
 	r := &resolver{
-		target:     target,
-		watcher:    watcher,
-		rebalancer: rebalancer,
-		insecure:   insecure,
+		target:      target,
+		watcher:     watcher,
+		rebalancer:  rebalancer,
+		insecure:    insecure,
+		selecterKey: uuid.New().String(),
+		subsetSize:  subsetSize,
 	}
 	if block {
 		done := make(chan error, 1)
@@ -110,7 +120,7 @@ func newResolver(ctx context.Context, discovery registry.Discovery, target *Targ
 }
 
 func (r *resolver) update(services []*registry.ServiceInstance) bool {
-	nodes := make([]selector.Node, 0)
+	filtered := make([]*registry.ServiceInstance, 0, len(services))
 	for _, ins := range services {
 		ept, err := endpoint.ParseEndpoint(ins.Endpoints, endpoint.Scheme("http", !r.insecure))
 		if err != nil {
@@ -120,8 +130,17 @@ func (r *resolver) update(services []*registry.ServiceInstance) bool {
 		if ept == "" {
 			continue
 		}
+		filtered = append(filtered, ins)
+	}
+	if r.subsetSize != 0 {
+		filtered = subset.Subset(r.selecterKey, filtered, r.subsetSize)
+	}
+	nodes := make([]selector.Node, 0)
+	for _, ins := range filtered {
+		ept, _ := endpoint.ParseEndpoint(ins.Endpoints, endpoint.Scheme("http", !r.insecure))
 		nodes = append(nodes, selector.NewNode("http", ept, ins))
 	}
+
 	if len(nodes) == 0 {
 		log.Warnf("[http resolver]Zero endpoint found,refused to write,set: %s ins: %v", r.target.Endpoint, nodes)
 		return false


Test patch:
diff --git a/contrib/config/polaris/config_test.go b/contrib/polaris/config_test.go
similarity index 59%
rename from contrib/config/polaris/config_test.go
rename to contrib/polaris/config_test.go
index 9559174f..3ad701e4 100644
--- a/contrib/config/polaris/config_test.go
+++ b/contrib/polaris/config_test.go
@@ -1,26 +1,28 @@
-package config
+package polaris
 
 import (
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
 	"net/http"
 	"reflect"
 	"strings"
 	"testing"
+	"time"
+
+	"github.com/go-kratos/kratos/v2/config"
 
 	"github.com/polarismesh/polaris-go"
 )
 
 var (
-	namespace     = "default"
-	fileGroup     = "test"
-	originContent = `server:
+	testNamespace     = "default"
+	testFileGroup     = "test"
+	testOriginContent = `server:
 		port: 8080`
-	updatedContent = `server:
+	testUpdatedContent = `server:
 		port: 8090`
-	configCenterURL = "http://127.0.0.1:8090"
+	testCenterURL = "http://127.0.0.1:8090"
 )
 
 func makeJSONRequest(uri string, data string, method string, headers map[string]string) ([]byte, error) {
@@ -57,7 +59,7 @@ type configClient struct {
 }
 
 func newConfigClient() (*configClient, error) {
-	token, err := getToken()
+	token, err := getToken(testCenterURL)
 	if err != nil {
 		return nil, err
 	}
@@ -66,7 +68,7 @@ func newConfigClient() (*configClient, error) {
 	}, nil
 }
 
-func getToken() (string, error) {
+func getToken(testCenterURL string) (string, error) {
 	data, err := json.Marshal(map[string]string{
 		"name":     "polaris",
 		"password": "polaris",
@@ -75,7 +77,7 @@ func getToken() (string, error) {
 		return "", err
 	}
 	// login use default user
-	res, err := makeJSONRequest(fmt.Sprintf("%s/core/v1/user/login", configCenterURL), string(data), http.MethodPost, map[string]string{})
+	res, err := makeJSONRequest(fmt.Sprintf("%s/core/v1/user/login", testCenterURL), string(data), http.MethodPost, map[string]string{})
 	if err != nil {
 		return "", nil
 	}
@@ -89,16 +91,16 @@ func getToken() (string, error) {
 func (client *configClient) createConfigFile(name string) error {
 	data, err := json.Marshal(map[string]string{
 		"name":      name,
-		"namespace": namespace,
-		"group":     fileGroup,
-		"content":   originContent,
+		"namespace": testNamespace,
+		"group":     testFileGroup,
+		"content":   testOriginContent,
 		"modifyBy":  "polaris",
 		"format":    "yaml",
 	})
 	if err != nil {
 		return err
 	}
-	res, err := makeJSONRequest(fmt.Sprintf("%s/config/v1/configfiles", configCenterURL), string(data), http.MethodPost, map[string]string{
+	res, err := makeJSONRequest(fmt.Sprintf("%s/config/v1/configfiles", testCenterURL), string(data), http.MethodPost, map[string]string{
 		"X-Polaris-Token": client.token,
 	})
 	if err != nil {
@@ -111,7 +113,7 @@ func (client *configClient) createConfigFile(name string) error {
 		return err
 	}
 	if resJSON.Code != 200000 {
-		return errors.New("create error")
+		return fmt.Errorf("create error, res: %s", string(res))
 	}
 	return nil
 }
@@ -119,16 +121,16 @@ func (client *configClient) createConfigFile(name string) error {
 func (client *configClient) updateConfigFile(name string) error {
 	data, err := json.Marshal(map[string]string{
 		"name":      name,
-		"namespace": namespace,
-		"group":     fileGroup,
-		"content":   updatedContent,
+		"namespace": testNamespace,
+		"group":     testFileGroup,
+		"content":   testUpdatedContent,
 		"modifyBy":  "polaris",
 		"format":    "yaml",
 	})
 	if err != nil {
 		return err
 	}
-	res, err := makeJSONRequest(fmt.Sprintf("%s/config/v1/configfiles", configCenterURL), string(data), http.MethodPut, map[string]string{
+	res, err := makeJSONRequest(fmt.Sprintf("%s/config/v1/configfiles", testCenterURL), string(data), http.MethodPut, map[string]string{
 		"X-Polaris-Token": client.token,
 	})
 	if err != nil {
@@ -140,7 +142,7 @@ func (client *configClient) updateConfigFile(name string) error {
 		return err
 	}
 	if resJSON.Code != 200000 {
-		return errors.New("update error")
+		return fmt.Errorf("update error, res: %s", string(res))
 	}
 	return nil
 }
@@ -150,7 +152,7 @@ func (client *configClient) deleteConfigFile(name string) error {
 	if err != nil {
 		return err
 	}
-	url := fmt.Sprintf("%s/config/v1/configfiles?namespace=%s&group=%s&name=%s", configCenterURL, namespace, fileGroup, name)
+	url := fmt.Sprintf("%s/config/v1/configfiles?namespace=%s&group=%s&name=%s", testCenterURL, testNamespace, testFileGroup, name)
 	res, err := makeJSONRequest(url, string(data), http.MethodDelete, map[string]string{
 		"X-Polaris-Token": client.token,
 	})
@@ -163,22 +165,22 @@ func (client *configClient) deleteConfigFile(name string) error {
 		return err
 	}
 	if resJSON.Code != 200000 {
-		return errors.New("delete error")
+		return fmt.Errorf("delete error, res: %s", string(res))
 	}
 	return nil
 }
 
 func (client *configClient) publishConfigFile(name string) error {
 	data, err := json.Marshal(map[string]string{
-		"namespace": namespace,
-		"group":     fileGroup,
+		"namespace": testNamespace,
+		"group":     testFileGroup,
 		"fileName":  name,
 		"name":      name,
 	})
 	if err != nil {
 		return err
 	}
-	res, err := makeJSONRequest(fmt.Sprintf("%s/config/v1/configfiles/release", configCenterURL), string(data), http.MethodPost, map[string]string{
+	res, err := makeJSONRequest(fmt.Sprintf("%s/config/v1/configfiles/release", testCenterURL), string(data), http.MethodPost, map[string]string{
 		"X-Polaris-Token": client.token,
 	})
 	if err != nil {
@@ -190,30 +192,35 @@ func (client *configClient) publishConfigFile(name string) error {
 		return err
 	}
 	if resJSON.Code != 200000 {
-		return errors.New("publish error")
+		return fmt.Errorf("publish error, res: %s", string(res))
 	}
 	return nil
 }
 
 func TestConfig(t *testing.T) {
-	name := "test.yaml"
+	name := "kratos-polaris-test.yaml"
 	client, err := newConfigClient()
 	if err != nil {
 		t.Fatal(err)
 	}
+	_ = client.deleteConfigFile(name)
 	if err = client.createConfigFile(name); err != nil {
 		t.Fatal(err)
 	}
+	time.Sleep(5 * time.Second)
 	if err = client.publishConfigFile(name); err != nil {
 		t.Fatal(err)
 	}
 
+	time.Sleep(5 * time.Second)
+
 	// Always remember clear test resource
-	configAPI, err := polaris.NewConfigAPI()
+	sdk, err := polaris.NewSDKContextByAddress("127.0.0.1:8091")
 	if err != nil {
 		t.Fatal(err)
 	}
-	config, err := New(configAPI, WithNamespace(namespace), WithFileGroup(fileGroup), WithFileName(name))
+	p := New(sdk)
+	config, err := p.Config(WithConfigFile(File{Name: name, Group: testFileGroup}))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -222,7 +229,10 @@ func TestConfig(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if len(kv) != 1 || kv[0].Key != name || string(kv[0].Value) != originContent {
+	for _, value := range kv {
+		t.Logf("key: %s, value: %s", value.Key, value.Value)
+	}
+	if len(kv) != 1 || kv[0].Key != name || string(kv[0].Value) != testOriginContent {
 		t.Fatal("config error")
 	}
 
@@ -230,18 +240,13 @@ func TestConfig(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer func() {
+
+	t.Cleanup(func() {
 		err = client.deleteConfigFile(name)
 		if err != nil {
 			t.Fatal(err)
 		}
-		if _, err = w.Next(); err != nil {
-			t.Fatal(err)
-		}
-		if err = w.Stop(); err != nil {
-			t.Fatal(err)
-		}
-	}()
+	})
 
 	if err = client.updateConfigFile(name); err != nil {
 		t.Fatal(err)
@@ -255,17 +260,22 @@ func TestConfig(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if len(kv) != 1 || kv[0].Key != name || string(kv[0].Value) != updatedContent {
+	for _, value := range kv {
+		t.Log(value.Key, string(value.Value))
+	}
+
+	if len(kv) != 1 || kv[0].Key != name || string(kv[0].Value) != testUpdatedContent {
 		t.Fatal("config error")
 	}
 }
 
 func TestExtToFormat(t *testing.T) {
-	name := "ext.yaml"
+	name := "kratos-polaris-ext.yaml"
 	client, err := newConfigClient()
 	if err != nil {
 		t.Fatal(err)
 	}
+	_ = client.deleteConfigFile(name)
 	if err = client.createConfigFile(name); err != nil {
 		t.Fatal(err)
 	}
@@ -274,22 +284,24 @@ func TestExtToFormat(t *testing.T) {
 	}
 
 	// Always remember clear test resource
-	defer func() {
+	t.Cleanup(func() {
 		if err = client.deleteConfigFile(name); err != nil {
 			t.Fatal(err)
 		}
-	}()
+	})
 
-	configAPI, err := polaris.NewConfigAPI()
+	sdk, err := polaris.NewSDKContextByAddress("127.0.0.1:8091")
 	if err != nil {
 		t.Fatal(err)
 	}
+	p := New(sdk)
 
-	config, err := New(configAPI, WithNamespace(namespace), WithFileGroup(fileGroup), WithFileName(name))
+	cfg, err := p.Config(WithConfigFile(File{Name: name, Group: testFileGroup}))
 	if err != nil {
 		t.Fatal(err)
 	}
-	kv, err := config.Load()
+
+	kv, err := cfg.Load()
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -299,10 +311,76 @@ func TestExtToFormat(t *testing.T) {
 	if !reflect.DeepEqual(name, kv[0].Key) {
 		t.Errorf("kvs[0].Key is %s", kv[0].Key)
 	}
-	if !reflect.DeepEqual(originContent, string(kv[0].Value)) {
+	if !reflect.DeepEqual(testOriginContent, string(kv[0].Value)) {
 		t.Errorf("kvs[0].Value is %s", kv[0].Value)
 	}
 	if !reflect.DeepEqual("yaml", kv[0].Format) {
 		t.Errorf("kvs[0].Format is %s", kv[0].Format)
 	}
 }
+
+func TestGetMultipleConfig(t *testing.T) {
+	client, err := newConfigClient()
+	files := make([]File, 0, 3)
+	for i := 0; i < 3; i++ {
+		name := fmt.Sprintf("kratos-polaris-test-%d.yaml", i)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_ = client.deleteConfigFile(name)
+		if err = client.createConfigFile(name); err != nil {
+			t.Fatal(err)
+		}
+		if err = client.publishConfigFile(name); err != nil {
+			t.Fatal(err)
+		}
+		files = append(files, File{Name: name, Group: testFileGroup})
+	}
+
+	sdk, err := polaris.NewSDKContextByAddress("127.0.0.1:8091")
+	if err != nil {
+		t.Fatal(err)
+	}
+	p := New(sdk, WithNamespace("default"))
+
+	cfg, err := p.Config(WithConfigFile(files...))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	kvs, err := cfg.Load()
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, kv := range kvs {
+		t.Logf("key: %s, value: %s", kv.Key, kv.Value)
+	}
+
+	w, err := cfg.Watch()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, file := range files {
+		if err = client.publishConfigFile(file.Name); err != nil {
+			t.Fatal(err)
+		}
+		kvs, err := w.Next()
+		if err != nil {
+			t.Fatal(err)
+		}
+		m := make(map[string]*config.KeyValue)
+		for _, kv := range kvs {
+			m[kv.Key] = kv
+		}
+		if !reflect.DeepEqual(file.Name, m[file.Name].Key) {
+			t.Errorf("m[file.Name].Key is %s", m[file.Name].Key)
+		}
+		if !reflect.DeepEqual(testOriginContent, string(m[file.Name].Value)) {
+			t.Errorf("m[file.Name].Value is %s", m[file.Name].Value)
+		}
+		if !reflect.DeepEqual("yaml", m[file.Name].Format) {
+			t.Errorf("m[file.Name].Format is %s", m[file.Name].Format)
+		}
+	}
+}
diff --git a/contrib/polaris/registry_test.go b/contrib/polaris/registry_test.go
new file mode 100644
index 00000000..7295de53
--- /dev/null
+++ b/contrib/polaris/registry_test.go
@@ -0,0 +1,164 @@
+package polaris
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/polarismesh/polaris-go"
+
+	"github.com/go-kratos/kratos/v2/registry"
+)
+
+// TestRegistry
+func TestRegistry(t *testing.T) {
+	sdk, err := polaris.NewSDKContextByAddress("127.0.0.1:8091")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	p := New(sdk)
+
+	r := p.Registry(
+		WithRegistryTimeout(time.Second),
+		WithRegistryHealthy(true),
+		WithRegistryIsolate(false),
+		WithRegistryRetryCount(3),
+		WithRegistryWeight(100),
+		WithRegistryTTL(1000),
+	)
+
+	ins := &registry.ServiceInstance{
+		ID:      "test-ut-1",
+		Name:    "test-ut-1",
+		Version: "v1.0.0",
+		Endpoints: []string{
+			"grpc://127.0.0.1:8080",
+			"http://127.0.0.1:9090",
+		},
+	}
+
+	err = r.Register(context.Background(), ins)
+
+	t.Cleanup(func() {
+		if err = r.Deregister(context.Background(), ins); err != nil {
+			t.Fatal(err)
+		}
+	})
+
+	if err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second * 3)
+	service, err := r.GetService(context.Background(), "test-ut-1")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(service)
+}
+
+func TestWatch(t *testing.T) {
+	sdk, err := polaris.NewSDKContextByAddress("127.0.0.1:8091")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	p := New(sdk)
+
+	r := p.Registry(
+		WithRegistryTimeout(time.Second),
+		WithRegistryHealthy(true),
+		WithRegistryIsolate(false),
+		WithRegistryRetryCount(3),
+		WithRegistryWeight(100),
+		WithRegistryTTL(1000),
+	)
+
+	err = r.Register(context.Background(), &registry.ServiceInstance{
+		ID:      "test-ut",
+		Name:    "test-ut",
+		Version: "v1.0.0",
+		Endpoints: []string{
+			"grpc://127.0.0.1:8080",
+			"http://127.0.0.1:9090",
+		},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second * 3)
+	w, err := r.Watch(context.Background(), "test-ut")
+	if err != nil {
+		t.Fatal(err)
+	}
+	service, err := w.Next()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(service) != 1 {
+		t.Fatalf("want 1, got %d, service %+v", len(service), service)
+	}
+
+	err = r.Register(context.Background(), &registry.ServiceInstance{
+		ID:      "test-ut2",
+		Name:    "test-ut",
+		Version: "v1.0.0",
+		Endpoints: []string{
+			"grpc://127.0.0.2:8080",
+			"http://127.0.0.2:9090",
+		},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second * 3)
+	service, err = w.Next()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(service) != 2 {
+		t.Fatalf("want 1, got %d, service %+v", len(service), service)
+	}
+
+	err = r.Deregister(context.Background(), &registry.ServiceInstance{
+		ID:      "test-ut",
+		Name:    "test-ut",
+		Version: "v1.0.0",
+		Endpoints: []string{
+			"grpc://127.0.0.1:8080",
+			"http://127.0.0.1:9090",
+		},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second * 3)
+	service, err = w.Next()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(service) != 1 {
+		t.Fatalf("want 1, got %d, service %+v", len(service), service)
+	}
+	err = r.Deregister(context.Background(), &registry.ServiceInstance{
+		ID:      "test-ut",
+		Name:    "test-ut",
+		Version: "v1.0.0",
+		Endpoints: []string{
+			"grpc://127.0.0.2:8080",
+			"http://127.0.0.2:9090",
+		},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second * 3)
+	service, err = w.Next()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(service) != 0 {
+		t.Fatalf("want 0, got %d", len(service))
+	}
+}
diff --git a/contrib/polaris/router_test.go b/contrib/polaris/router_test.go
new file mode 100644
index 00000000..53552145
--- /dev/null
+++ b/contrib/polaris/router_test.go
@@ -0,0 +1,206 @@
+package polaris
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"testing"
+	"time"
+
+	"github.com/polarismesh/polaris-go"
+
+	"github.com/go-kratos/kratos/v2"
+	"github.com/go-kratos/kratos/v2/registry"
+	"github.com/go-kratos/kratos/v2/selector"
+)
+
+func TestRouter(t *testing.T) {
+	token, err := getToken("http://127.0.0.1:8090")
+	if err != nil {
+		t.Fatal(err)
+	}
+	data := `
+[
+   {
+       "name":"kratos",
+       "enable":false,
+       "description":"123",
+       "priority":2,
+       "routing_config":{
+           "@type":"type.googleapis.com/v2.RuleRoutingConfig",
+           "sources":[
+               {
+                   "service":"*",
+                   "namespace":"*",
+                   "arguments":[
+
+                   ]
+               }
+           ],
+           "destinations":[
+               {
+                   "labels":{
+                       "az":{
+                           "value":"1",
+                           "value_type":"TEXT",
+                           "type":"EXACT"
+                       }
+                   },
+                   "weight":100,
+                   "priority":1,
+                   "isolate":false,
+                   "name":"实例分组1",
+                   "namespace":"default",
+                   "service":"test-ut"
+               }
+           ]
+       }
+   }
+]
+`
+	res, err := makeJSONRequest("http://127.0.0.1:8090/naming/v2/routings", data, http.MethodPost, map[string]string{
+		"X-Polaris-Token": token,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resJSON := struct {
+		Code      int `json:"code"`
+		Responses []struct {
+			Data struct {
+				ID string `json:"id"`
+			}
+		} `json:"responses"`
+	}{}
+
+	err = json.Unmarshal(res, &resJSON)
+	if err != nil {
+		t.Fatal(err, string(res))
+	}
+	if resJSON.Code != 200000 {
+		t.Fatal("create failed", string(res))
+	}
+
+	// enable router
+	enableData := fmt.Sprintf(`[{"id":"%s","enable":true}]`, resJSON.Responses[0].Data.ID)
+	res, err = makeJSONRequest("http://127.0.0.1:8090/naming/v2/routings/enable", enableData, http.MethodPut, map[string]string{
+		"X-Polaris-Token": token,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = json.Unmarshal(res, &resJSON)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if resJSON.Code != 200000 {
+		t.Fatal("enable failed", string(res))
+	}
+
+	t.Cleanup(func() {
+		enableData := fmt.Sprintf(`[{"id":"%s"}]`, resJSON.Responses[0].Data.ID)
+		res, err = makeJSONRequest("http://127.0.0.1:8090/naming/v2/routings/delete", enableData, http.MethodPost, map[string]string{
+			"X-Polaris-Token": token,
+		})
+		resJSON := &commonRes{}
+		err = json.Unmarshal(res, resJSON)
+		if err != nil {
+			t.Fatal(err, string(res))
+		}
+		if resJSON.Code != 200000 {
+			t.Fatal("delete failed", string(res))
+		}
+	})
+
+	sdk, err := polaris.NewSDKContextByAddress("127.0.0.1:8091")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	p := New(sdk)
+
+	r := p.Registry(
+		WithRegistryTimeout(time.Second),
+		WithRegistryHealthy(true),
+		WithRegistryIsolate(false),
+		WithRegistryRetryCount(0),
+		WithRegistryWeight(100),
+		WithRegistryTTL(10),
+	)
+
+	ins := &registry.ServiceInstance{
+		ID:      "kratos",
+		Name:    "kratos",
+		Version: "v1.0.0",
+		Endpoints: []string{
+			"grpc://127.0.0.1:8080",
+			"http://127.0.0.1:9090",
+		},
+	}
+
+	err = r.Register(context.Background(), ins)
+	if err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second * 5)
+	nodes := []selector.Node{
+		selector.NewNode("grpc", "127.0.0.1:9000", &registry.ServiceInstance{
+			ID:        "123",
+			Name:      "test-ut",
+			Version:   "v1.0.0",
+			Metadata:  map[string]string{"weight": "100", "az": "1"},
+			Endpoints: []string{"grpc://127.0.0.1:9000"},
+		}),
+		selector.NewNode("grpc", "127.0.0.2:9000", &registry.ServiceInstance{
+			ID:        "123",
+			Name:      "test-ut",
+			Version:   "v1.0.0",
+			Metadata:  map[string]string{"weight": "100", "az": "2"},
+			Endpoints: []string{"grpc://127.0.0.2:9000"},
+		}),
+		selector.NewNode("grpc", "127.0.0.3:9000", &registry.ServiceInstance{
+			ID:        "123",
+			Name:      "test-ut",
+			Version:   "v1.0.0",
+			Metadata:  map[string]string{"weight": "100", "az": "1"},
+			Endpoints: []string{"grpc://127.0.0.3:9000"},
+		}),
+	}
+
+	f := p.NodeFilter()
+	ctx := kratos.NewContext(context.Background(), &mockApp{})
+	n := f(ctx, nodes)
+	for _, node := range n {
+		if node.Metadata()["az"] != "1" {
+			t.Fatal("node filter result wrong")
+		}
+		t.Log(node)
+	}
+	if len(n) != 2 {
+		t.Fatal("node filter result wrong")
+	}
+}
+
+type mockApp struct{}
+
+func (m mockApp) ID() string {
+	return "1"
+}
+
+func (m mockApp) Name() string {
+	return "kratos"
+}
+
+func (m mockApp) Version() string {
+	return "v2.0.0"
+}
+
+func (m mockApp) Metadata() map[string]string {
+	return map[string]string{}
+}
+
+func (m mockApp) Endpoint() []string {
+	return []string{"grpc://123.123.123.123:9090"}
+}
diff --git a/contrib/registry/polaris/registry_test.go b/contrib/registry/polaris/registry_test.go
deleted file mode 100644
index 7d696064..00000000
--- a/contrib/registry/polaris/registry_test.go
+++ /dev/null
@@ -1,237 +0,0 @@
-package polaris
-
-import (
-	"context"
-	"testing"
-	"time"
-
-	"github.com/go-kratos/kratos/v2/registry"
-
-	"github.com/polarismesh/polaris-go/pkg/config"
-)
-
-// TestRegistry
-func TestRegistry(t *testing.T) {
-	conf := config.NewDefaultConfiguration([]string{"127.0.0.1:8091"})
-
-	r := NewRegistryWithConfig(
-		conf,
-		WithTimeout(time.Second),
-		WithHeartbeat(true),
-		WithHealthy(true),
-		WithIsolate(true),
-		WithNamespace("default"),
-		WithProtocol("tcp"),
-		WithRetryCount(0),
-		WithWeight(100),
-		WithTTL(10),
-	)
-
-	ctx := context.Background()
-
-	svc := &registry.ServiceInstance{
-		Name:      "kratos-provider-0-",
-		Version:   "test",
-		Metadata:  map[string]string{"app": "kratos"},
-		Endpoints: []string{"tcp://127.0.0.1:9000?isSecure=false"},
-	}
-
-	err := r.Register(ctx, svc)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	time.Sleep(time.Second)
-
-	result, err := r.GetService(context.Background(), "kratos-provider-0-tcp")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if len(result) != 1 {
-		t.Fatal("register error")
-	}
-
-	for _, item := range result {
-		if item.Name != "kratos-provider-0-tcp" || item.Endpoints[0] != "tcp://127.0.0.1:9000" {
-			t.Fatal("register error")
-		}
-	}
-
-	watch, err := r.Watch(ctx, "kratos-provider-0-tcp")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Test update
-	svc.Version = "release1.0.0"
-
-	if err = r.Register(ctx, svc); err != nil {
-		t.Fatal(err)
-	}
-
-	result, err = watch.Next()
-
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if len(result) != 1 || result[0].Version != "release1.0.0" {
-		t.Fatal("register error")
-	}
-	// Test add instance
-	svc1 := &registry.ServiceInstance{
-		Name:      "kratos-provider-0-",
-		Version:   "test",
-		Metadata:  map[string]string{"app": "kratos"},
-		Endpoints: []string{"tcp://127.0.0.1:9001?isSecure=false"},
-	}
-
-	if err = r.Register(ctx, svc1); err != nil {
-		t.Fatal(err)
-	}
-
-	if _, err = watch.Next(); err != nil {
-		t.Fatal(err)
-	}
-
-	result, err = r.GetService(ctx, "kratos-provider-0-tcp")
-
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if len(result) != 2 {
-		t.Fatal("register error")
-	}
-
-	if err = r.Deregister(ctx, svc); err != nil {
-		t.Fatal(err)
-	}
-	if err = r.Deregister(ctx, svc1); err != nil {
-		t.Fatal(err)
-	}
-
-	result, err = watch.Next()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if len(result) != 0 {
-		t.Fatal("register error")
-	}
-}
-
-// TestRegistryMany
-func TestRegistryMany(t *testing.T) {
-	conf := config.NewDefaultConfiguration([]string{"127.0.0.1:8091"})
-
-	r := NewRegistryWithConfig(
-		conf,
-		WithTimeout(time.Second),
-		WithHeartbeat(true),
-		WithHealthy(true),
-		WithIsolate(true),
-		WithNamespace("default"),
-		WithProtocol("tcp"),
-		WithRetryCount(0),
-		WithWeight(100),
-		WithTTL(10),
-	)
-
-	ctx := context.Background()
-
-	// Multi endpoint
-	svc := &registry.ServiceInstance{
-		Name:      "kratos-provider-1-",
-		Version:   "test",
-		Metadata:  map[string]string{"app": "kratos"},
-		Endpoints: []string{"tcp://127.0.0.1:9000?isSecure=false", "tcp://127.0.0.1:9001?isSecure=false"},
-	}
-	// Normal
-	svc1 := &registry.ServiceInstance{
-		Name:      "kratos-provider-2-",
-		Version:   "test",
-		Metadata:  map[string]string{"app": "kratos"},
-		Endpoints: []string{"tcp://127.0.0.1:9002?isSecure=false"},
-	}
-	// Without metadata
-	svc2 := &registry.ServiceInstance{
-		Name:      "kratos-provider-3-",
-		Version:   "test",
-		Endpoints: []string{"tcp://127.0.0.1:9003?isSecure=false"},
-	}
-
-	if err := r.Register(ctx, svc); err != nil {
-		t.Fatal(err)
-	}
-
-	if err := r.Register(ctx, svc1); err != nil {
-		t.Fatal(err)
-	}
-
-	if err := r.Register(ctx, svc2); err != nil {
-		t.Fatal(err)
-	}
-
-	time.Sleep(3 * time.Second)
-
-	result1, err := r.GetService(ctx, "kratos-provider-1-tcp")
-
-	if err != nil || len(result1) != 2 || result1[0].Name != "kratos-provider-1-tcp" {
-		t.Fatal(err)
-	}
-
-	result2, err := r.GetService(ctx, "kratos-provider-2-tcp")
-
-	if err != nil || len(result2) != 1 || result2[0].Name != "kratos-provider-2-tcp" || result2[0].Endpoints[0] != "tcp://127.0.0.1:9002" {
-		t.Fatal(err)
-	}
-
-	result3, err := r.GetService(ctx, "kratos-provider-3-tcp")
-
-	if err != nil || len(result3) != 1 || result3[0].Name != "kratos-provider-3-tcp" || result3[0].Endpoints[0] != "tcp://127.0.0.1:9003" {
-		t.Fatal(err)
-	}
-
-	watch1, err := r.Watch(ctx, "kratos-provider-1-tcp")
-	if err != nil {
-		t.Fatal(err)
-	}
-	watch2, err := r.Watch(ctx, "kratos-provider-2-tcp")
-	if err != nil {
-		t.Fatal(err)
-	}
-	watch3, err := r.Watch(ctx, "kratos-provider-3-tcp")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if err = r.Deregister(ctx, svc); err != nil {
-		t.Fatal(err)
-	}
-
-	result1, err = watch1.Next()
-	if err != nil || len(result1) != 0 {
-		t.Fatal("deregister error")
-	}
-
-	err = r.Deregister(ctx, svc1)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	result2, err = watch2.Next()
-	if err != nil || len(result2) != 0 {
-		t.Fatal("deregister error")
-	}
-	err = r.Deregister(ctx, svc2)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	result3, err = watch3.Next()
-	if err != nil || len(result3) != 0 {
-		t.Fatal("deregister error")
-	}
-}
diff --git a/transport/http/binding/encode_test.go b/transport/http/binding/encode_test.go
index 7e8286c9..4236abf3 100644
--- a/transport/http/binding/encode_test.go
+++ b/transport/http/binding/encode_test.go
@@ -8,7 +8,7 @@ import (
 	"github.com/go-kratos/kratos/v2/internal/testdata/binding"
 )
 
-func TestProtoPath(t *testing.T) {
+func TestEncodeURL(t *testing.T) {
 	tests := []struct {
 		pathTemplate string
 		request      *binding.HelloRequest
diff --git a/transport/http/codec_test.go b/transport/http/codec_test.go
index 562f55de..b701b70f 100644
--- a/transport/http/codec_test.go
+++ b/transport/http/codec_test.go
@@ -11,9 +11,11 @@ import (
 )
 
 func TestDefaultRequestDecoder(t *testing.T) {
+	bodyString := "{\"a\":\"1\", \"b\": 2}"
+
 	req1 := &nethttp.Request{
 		Header: make(nethttp.Header),
-		Body:   io.NopCloser(bytes.NewBufferString("{\"a\":\"1\", \"b\": 2}")),
+		Body:   io.NopCloser(bytes.NewBufferString(bodyString)),
 	}
 	req1.Header.Set("Content-Type", "application/json")
 
@@ -31,6 +33,14 @@ func TestDefaultRequestDecoder(t *testing.T) {
 	if !reflect.DeepEqual(int64(2), v1.B) {
 		t.Errorf("expected %v, got %v", 2, v1.B)
 	}
+
+	data, err := io.ReadAll(req1.Body)
+	if err != nil {
+		t.Errorf("expected no error, got %v", err1)
+	}
+	if !reflect.DeepEqual([]byte(bodyString), data) {
+		t.Errorf("expected %v, got %v", bodyString, data)
+	}
 }
 
 type mockResponseWriter struct {
diff --git a/transport/http/resolver_test.go b/transport/http/resolver_test.go
index e95d8850..4dfe3c5c 100644
--- a/transport/http/resolver_test.go
+++ b/transport/http/resolver_test.go
@@ -131,19 +131,19 @@ func TestResolver(t *testing.T) {
 	}
 
 	// 异步 无需报错
-	_, err = newResolver(context.Background(), &mockDiscoveries{true, false, false}, ta, &mockRebalancer{}, false, false)
+	_, err = newResolver(context.Background(), &mockDiscoveries{true, false, false}, ta, &mockRebalancer{}, false, false, 25)
 	if err != nil {
 		t.Errorf("expect %v, got %v", nil, err)
 	}
 
 	// 同步 一切正常运行
-	_, err = newResolver(context.Background(), &mockDiscoveries{false, false, false}, ta, &mockRebalancer{}, true, true)
+	_, err = newResolver(context.Background(), &mockDiscoveries{false, false, false}, ta, &mockRebalancer{}, true, true, 25)
 	if err != nil {
 		t.Errorf("expect %v, got %v", nil, err)
 	}
 
 	// 同步 但是 next 出错 以及 stop 出错
-	_, err = newResolver(context.Background(), &mockDiscoveries{false, true, true}, ta, &mockRebalancer{}, true, true)
+	_, err = newResolver(context.Background(), &mockDiscoveries{false, true, true}, ta, &mockRebalancer{}, true, true, 25)
 	if err == nil {
 		t.Errorf("expect err, got nil")
 	}
@@ -152,7 +152,7 @@ func TestResolver(t *testing.T) {
 	_, err = newResolver(context.Background(), &mockDiscoveries{false, true, true}, &Target{
 		Scheme:   "discovery",
 		Endpoint: errServiceName,
-	}, &mockRebalancer{}, true, true)
+	}, &mockRebalancer{}, true, true, 25)
 	if err == nil {
 		t.Errorf("expect err, got nil")
 	}
@@ -161,14 +161,14 @@ func TestResolver(t *testing.T) {
 	cancel()
 
 	// 此处应该打印出来 context.Canceled
-	r, err := newResolver(cancelCtx, &mockDiscoveries{false, false, false}, ta, &mockRebalancer{}, false, false)
+	r, err := newResolver(cancelCtx, &mockDiscoveries{false, false, false}, ta, &mockRebalancer{}, false, false, 25)
 	if err != nil {
 		t.Errorf("expect %v, got %v", nil, err)
 	}
 	_ = r.Close()
 
 	// 同步 但是服务取消，此时需要报错
-	_, err = newResolver(cancelCtx, &mockDiscoveries{false, false, true}, ta, &mockRebalancer{}, true, true)
+	_, err = newResolver(cancelCtx, &mockDiscoveries{false, false, true}, ta, &mockRebalancer{}, true, true, 25)
 	if err == nil {
 		t.Errorf("expect ctx cancel err, got nil")
 	}