diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index 4417cad..1f3e316 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -18,7 +18,7 @@
         os:
           - ubuntu-latest
     steps:
-      - name: Set up Go 1.x
+      - name: Set up Go ${{ matrix.go }}
         uses: actions/setup-go@v2
         with:
           go-version: ${{ matrix.go }}
@@ -46,13 +46,6 @@
               go get -v -t -d ./...
           fi
 
-      - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3.2.0
-        with:
-          version: v1.44.2
-          args: --timeout=10m
-          skip-go-installation: true
-
       - name: gofmt
         run: |
           go fmt ./... && git status && [[ -z `git status -s` ]]
@@ -61,6 +54,15 @@
         run: |
           make verify
 
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3.2.0
+        with:
+          version: v1.44.2
+          args: --timeout=10m -v --config=.golangci.yml
+          skip-pkg-cache: true
+          skip-cache: true
+          skip-build-cache: true
+
       # This step only runs when the event type is a pull_request
       - name: Integrate Test
         if: ${{ github.event_name == 'pull_request' }}
diff --git a/CHANGE.md b/CHANGE.md
index c1a8265..4687f92 100644
--- a/CHANGE.md
+++ b/CHANGE.md
@@ -3,13 +3,6 @@
 
 ## 1.5.8
 
-### Bugfixes
-
-- [fix bug](https://github.com/apache/dubbo-go/pull/1662)
-- [decode net stream bytes as getty rule](https://github.com/apache/dubbo-go/pull/1833)
-
-## 1.5.8-rc1
-
 ### New Features
 
 - [support $invokeAsync](https://github.com/apache/dubbo-go/pull/1682)
@@ -27,6 +20,10 @@
 - [1.5.7 MetadataReportConfig lost the error](https://github.com/apache/dubbo-go/pull/1662)
 - [url too many colons in address](https://github.com/apache/dubbo-go/pull/1306)
 - [1.5 fix the nacos namespace from server/client.yml does not take effect](https://github.com/apache/dubbo-go/pull/1576)
+- [url too many colons in address](https://github.com/apache/dubbo-go/pull/1662)
+- [decode net stream bytes as getty rule](https://github.com/apache/dubbo-go/pull/1833)-
+- [remove consul](https://github.com/apache/dubbo-go/pull/1898)
+- [fix etcd consume event listener](https://github.com/apache/dubbo-go/pull/1898)
 
 ## 1.5.7
 
diff --git a/config/reference_config.go b/config/reference_config.go
index 5a975aa..9e1fbc6 100644
--- a/config/reference_config.go
+++ b/config/reference_config.go
@@ -23,11 +23,15 @@
 	"net/url"
 	"strconv"
 	"time"
+)
 
+import (
 	"github.com/creasty/defaults"
 
 	gxstrings "github.com/dubbogo/gost/strings"
+)
 
+import (
 	"github.com/apache/dubbo-go/cluster/directory"
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
@@ -250,6 +254,8 @@
 
 	urlMap.Set(constant.RELEASE_KEY, "dubbo-golang-"+constant.Version)
 	urlMap.Set(constant.SIDE_KEY, (common.RoleType(common.CONSUMER)).Role())
+	// do not add this key, it will cause the etcd client to not work properly
+	//urlMap.Set(constant.CATEGORY_KEY, constant.CONSUMERS_CATEGORY)
 
 	if len(c.RequestTimeout) != 0 {
 		urlMap.Set(constant.TIMEOUT_KEY, c.RequestTimeout)
diff --git a/go.mod b/go.mod
index 22e5188..0e22ed9 100644
--- a/go.mod
+++ b/go.mod
@@ -9,42 +9,35 @@
 	github.com/alibaba/sentinel-golang v1.0.2
 	github.com/apache/dubbo-getty v1.4.7
 	github.com/apache/dubbo-go-hessian2 v1.9.4
-	github.com/coreos/etcd v3.3.25+incompatible
 	github.com/creasty/defaults v1.5.1
 	github.com/dubbogo/go-zookeeper v1.0.3
 	github.com/dubbogo/gost v1.11.21-0.20220503144918-9e5ae44480af
 	github.com/emicklei/go-restful/v3 v3.4.0
-	github.com/fsnotify/fsnotify v1.4.9
+	github.com/fsnotify/fsnotify v1.5.1
 	github.com/go-co-op/gocron v0.1.1
 	github.com/go-resty/resty/v2 v2.3.0
 	github.com/golang/mock v1.4.4
-	github.com/golang/protobuf v1.4.3
+	github.com/golang/protobuf v1.5.2
 	github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645
-	github.com/hashicorp/consul v1.8.0
-	github.com/hashicorp/consul/api v1.5.0
-	github.com/hashicorp/vault/sdk v0.1.14-0.20191112033314-390e96e22eb2
+	github.com/hashicorp/vault/sdk v0.5.0
 	github.com/jinzhu/copier v0.0.0-20190625015134-976e0346caa8
 	github.com/magiconair/properties v1.8.4
-	github.com/mitchellh/mapstructure v1.4.1
+	github.com/mitchellh/mapstructure v1.5.0
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd
 	github.com/nacos-group/nacos-sdk-go v1.0.8
 	github.com/opentracing/opentracing-go v1.2.0
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.9.0
+	github.com/prometheus/client_golang v1.11.0
 	github.com/satori/go.uuid v1.2.1-0.20181028125025-b2ce2384e17b
 	github.com/stretchr/testify v1.7.0
 	github.com/zouyx/agollo/v3 v3.4.5
+	go.etcd.io/etcd/api/v3 v3.5.0
+	go.etcd.io/etcd/client/v3 v3.5.0
 	go.uber.org/atomic v1.9.0
-	go.uber.org/zap v1.16.0
-	google.golang.org/grpc v1.36.0
+	go.uber.org/zap v1.17.0
+	google.golang.org/grpc v1.41.0
 	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/api v0.16.9
 	k8s.io/apimachinery v0.16.9
 	k8s.io/client-go v0.16.9
 )
-
-replace (
-	github.com/coreos/bbolt => go.etcd.io/bbolt v1.3.4
-	github.com/envoyproxy/go-control-plane => github.com/envoyproxy/go-control-plane v0.8.0
-	google.golang.org/grpc => google.golang.org/grpc v1.26.0
-)
diff --git a/go.sum b/go.sum
index 7acd9eb..e4e4ea6 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,9 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
@@ -13,48 +13,19 @@
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/AlexStocks/goext v0.3.3/go.mod h1:3M5j9Pjge4CdkNg2WIjRLUeoPedJHHKwkkglDGSl3Hc=
 github.com/AlexStocks/log4go v1.0.7/go.mod h1:p7vP0/IAoSu7SLjjSvn4NciqYs//Ylyy/FxE0kmqFUg=
-github.com/Azure/azure-sdk-for-go v40.3.0+incompatible h1:NthZg3psrLxvQLN6rVm07pZ9mv2wvGNaBNGQ3fnPvLE=
-github.com/Azure/azure-sdk-for-go v40.3.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
 github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/Azure/go-autorest/autorest v0.9.3/go.mod h1:GsRuLYvwzLjjjRoWEIyMUaYq8GNUx2nRB378IPt/1p0=
-github.com/Azure/go-autorest/autorest v0.10.0 h1:mvdtztBqcL8se7MdrUweNieTNi4kfNG6GOJuurQJpuY=
-github.com/Azure/go-autorest/autorest v0.10.0/go.mod h1:/FALq9T/kS7b5J5qsQ+RSTUdAmGFqi0vUdVNNx8q630=
 github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
-github.com/Azure/go-autorest/autorest/adal v0.8.0/go.mod h1:Z6vX6WXXuyieHAXwMj0S6HY6e6wcHn37qQMBQlvY3lc=
-github.com/Azure/go-autorest/autorest/adal v0.8.1/go.mod h1:ZjhuQClTqx435SRJ2iMlOxPYt3d2C/T/7TiQCVZSn3Q=
-github.com/Azure/go-autorest/autorest/adal v0.8.2 h1:O1X4oexUxnZCaEUGsvMnr8ZGj8HI37tNezwY4npRqA0=
-github.com/Azure/go-autorest/autorest/adal v0.8.2/go.mod h1:ZjhuQClTqx435SRJ2iMlOxPYt3d2C/T/7TiQCVZSn3Q=
-github.com/Azure/go-autorest/autorest/azure/auth v0.4.2 h1:iM6UAvjR97ZIeR93qTcwpKNMpV+/FTWjwEbuPD495Tk=
-github.com/Azure/go-autorest/autorest/azure/auth v0.4.2/go.mod h1:90gmfKdlmKgfjUpnCEpOJzsUEjrWDSLwHIG73tSXddM=
-github.com/Azure/go-autorest/autorest/azure/cli v0.3.1 h1:LXl088ZQlP0SBppGFsRZonW6hSvwgL5gRByMbvUbx8U=
-github.com/Azure/go-autorest/autorest/azure/cli v0.3.1/go.mod h1:ZG5p860J94/0kI9mNJVoIoLgXcirM2gF5i2kWloofxw=
 github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
-github.com/Azure/go-autorest/autorest/date v0.2.0 h1:yW+Zlqf26583pE43KhfnhFcdmSWlm5Ew6bxipnr/tbM=
-github.com/Azure/go-autorest/autorest/date v0.2.0/go.mod h1:vcORJHLJEh643/Ioh9+vPmf1Ij9AEBM5FuBIXLmIy0g=
 github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
 github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/autorest/mocks v0.3.0 h1:qJumjCaCudz+OcqE9/XtEPfvtOjOmKaui4EOpFI6zZc=
-github.com/Azure/go-autorest/autorest/mocks v0.3.0/go.mod h1:a8FDP3DYzQ4RYfVAxAN3SVSiiO77gL2j2ronKKP0syM=
-github.com/Azure/go-autorest/autorest/to v0.3.0 h1:zebkZaadz7+wIQYgC7GXaz3Wb28yKYfVkkBKwc38VF8=
-github.com/Azure/go-autorest/autorest/to v0.3.0/go.mod h1:MgwOyqaIuKdG4TL/2ywSsIWKAfJfgHDo8ObuUk3t5sA=
-github.com/Azure/go-autorest/autorest/validation v0.2.0 h1:15vMO4y76dehZSq7pAaOLQxC6dZYsSrj2GQpflyM/L4=
-github.com/Azure/go-autorest/autorest/validation v0.2.0/go.mod h1:3EEqHnBxQGHXRYq3HT1WyXAvT7LLY3tl70hw6tQIbjI=
-github.com/Azure/go-autorest/logger v0.1.0 h1:ruG4BSDXONFRrZZJ2GUXDiUyVpayPmb1GnWeHDdaNKY=
 github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
-github.com/Azure/go-autorest/tracing v0.5.0 h1:TRn4WjSnkcSy5AEG3pnbtFSwNtwzjr4VYyQflFE619k=
 github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/DataDog/datadog-go v2.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
-github.com/DataDog/datadog-go v3.2.0+incompatible h1:qSG2N4FghB1He/r2mFrWKCaL7dXCilEuNEeAn20fdD4=
 github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
-github.com/Microsoft/go-winio v0.4.3 h1:M3NHMuPgMSUPdE5epwNUHlRPSVzHs8HpRTrVXhR0myo=
-github.com/Microsoft/go-winio v0.4.3/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
 github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
-github.com/NYTimes/gziphandler v1.0.1 h1:iLrQrdwjDd52kHDA5op2UBJFjmOb9g+7scBan4RN8F0=
-github.com/NYTimes/gziphandler v1.0.1/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
@@ -62,14 +33,11 @@
 github.com/RoaringBitmap/roaring v0.6.1/go.mod h1:WZ83fjBF/7uBHi6QoFyfGL4+xuV4Qn+xFkm4+vSzrhE=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d h1:G0m3OIz70MZUWq3EgK3CesDbo8upS2Vm9/P3FtgI+Jk=
 github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
 github.com/Workiva/go-datastructures v1.0.52 h1:PLSK6pwn8mYdaoaCZEMsXBpBotr4HHn9abU0yMQt0NI=
 github.com/Workiva/go-datastructures v1.0.52/go.mod h1:Z+F2Rca0qCsVYDS8z7bAGm8f3UkzuWYS/oBZz5a7VVA=
-github.com/abdullin/seq v0.0.0-20160510034733-d5467c17e7af h1:DBNMBMuMiWYu0b+8KMJuWmfCkcxl09JwdlqwDZZ6U14=
-github.com/abdullin/seq v0.0.0-20160510034733-d5467c17e7af/go.mod h1:5Jv4cbFiHJMsVxt52+i0Ha45fjshj6wxYr1r19tB9bw=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5 h1:rFw4nCn9iMW+Vajsk51NtYIcwSTkXr+JGrMd36kTDJw=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
@@ -88,60 +56,49 @@
 github.com/apache/dubbo-go-hessian2 v1.9.4/go.mod h1:7rEw9guWABQa6Aqb8HeZcsYPHsOS7XT1qtJvkmI6c5w=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e h1:QEF07wC0T1rKkctt1RINW/+RMTVmiwxETico2l3gxJA=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
-github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
-github.com/armon/go-metrics v0.0.0-20190430140413-ec5e00d3c878/go.mod h1:3AMJUQhVx52RsWOnlkpikZr01T/yAVN2gn0861vByNg=
-github.com/armon/go-metrics v0.3.0 h1:B7AQgHi8QSEi4uHu7Sbsga+IJDU+CENgjxoo81vDUqU=
-github.com/armon/go-metrics v0.3.0/go.mod h1:zXjbSimjXTd7vOpY8B0/2LpvNvDoXBuplAD+gJD3GYs=
+github.com/armon/go-metrics v0.3.9/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/armon/go-radix v1.0.0 h1:F4z6KzEeeQIMeLFa97iZU6vupzoecKdU5TX24SNppXI=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
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@@ -235,13 +184,12 @@
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@@ -253,11 +201,9 @@
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@@ -267,7 +213,6 @@
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@@ -284,6 +229,7 @@
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@@ -292,22 +238,25 @@
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@@ -315,18 +264,14 @@
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@@ -335,7 +280,6 @@
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@@ -347,122 +291,70 @@
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@@ -837,31 +680,29 @@
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@@ -870,14 +711,15 @@
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@@ -885,9 +727,10 @@
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@@ -902,12 +745,10 @@
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@@ -916,8 +757,10 @@
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+golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -1038,17 +883,16 @@
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
-google.golang.org/api v0.13.0 h1:Q3Ui3V3/CVinFWFiW39Iw0kMuVrRzYX0wN6OPFp0lTA=
 google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/appengine v1.6.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.6.1 h1:QzqyMA1tlu6CgqCDUtU9V+ZKhLFT2dkJuANu5QaxI3I=
 google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
+google.golang.org/genproto v0.0.0-20170818010345-ee236bd376b0/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/genproto v0.0.0-20190404172233-64821d5d2107/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
@@ -1060,10 +904,30 @@
 google.golang.org/genproto v0.0.0-20200423170343-7949de9c1215/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
-google.golang.org/genproto v0.0.0-20200806141610-86f49bd18e98 h1:LCO0fg4kb6WwkXQXRQQgUYsFeFb5taTX5WAx5O/Vt28=
 google.golang.org/genproto v0.0.0-20200806141610-86f49bd18e98/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/grpc v1.26.0 h1:2dTRdpdFEEhJYQD8EMLB61nnrzSCTbG38PhqdhvOltg=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c h1:wtujag7C+4D6KMoulW9YauvK2lgdvCMS260jsqqBXr0=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
+google.golang.org/grpc v1.8.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
+google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.20.0/go.mod h1:chYK+tFQF0nDUGJgXMSgLCQk3phJEuONr2DCgLDdAQM=
+google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
+google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
+google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
+google.golang.org/grpc v1.22.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
+google.golang.org/grpc v1.32.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
+google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
+google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.41.0 h1:f+PlOh7QV4iIJkPrx5NQ7qaNGFQ3OTse67yaDHfju4E=
+google.golang.org/grpc v1.41.0/go.mod h1:U3l9uK9J0sini8mHphKoXyaqDA/8VyGnDee1zzIUK6k=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -1072,11 +936,12 @@
 google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.24.0 h1:UhZDfRO8JRQru4/+LlLE0BRKGF8L+PICnvYZmx/fEGA=
 google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
-gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
-gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d/go.mod h1:cuepJuh7vyXfUyUwEgHQXw849cJrilpS5NeIjOWESAw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20160105164936-4f90aeace3a2/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -1088,18 +953,13 @@
 gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
-gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
 gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/ini.v1 v1.42.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/mgo.v2 v2.0.0-20160818015218-f2b6f6c918c4/go.mod h1:yeKp02qBN3iKW1OzL3MGk2IdtZzaj7SFntXj72NppTA=
-gopkg.in/resty.v1 v1.12.0 h1:CuXP0Pjfw9rOuY6EP+UvtNvt5DSqHpIxILZKT/quCZI=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
-gopkg.in/square/go-jose.v2 v2.3.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
-gopkg.in/square/go-jose.v2 v2.4.1 h1:H0TmLt7/KmzlrDOpa1F+zr0Tk90PbJYBfsVUmRLrf9Y=
-gopkg.in/square/go-jose.v2 v2.4.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
@@ -1114,15 +974,15 @@
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-istio.io/gogo-genproto v0.0.0-20190124151557-6d926a6e6feb/go.mod h1:eIDJ6jNk/IeJz6ODSksHl5Aiczy5JUq6vFhJWI5OtiI=
 k8s.io/api v0.16.9 h1:3vCx0WX9qcg1Hv4aQ/G1tiIKectGVuimvPVTJU4VOCA=
 k8s.io/api v0.16.9/go.mod h1:Y7dZNHs1Xy0mSwSlzL9QShi6qkljnN41yR8oWCRTDe8=
 k8s.io/apimachinery v0.16.9 h1:ESUZ4hMBUKF2kn2HBFL5zM/wQv4j/0uRbR7AjgqGJ4o=
@@ -1138,7 +998,6 @@
 k8s.io/kube-openapi v0.0.0-20190816220812-743ec37842bf/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
 k8s.io/utils v0.0.0-20190801114015-581e00157fb1 h1:+ySTxfHnfzZb9ys375PXNlLhkJPLKgHajBU0N62BDvE=
 k8s.io/utils v0.0.0-20190801114015-581e00157fb1/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
-launchpad.net/gocheck v0.0.0-20140225173054-000000000087/go.mod h1:hj7XX3B/0A+80Vse0e+BUHsHMTEhd0O4cpUHr/e/BUM=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
diff --git a/integrate_test.sh b/integrate_test.sh
index d9bf297..c382712 100644
--- a/integrate_test.sh
+++ b/integrate_test.sh
@@ -40,6 +40,7 @@
     git clone -b "$3" https://github.com/apache/dubbo-go-samples.git samples && cd samples
 
     # update dubbo-go to current commit id
+    go mod edit -replace=google.golang.org/grpc=google.golang.org/grpc@v1.41.0
     go mod edit -replace=github.com/apache/dubbo-go=github.com/"$1"@"$2"
 
     # start integrate test
diff --git a/metadata/report/consul/report.go b/metadata/report/consul/report.go
deleted file mode 100644
index e211f7f..0000000
--- a/metadata/report/consul/report.go
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	consul "github.com/hashicorp/consul/api"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/extension"
-	"github.com/apache/dubbo-go/metadata/identifier"
-	"github.com/apache/dubbo-go/metadata/report"
-	"github.com/apache/dubbo-go/metadata/report/factory"
-)
-
-var (
-	emptyStrSlice = make([]string, 0)
-)
-
-func init() {
-	mf := &consulMetadataReportFactory{}
-	extension.SetMetadataReportFactory("consul", func() factory.MetadataReportFactory {
-		return mf
-	})
-}
-
-// consulMetadataReport is the implementation of
-// MetadataReport based on consul.
-type consulMetadataReport struct {
-	client *consul.Client
-}
-
-// StoreProviderMetadata stores the metadata.
-func (m *consulMetadataReport) StoreProviderMetadata(providerIdentifier *identifier.MetadataIdentifier, serviceDefinitions string) error {
-	kv := &consul.KVPair{Key: providerIdentifier.GetIdentifierKey(), Value: []byte(serviceDefinitions)}
-	_, err := m.client.KV().Put(kv, nil)
-	return err
-}
-
-// StoreConsumerMetadata stores the metadata.
-func (m *consulMetadataReport) StoreConsumerMetadata(consumerMetadataIdentifier *identifier.MetadataIdentifier, serviceParameterString string) error {
-	kv := &consul.KVPair{Key: consumerMetadataIdentifier.GetIdentifierKey(), Value: []byte(serviceParameterString)}
-	_, err := m.client.KV().Put(kv, nil)
-	return err
-}
-
-// SaveServiceMetadata saves the metadata.
-func (m *consulMetadataReport) SaveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier, url *common.URL) error {
-	kv := &consul.KVPair{Key: metadataIdentifier.GetIdentifierKey(), Value: []byte(url.String())}
-	_, err := m.client.KV().Put(kv, nil)
-	return err
-}
-
-// RemoveServiceMetadata removes the metadata.
-func (m *consulMetadataReport) RemoveServiceMetadata(metadataIdentifier *identifier.ServiceMetadataIdentifier) error {
-	k := metadataIdentifier.GetIdentifierKey()
-	_, err := m.client.KV().Delete(k, nil)
-	return err
-}
-
-// GetExportedURLs gets the urls.
-func (m *consulMetadataReport) GetExportedURLs(metadataIdentifier *identifier.ServiceMetadataIdentifier) ([]string, error) {
-	k := metadataIdentifier.GetIdentifierKey()
-	kv, _, err := m.client.KV().Get(k, nil)
-	if err != nil || kv == nil {
-		return emptyStrSlice, err
-	}
-	return []string{string(kv.Value)}, nil
-}
-
-// SaveSubscribedData saves the urls.
-func (m *consulMetadataReport) SaveSubscribedData(subscriberMetadataIdentifier *identifier.SubscriberMetadataIdentifier, urls string) error {
-	kv := &consul.KVPair{Key: subscriberMetadataIdentifier.GetIdentifierKey(), Value: []byte(urls)}
-	_, err := m.client.KV().Put(kv, nil)
-	return err
-}
-
-// GetSubscribedURLs gets the urls.
-func (m *consulMetadataReport) GetSubscribedURLs(subscriberMetadataIdentifier *identifier.SubscriberMetadataIdentifier) ([]string, error) {
-	k := subscriberMetadataIdentifier.GetIdentifierKey()
-	kv, _, err := m.client.KV().Get(k, nil)
-	if err != nil || kv == nil {
-		return emptyStrSlice, err
-	}
-	return []string{string(kv.Value)}, nil
-}
-
-// GetServiceDefinition gets the service definition.
-func (m *consulMetadataReport) GetServiceDefinition(metadataIdentifier *identifier.MetadataIdentifier) (string, error) {
-	k := metadataIdentifier.GetIdentifierKey()
-	kv, _, err := m.client.KV().Get(k, nil)
-	if err != nil || kv == nil {
-		return "", err
-	}
-	return string(kv.Value), nil
-}
-
-type consulMetadataReportFactory struct {
-}
-
-// nolint
-func (mf *consulMetadataReportFactory) CreateMetadataReport(url *common.URL) report.MetadataReport {
-	config := &consul.Config{Address: url.Location}
-	client, err := consul.NewClient(config)
-	if err != nil {
-		panic(err)
-	}
-	return &consulMetadataReport{client: client}
-}
diff --git a/metadata/report/consul/report_test.go b/metadata/report/consul/report_test.go
deleted file mode 100644
index 51e9317..0000000
--- a/metadata/report/consul/report_test.go
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"encoding/json"
-	"net/url"
-	"strconv"
-	"testing"
-)
-
-import (
-	"github.com/stretchr/testify/assert"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/constant"
-	"github.com/apache/dubbo-go/common/extension"
-	"github.com/apache/dubbo-go/metadata/identifier"
-	"github.com/apache/dubbo-go/metadata/report"
-	"github.com/apache/dubbo-go/remoting/consul"
-)
-
-func newProviderRegistryUrl(host string, port int) *common.URL {
-	return common.NewURLWithOptions(
-		common.WithIp(host),
-		common.WithPort(strconv.Itoa(port)),
-		common.WithParams(url.Values{}),
-		common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)),
-	)
-}
-
-func newBaseMetadataIdentifier(side string) *identifier.BaseMetadataIdentifier {
-	return &identifier.BaseMetadataIdentifier{
-		ServiceInterface: "org.apache.HelloWorld",
-		Version:          "1.0.0",
-		Group:            "group",
-		Side:             side,
-	}
-}
-
-func newMetadataIdentifier(side string) *identifier.MetadataIdentifier {
-	return &identifier.MetadataIdentifier{
-		Application:            "application",
-		BaseMetadataIdentifier: *newBaseMetadataIdentifier(side),
-	}
-}
-
-func newServiceMetadataIdentifier(side string) *identifier.ServiceMetadataIdentifier {
-	return &identifier.ServiceMetadataIdentifier{
-		Revision:               "1.0",
-		Protocol:               "dubbo",
-		BaseMetadataIdentifier: *newBaseMetadataIdentifier(side),
-	}
-}
-
-func newSubscribeMetadataIdentifier(side string) *identifier.SubscriberMetadataIdentifier {
-	return &identifier.SubscriberMetadataIdentifier{
-		Revision:           "1.0",
-		MetadataIdentifier: *newMetadataIdentifier(side),
-	}
-}
-
-type consulMetadataReportTestSuite struct {
-	t *testing.T
-	m report.MetadataReport
-}
-
-func newConsulMetadataReportTestSuite(t *testing.T, m report.MetadataReport) *consulMetadataReportTestSuite {
-	return &consulMetadataReportTestSuite{t: t, m: m}
-}
-
-func (suite *consulMetadataReportTestSuite) testStoreProviderMetadata() {
-	providerMi := newMetadataIdentifier("provider")
-	providerMeta := "provider"
-	err := suite.m.StoreProviderMetadata(providerMi, providerMeta)
-	assert.NoError(suite.t, err)
-}
-
-func (suite *consulMetadataReportTestSuite) testStoreConsumerMetadata() {
-	consumerMi := newMetadataIdentifier("consumer")
-	consumerMeta := "consumer"
-	err := suite.m.StoreProviderMetadata(consumerMi, consumerMeta)
-	assert.NoError(suite.t, err)
-}
-
-func (suite *consulMetadataReportTestSuite) testSaveServiceMetadata(url *common.URL) {
-	serviceMi := newServiceMetadataIdentifier("provider")
-	err := suite.m.SaveServiceMetadata(serviceMi, url)
-	assert.NoError(suite.t, err)
-}
-
-func (suite *consulMetadataReportTestSuite) testRemoveServiceMetadata() {
-	serviceMi := newServiceMetadataIdentifier("provider")
-	err := suite.m.RemoveServiceMetadata(serviceMi)
-	assert.NoError(suite.t, err)
-}
-
-func (suite *consulMetadataReportTestSuite) testGetExportedURLs() {
-	serviceMi := newServiceMetadataIdentifier("provider")
-	urls, err := suite.m.GetExportedURLs(serviceMi)
-	assert.Equal(suite.t, 1, len(urls))
-	assert.NoError(suite.t, err)
-}
-
-func (suite *consulMetadataReportTestSuite) testSaveSubscribedData(url *common.URL) {
-	subscribeMi := newSubscribeMetadataIdentifier("provider")
-	urls := []string{url.String()}
-	bytes, _ := json.Marshal(urls)
-	err := suite.m.SaveSubscribedData(subscribeMi, string(bytes))
-	assert.Nil(suite.t, err)
-}
-
-func (suite *consulMetadataReportTestSuite) testGetSubscribedURLs() {
-	subscribeMi := newSubscribeMetadataIdentifier("provider")
-	urls, err := suite.m.GetSubscribedURLs(subscribeMi)
-	assert.Equal(suite.t, 1, len(urls))
-	assert.NoError(suite.t, err)
-}
-
-func (suite *consulMetadataReportTestSuite) testGetServiceDefinition() {
-	providerMi := newMetadataIdentifier("provider")
-	providerMeta, err := suite.m.GetServiceDefinition(providerMi)
-	assert.Equal(suite.t, "provider", providerMeta)
-	assert.NoError(suite.t, err)
-}
-
-func test1(t *testing.T) {
-	consulAgent := consul.NewConsulAgent(t, 8500)
-	defer func() {
-		_ = consulAgent.Shutdown()
-	}()
-
-	url := newProviderRegistryUrl("localhost", 8500)
-	mf := extension.GetMetadataReportFactory("consul")
-	m := mf.CreateMetadataReport(url)
-
-	suite := newConsulMetadataReportTestSuite(t, m)
-	suite.testStoreProviderMetadata()
-	suite.testStoreConsumerMetadata()
-	suite.testSaveServiceMetadata(url)
-	suite.testGetExportedURLs()
-	suite.testRemoveServiceMetadata()
-	suite.testSaveSubscribedData(url)
-	suite.testGetSubscribedURLs()
-	suite.testGetServiceDefinition()
-}
-
-func TestConsulMetadataReport(t *testing.T) {
-	t.Run("test1", test1)
-}
diff --git a/metadata/report/etcd/report.go b/metadata/report/etcd/report.go
index 1939b91..cb6aa74 100644
--- a/metadata/report/etcd/report.go
+++ b/metadata/report/etcd/report.go
@@ -23,6 +23,10 @@
 )
 
 import (
+	etcd "github.com/dubbogo/gost/database/kv/etcd/v3"
+)
+
+import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
@@ -30,10 +34,13 @@
 	"github.com/apache/dubbo-go/metadata/identifier"
 	"github.com/apache/dubbo-go/metadata/report"
 	"github.com/apache/dubbo-go/metadata/report/factory"
-	"github.com/apache/dubbo-go/remoting/etcdv3"
 )
 
-const DEFAULT_ROOT = "dubbo"
+const (
+	DEFAULT_ROOT = "dubbo"
+	// metadataETCDV3Client client name
+	MetadataETCDV3Client = "etcd metadata"
+)
 
 func init() {
 	extension.SetMetadataReportFactory(constant.ETCDV3_KEY, func() factory.MetadataReportFactory {
@@ -43,7 +50,7 @@
 
 // etcdMetadataReport is the implementation of MetadataReport based etcd
 type etcdMetadataReport struct {
-	client *etcdv3.Client
+	client *etcd.Client
 	root   string
 }
 
@@ -121,7 +128,7 @@
 func (e *etcdMetadataReportFactory) CreateMetadataReport(url *common.URL) report.MetadataReport {
 	timeout, _ := time.ParseDuration(url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT))
 	addresses := strings.Split(url.Location, ",")
-	client, err := etcdv3.NewClient(etcdv3.MetadataETCDV3Client, addresses, timeout, 1)
+	client, err := etcd.NewClient(MetadataETCDV3Client, addresses, timeout, 1)
 	if err != nil {
 		logger.Errorf("Could not create etcd metadata report. URL: %s,error:{%v}", url.String(), err)
 		return nil
diff --git a/metadata/report/etcd/report_test.go b/metadata/report/etcd/report_test.go
deleted file mode 100644
index 1c731d1..0000000
--- a/metadata/report/etcd/report_test.go
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package etcd
-
-import (
-	"encoding/json"
-	"net/url"
-	"strconv"
-	"testing"
-)
-
-import (
-	"github.com/coreos/etcd/embed"
-
-	"github.com/stretchr/testify/assert"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/constant"
-	"github.com/apache/dubbo-go/metadata/identifier"
-)
-
-const defaultEtcdV3WorkDir = "/tmp/default-dubbo-go-registry.etcd"
-
-func initEtcd(t *testing.T) *embed.Etcd {
-	DefaultListenPeerURLs := "http://localhost:2380"
-	DefaultListenClientURLs := "http://localhost:2379"
-	lpurl, _ := url.Parse(DefaultListenPeerURLs)
-	lcurl, _ := url.Parse(DefaultListenClientURLs)
-	cfg := embed.NewConfig()
-	cfg.LPUrls = []url.URL{*lpurl}
-	cfg.LCUrls = []url.URL{*lcurl}
-	cfg.Dir = defaultEtcdV3WorkDir
-	e, err := embed.StartEtcd(cfg)
-	if err != nil {
-		t.Fatal(err)
-	}
-	return e
-}
-
-func TestEtcdMetadataReportFactory_CreateMetadataReport(t *testing.T) {
-	e := initEtcd(t)
-	url, err := common.NewURL("registry://127.0.0.1:2379", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
-	if err != nil {
-		t.Fatal(err)
-	}
-	metadataReportFactory := &etcdMetadataReportFactory{}
-	metadataReport := metadataReportFactory.CreateMetadataReport(url)
-	assert.NotNil(t, metadataReport)
-	e.Close()
-}
-
-func TestEtcdMetadataReport_CRUD(t *testing.T) {
-	e := initEtcd(t)
-	url, err := common.NewURL("registry://127.0.0.1:2379", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
-	if err != nil {
-		t.Fatal(err)
-	}
-	metadataReportFactory := &etcdMetadataReportFactory{}
-	metadataReport := metadataReportFactory.CreateMetadataReport(url)
-	assert.NotNil(t, metadataReport)
-
-	err = metadataReport.StoreConsumerMetadata(newMetadataIdentifier("consumer"), "consumer metadata")
-	assert.Nil(t, err)
-
-	err = metadataReport.StoreProviderMetadata(newMetadataIdentifier("provider"), "provider metadata")
-	assert.Nil(t, err)
-
-	serviceMi := newServiceMetadataIdentifier()
-	serviceUrl, err := common.NewURL("registry://localhost:8848", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
-	assert.Nil(t, err)
-	err = metadataReport.SaveServiceMetadata(serviceMi, serviceUrl)
-	assert.Nil(t, err)
-
-	subMi := newSubscribeMetadataIdentifier()
-	urlList := make([]string, 0, 1)
-	urlList = append(urlList, serviceUrl.String())
-	urls, _ := json.Marshal(urlList)
-	err = metadataReport.SaveSubscribedData(subMi, string(urls))
-	assert.Nil(t, err)
-
-	err = metadataReport.RemoveServiceMetadata(serviceMi)
-	assert.Nil(t, err)
-
-	e.Close()
-}
-
-func newSubscribeMetadataIdentifier() *identifier.SubscriberMetadataIdentifier {
-	return &identifier.SubscriberMetadataIdentifier{
-		Revision:           "subscribe",
-		MetadataIdentifier: *newMetadataIdentifier("provider"),
-	}
-
-}
-
-func newServiceMetadataIdentifier() *identifier.ServiceMetadataIdentifier {
-	return &identifier.ServiceMetadataIdentifier{
-		Protocol: "nacos",
-		Revision: "a",
-		BaseMetadataIdentifier: identifier.BaseMetadataIdentifier{
-			ServiceInterface: "com.test.MyTest",
-			Version:          "1.0.0",
-			Group:            "test_group",
-			Side:             "service",
-		},
-	}
-}
-
-func newMetadataIdentifier(side string) *identifier.MetadataIdentifier {
-	return &identifier.MetadataIdentifier{
-		Application: "test",
-		BaseMetadataIdentifier: identifier.BaseMetadataIdentifier{
-			ServiceInterface: "com.test.MyTest",
-			Version:          "1.0.0",
-			Group:            "test_group",
-			Side:             side,
-		},
-	}
-}
diff --git a/registry/consul/listener.go b/registry/consul/listener.go
deleted file mode 100644
index a47a2532..0000000
--- a/registry/consul/listener.go
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"sync"
-)
-
-import (
-	consul "github.com/hashicorp/consul/api"
-	"github.com/hashicorp/consul/api/watch"
-
-	perrors "github.com/pkg/errors"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/logger"
-	"github.com/apache/dubbo-go/registry"
-	"github.com/apache/dubbo-go/remoting"
-)
-
-// Consul listener wraps the consul watcher, to
-// listen the service information change in consul
-// registry.
-type consulListener struct {
-	// Registry url.
-	registryUrl *common.URL
-
-	// Consumer url.
-	consumerUrl *common.URL
-
-	// Consul watcher.
-	plan *watch.Plan
-
-	// Most recent service urls return by
-	// watcher.
-	urls []*common.URL
-
-	// All service information changes will
-	// be wrapped into ServiceEvent, and be
-	// sent into eventCh. Then listener's
-	// Next method will get event from eventCh,
-	// and return to upstream.
-	eventCh chan *registry.ServiceEvent
-
-	// All errors, happening in the listening
-	// period, will be caught and send into
-	// errCh. Then listener's Next method will
-	// get error from errCh, and return to
-	// upstream.
-	errCh chan error
-
-	// Done field represents whether consul
-	// listener has been closed. When closing
-	// listener, this field will be closed,
-	// and will notify consul watcher to close.
-	done chan struct{}
-
-	// After listener notifies consul watcher
-	// to close, listener will call wg.wait to
-	// make sure that consul watcher is closed
-	// before the listener closes.
-	wg sync.WaitGroup
-}
-
-func newConsulListener(registryUrl *common.URL, consumerUrl *common.URL) (*consulListener, error) {
-	params := make(map[string]interface{}, 8)
-	params["type"] = "service"
-	params["service"] = consumerUrl.Service()
-	params["tag"] = "dubbo"
-	params["passingonly"] = true
-	plan, err := watch.Parse(params)
-	if err != nil {
-		return nil, err
-	}
-
-	listener := &consulListener{
-		registryUrl: registryUrl,
-		consumerUrl: consumerUrl,
-		plan:        plan,
-		urls:        make([]*common.URL, 0, 8),
-		eventCh:     make(chan *registry.ServiceEvent, 32),
-		errCh:       make(chan error, 32),
-		done:        make(chan struct{}),
-	}
-
-	// Set handler to consul watcher, and
-	// make watcher begin to watch service
-	// information change.
-	listener.plan.Handler = listener.handler
-	listener.wg.Add(1)
-	go listener.run()
-	return listener, nil
-}
-
-// Wrap the consul watcher run api. There are three
-// conditions that will finish the run:
-//   - close done
-//   - call plan.Stop
-//   - close eventCh and errCh
-// If run meets first two conditions, it will close
-// gracefully. However, if run meets the last condition,
-// run will close with panic, so use recover to cover
-// this case.
-func (l *consulListener) run() {
-	defer func() {
-		p := recover()
-		if p != nil {
-			logger.Warnf("consul listener finish with panic %v", p)
-		}
-		l.wg.Done()
-	}()
-
-	for {
-		select {
-		case <-l.done:
-			return
-		default:
-			err := l.plan.Run(l.registryUrl.Location)
-			if err != nil {
-				l.errCh <- err
-			}
-		}
-	}
-}
-
-func (l *consulListener) handler(idx uint64, raw interface{}) {
-	var (
-		service *consul.ServiceEntry
-		url     *common.URL
-		ok      bool
-		err     error
-	)
-
-	services, ok := raw.([]*consul.ServiceEntry)
-	if !ok {
-		err = perrors.New("handler get non ServiceEntry type parameter")
-		l.errCh <- err
-		return
-	}
-	newUrls := make([]*common.URL, 0, 8)
-	events := make([]*registry.ServiceEvent, 0, 8)
-
-	for _, service = range services {
-		url, err = retrieveURL(service)
-		if err != nil {
-			l.errCh <- err
-			return
-		}
-		newUrls = append(newUrls, url)
-	}
-
-	for _, url = range l.urls {
-		ok = in(url, newUrls)
-		if !ok {
-			event := &registry.ServiceEvent{Action: remoting.EventTypeDel, Service: url}
-			events = append(events, event)
-		}
-	}
-
-	for _, url = range newUrls {
-		ok = in(url, l.urls)
-		if !ok {
-			event := &registry.ServiceEvent{Action: remoting.EventTypeAdd, Service: url}
-			events = append(events, event)
-		}
-	}
-
-	l.urls = newUrls
-	for _, event := range events {
-		l.eventCh <- event
-	}
-}
-
-// Next returns the service event from consul.
-func (l *consulListener) Next() (*registry.ServiceEvent, error) {
-	select {
-	case event := <-l.eventCh:
-		return event, nil
-	case err := <-l.errCh:
-		return nil, err
-	}
-}
-
-// Close the listener.
-func (l *consulListener) Close() {
-	close(l.done)
-	l.plan.Stop()
-	close(l.eventCh)
-	close(l.errCh)
-	l.wg.Wait()
-}
diff --git a/registry/consul/listener_test.go b/registry/consul/listener_test.go
deleted file mode 100644
index 7dccbaa..0000000
--- a/registry/consul/listener_test.go
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"github.com/stretchr/testify/assert"
-)
-
-import (
-	"github.com/apache/dubbo-go/remoting"
-)
-
-func (suite *consulRegistryTestSuite) testListener(action remoting.EventType) {
-	event, err := suite.listener.Next()
-	assert.NoError(suite.t, err)
-	assert.Equal(suite.t, action, event.Action)
-	assert.True(suite.t, suite.providerUrl.URLEqual(event.Service))
-}
diff --git a/registry/consul/registry.go b/registry/consul/registry.go
deleted file mode 100644
index a2935b1..0000000
--- a/registry/consul/registry.go
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"strconv"
-	"time"
-)
-
-import (
-	gxtime "github.com/dubbogo/gost/time"
-
-	consul "github.com/hashicorp/consul/api"
-
-	perrors "github.com/pkg/errors"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/constant"
-	"github.com/apache/dubbo-go/common/extension"
-	"github.com/apache/dubbo-go/common/logger"
-	"github.com/apache/dubbo-go/registry"
-)
-
-const (
-	registryConnDelay             = 3
-	registryDestroyDefaultTimeout = time.Second * 3
-)
-
-func init() {
-	extension.SetRegistry("consul", newConsulRegistry)
-}
-
-// Consul registry wraps the consul client, to
-// register and subscribe service.
-type consulRegistry struct {
-	// Registry url.
-	*common.URL
-
-	// Consul client.
-	client *consul.Client
-
-	// Done field represents whether
-	// consul registry is closed.
-	done chan struct{}
-
-	// registeredURLs field represents all URLs that have been registered
-	// will be unregistered when destroyed
-	registeredURLs []*common.URL
-}
-
-func newConsulRegistry(url *common.URL) (registry.Registry, error) {
-	config := &consul.Config{Address: url.Location}
-	client, err := consul.NewClient(config)
-	if err != nil {
-		return nil, err
-	}
-
-	r := &consulRegistry{
-		URL:    url,
-		client: client,
-		done:   make(chan struct{}),
-	}
-
-	return r, nil
-}
-
-// Register register @url
-// it delegate the job to register() method
-func (r *consulRegistry) Register(url *common.URL) error {
-	var err error
-
-	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
-	if role == common.PROVIDER {
-		err = r.register(url)
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// register actually register the @url
-func (r *consulRegistry) register(url *common.URL) error {
-	r.registeredURLs = append(r.registeredURLs, url.Clone())
-	service, err := buildService(url)
-	if err != nil {
-		return err
-	}
-	return r.client.Agent().ServiceRegister(service)
-}
-
-// UnRegister unregister the @url
-// it delegate the job to unregister() method
-func (r *consulRegistry) UnRegister(url *common.URL) error {
-	var err error
-
-	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
-	if role == common.PROVIDER {
-		err = r.unregister(url)
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// unregister actually unregister the @url
-func (r *consulRegistry) unregister(url *common.URL) error {
-	return r.client.Agent().ServiceDeregister(buildId(url))
-}
-
-// Subscribe subscribe the @url with the @notifyListener
-func (r *consulRegistry) Subscribe(url *common.URL, notifyListener registry.NotifyListener) error {
-	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
-	if role == common.CONSUMER {
-		r.subscribe(url, notifyListener)
-	}
-	return nil
-}
-
-// UnSubscribe is not supported yet
-func (r *consulRegistry) UnSubscribe(url *common.URL, notifyListener registry.NotifyListener) error {
-	return perrors.New("UnSubscribe not support in consulRegistry")
-}
-
-// subscribe actually subscribe the @url
-// it loops forever until success
-func (r *consulRegistry) subscribe(url *common.URL, notifyListener registry.NotifyListener) {
-	for {
-		if !r.IsAvailable() {
-			logger.Warnf("event listener game over.")
-			return
-		}
-
-		listener, err := r.getListener(url)
-		if err != nil {
-			if !r.IsAvailable() {
-				logger.Warnf("event listener game over.")
-				return
-			}
-			logger.Warnf("getListener() = err:%v", perrors.WithStack(err))
-			time.Sleep(time.Duration(registryConnDelay) * time.Second)
-			continue
-		}
-
-		for {
-			serviceEvent, err := listener.Next()
-			if err != nil {
-				logger.Warnf("Selector.watch() = error{%v}", perrors.WithStack(err))
-				listener.Close()
-				return
-			}
-
-			logger.Infof("update begin, service event: %v", serviceEvent.String())
-			notifyListener.Notify(serviceEvent)
-		}
-	}
-}
-
-func (r *consulRegistry) getListener(url *common.URL) (registry.Listener, error) {
-	listener, err := newConsulListener(r.URL, url)
-	return listener, err
-}
-
-// GetURL get registry URL of consul registry center
-func (r *consulRegistry) GetURL() *common.URL {
-	return r.URL
-}
-
-// IsAvailable checks consul registry center whether is available
-func (r *consulRegistry) IsAvailable() bool {
-	select {
-	case <-r.done:
-		return false
-	default:
-		return true
-	}
-}
-
-// Destroy consul registry center
-func (r *consulRegistry) Destroy() {
-	done := make(chan struct{}, 1)
-	go func() {
-		defer func() {
-			if e := recover(); e != nil {
-				logger.Errorf("consulRegistry destroy with panic: %v", e)
-			}
-			done <- struct{}{}
-		}()
-		for _, url := range r.registeredURLs {
-			if err := r.UnRegister(url); err != nil {
-				logger.Errorf("consul registry unregister with err: %s", err.Error())
-			}
-		}
-	}()
-	select {
-	case <-done:
-		logger.Infof("consulRegistry unregister done")
-	case <-gxtime.After(registryDestroyDefaultTimeout):
-		logger.Errorf("consul unregister timeout")
-	}
-
-	close(r.done)
-}
diff --git a/registry/consul/registry_test.go b/registry/consul/registry_test.go
deleted file mode 100644
index b300f75..0000000
--- a/registry/consul/registry_test.go
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"github.com/stretchr/testify/assert"
-)
-
-func (suite *consulRegistryTestSuite) testNewProviderRegistry() {
-	providerRegistryUrl := newProviderRegistryUrl(registryHost, registryPort)
-	providerRegistry, err := newConsulRegistry(providerRegistryUrl)
-	assert.NoError(suite.t, err)
-	suite.providerRegistry = providerRegistry
-}
-
-func (suite *consulRegistryTestSuite) testNewConsumerRegistry() {
-	consumerRegistryUrl := newConsumerRegistryUrl(registryHost, registryPort)
-	consumerRegistry, err := newConsulRegistry(consumerRegistryUrl)
-	assert.NoError(suite.t, err)
-	suite.consumerRegistry = consumerRegistry.(*consulRegistry)
-}
-
-func (suite *consulRegistryTestSuite) testRegister() {
-	providerUrl := newProviderUrl(providerHost, providerPort, service, protocol)
-	suite.providerUrl = providerUrl
-	err := suite.providerRegistry.Register(providerUrl)
-	assert.NoError(suite.t, err)
-}
-
-func (suite *consulRegistryTestSuite) testUnregister() {
-	consulProviderRegistry, _ := suite.providerRegistry.(*consulRegistry)
-	err := consulProviderRegistry.UnRegister(suite.providerUrl)
-	assert.NoError(suite.t, err)
-}
-
-func (suite *consulRegistryTestSuite) testSubscribe() {
-	consumerUrl := newConsumerUrl(consumerHost, consumerPort, service, protocol)
-	suite.consumerUrl = consumerUrl
-	listener, err := suite.consumerRegistry.getListener(consumerUrl)
-	assert.NoError(suite.t, err)
-	suite.listener = listener
-}
-
-func (suite *consulRegistryTestSuite) testDestroy() {
-	consumerRegistryUrl := newConsumerRegistryUrl(registryHost, registryPort)
-	consumerRegistry, _ := newConsulRegistry(consumerRegistryUrl)
-	consulRegistryImp := consumerRegistry.(*consulRegistry)
-	assert.True(suite.t, consulRegistryImp.IsAvailable())
-	consulRegistryImp.Destroy()
-	assert.False(suite.t, consulRegistryImp.IsAvailable())
-
-	consumerRegistry, _ = newConsulRegistry(consumerRegistryUrl)
-	consulRegistryImp = consumerRegistry.(*consulRegistry)
-	consulRegistryImp.URL = nil
-	assert.True(suite.t, consulRegistryImp.IsAvailable())
-	consulRegistryImp.Destroy()
-	assert.False(suite.t, consulRegistryImp.IsAvailable())
-}
diff --git a/registry/consul/service_discovery.go b/registry/consul/service_discovery.go
deleted file mode 100644
index 7082cab..0000000
--- a/registry/consul/service_discovery.go
+++ /dev/null
@@ -1,495 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"encoding/base64"
-	"fmt"
-	"strconv"
-	"sync"
-	"time"
-)
-
-import (
-	"github.com/dubbogo/gost/container/set"
-	"github.com/dubbogo/gost/hash/page"
-
-	consul "github.com/hashicorp/consul/api"
-	"github.com/hashicorp/consul/api/watch"
-
-	perrors "github.com/pkg/errors"
-)
-
-import (
-	"github.com/apache/dubbo-go/common/constant"
-	"github.com/apache/dubbo-go/common/extension"
-	"github.com/apache/dubbo-go/common/logger"
-	"github.com/apache/dubbo-go/config"
-	"github.com/apache/dubbo-go/registry"
-)
-
-const (
-	enable                 = "enable"
-	watch_type             = "type"
-	watch_type_service     = "service"
-	watch_service          = "service"
-	watch_passingonly      = "passingonly"
-	watch_passingonly_true = true
-)
-
-var (
-	errConsulClientClosed = perrors.New("consul client is closed")
-)
-
-// init will put the service discovery into extension
-func init() {
-	extension.SetServiceDiscovery(constant.CONSUL_KEY, newConsulServiceDiscovery)
-}
-
-// consulServiceDiscovery is the implementation of service discovery based on consul.
-type consulServiceDiscovery struct {
-	// descriptor is a short string about the basic information of this instance
-	descriptor string
-	clientLock sync.RWMutex
-	// Consul client.
-	consulClient                   *consul.Client
-	checkPassInterval              int64
-	tag                            string
-	address                        string
-	deregisterCriticalServiceAfter string
-	ttl                            sync.Map
-	*consul.Config
-}
-
-// newConsulServiceDiscovery will create new service discovery instance
-// use double-check pattern to reduce race condition
-func newConsulServiceDiscovery(name string) (registry.ServiceDiscovery, error) {
-	sdc, ok := config.GetBaseConfig().GetServiceDiscoveries(name)
-	if !ok || len(sdc.RemoteRef) == 0 {
-		return nil, perrors.New("could not init the instance because the config is invalid")
-	}
-
-	remoteConfig, ok := config.GetBaseConfig().GetRemoteConfig(sdc.RemoteRef)
-	if !ok {
-		return nil, perrors.New("could not find the remote config for name: " + sdc.RemoteRef)
-	}
-
-	descriptor := fmt.Sprintf("consul-service-discovery[%s]", remoteConfig.Address)
-
-	config := &consul.Config{Address: remoteConfig.Address, Token: remoteConfig.Params[constant.ACL_TOKEN]}
-	client, err := consul.NewClient(config)
-	if err != nil {
-		return nil, perrors.WithMessage(err, "create consul client failed.")
-	}
-
-	return &consulServiceDiscovery{
-		address:                        remoteConfig.Address,
-		descriptor:                     descriptor,
-		checkPassInterval:              getCheckPassInterval(remoteConfig.Params),
-		Config:                         config,
-		tag:                            remoteConfig.Params[constant.QUERY_TAG],
-		consulClient:                   client,
-		deregisterCriticalServiceAfter: getDeregisterAfter(remoteConfig.Params),
-		clientLock:                     sync.RWMutex{},
-	}, nil
-}
-
-func (csd *consulServiceDiscovery) String() string {
-	return csd.descriptor
-}
-
-// nolint
-func (csd *consulServiceDiscovery) getConsulClient() *consul.Client {
-	csd.clientLock.RLock()
-	defer csd.clientLock.RUnlock()
-	return csd.consulClient
-}
-
-// nolint
-func (csd *consulServiceDiscovery) setConsulClient(consulClient *consul.Client) {
-	csd.clientLock.Lock()
-	defer csd.clientLock.Unlock()
-	csd.consulClient = consulClient
-}
-
-func (csd *consulServiceDiscovery) Destroy() error {
-	csd.setConsulClient(nil)
-	csd.ttl.Range(func(key, t interface{}) bool {
-		close(t.(chan struct{}))
-		csd.ttl.Delete(key)
-		return true
-	})
-	return nil
-}
-
-func (csd *consulServiceDiscovery) Register(instance registry.ServiceInstance) error {
-	var (
-		err          error
-		consulClient *consul.Client
-	)
-	ins, _ := csd.buildRegisterInstance(instance)
-	if consulClient = csd.getConsulClient(); consulClient == nil {
-		return errConsulClientClosed
-	}
-	err = consulClient.Agent().ServiceRegister(ins)
-	if err != nil {
-		logger.Errorf("consul register the instance %s fail:%v", instance.GetServiceName(), err)
-		return perrors.WithMessage(err, "consul could not register the instance. "+instance.GetServiceName())
-	}
-
-	return csd.registerTtl(instance)
-}
-
-func (csd *consulServiceDiscovery) registerTtl(instance registry.ServiceInstance) error {
-	var (
-		err          error
-		consulClient *consul.Client
-	)
-
-	checkID := buildID(instance)
-
-	stopChan := make(chan struct{})
-	csd.ttl.LoadOrStore(buildID(instance), stopChan)
-
-	period := time.Duration(csd.checkPassInterval/8) * time.Millisecond
-	timer := time.NewTicker(period)
-	go func() {
-		defer timer.Stop()
-		for {
-			select {
-			case <-timer.C:
-				if consulClient = csd.getConsulClient(); consulClient == nil {
-					logger.Debugf("consul client is closed!")
-					return
-				}
-				err = consulClient.Agent().PassTTL(fmt.Sprintf("service:%s", checkID), "")
-				if err != nil {
-					logger.Warnf("pass ttl heartbeat fail:%v", err)
-					break
-				}
-				logger.Debugf("passed ttl heartbeat for %s", checkID)
-				break
-			case <-stopChan:
-				logger.Info("ttl %s for service %s is stopped", checkID, instance.GetServiceName())
-				return
-			}
-		}
-	}()
-	return nil
-}
-
-func (csd *consulServiceDiscovery) Update(instance registry.ServiceInstance) error {
-	var (
-		err          error
-		consulClient *consul.Client
-	)
-	ins, _ := csd.buildRegisterInstance(instance)
-	consulClient = csd.getConsulClient()
-	if consulClient == nil {
-		return errConsulClientClosed
-	}
-	err = consulClient.Agent().ServiceDeregister(buildID(instance))
-	if err != nil {
-		logger.Warnf("unregister instance %s fail:%v", instance.GetServiceName(), err)
-	}
-	return consulClient.Agent().ServiceRegister(ins)
-}
-
-func (csd *consulServiceDiscovery) Unregister(instance registry.ServiceInstance) error {
-	var (
-		err          error
-		consulClient *consul.Client
-	)
-	if consulClient = csd.getConsulClient(); consulClient == nil {
-		return errConsulClientClosed
-	}
-	err = consulClient.Agent().ServiceDeregister(buildID(instance))
-	if err != nil {
-		logger.Errorf("unregister service instance %s,error: %v", instance.GetId(), err)
-		return err
-	}
-	stopChanel, ok := csd.ttl.Load(buildID(instance))
-	if !ok {
-		logger.Warnf("ttl for service instance %s didn't exist", instance.GetId())
-		return nil
-	}
-	close(stopChanel.(chan struct{}))
-	csd.ttl.Delete(buildID(instance))
-	return nil
-}
-
-func (csd *consulServiceDiscovery) GetDefaultPageSize() int {
-	return registry.DefaultPageSize
-}
-
-func (csd *consulServiceDiscovery) GetServices() *gxset.HashSet {
-	var (
-		err          error
-		consulClient *consul.Client
-		services     map[string][]string
-	)
-	var res = gxset.NewSet()
-	if consulClient = csd.getConsulClient(); consulClient == nil {
-		logger.Warnf("consul client is closed!")
-		return res
-	}
-	services, _, err = consulClient.Catalog().Services(nil)
-	if err != nil {
-		logger.Errorf("get services,error: %v", err)
-		return res
-	}
-
-	for service := range services {
-		res.Add(service)
-	}
-	return res
-
-}
-
-// encodeConsulMetadata because consul validate key strictly.
-func encodeConsulMetadata(metadata map[string]string) map[string]string {
-	consulMetadata := make(map[string]string, len(metadata))
-	encoder := base64.RawStdEncoding
-	for k, v := range metadata {
-		consulMetadata[encoder.EncodeToString([]byte(k))] = v
-	}
-	return consulMetadata
-}
-
-// nolint
-func decodeConsulMetadata(metadata map[string]string) map[string]string {
-	dubboMetadata := make(map[string]string, len(metadata))
-	encoder := base64.RawStdEncoding
-	for k, v := range metadata {
-		kBytes, err := encoder.DecodeString(k)
-		if err != nil {
-			logger.Warnf("can not decoded consul metadata key %s", k)
-			continue
-		}
-		dubboMetadata[string(kBytes)] = v
-	}
-	return dubboMetadata
-}
-
-func (csd *consulServiceDiscovery) GetInstances(serviceName string) []registry.ServiceInstance {
-	var (
-		err          error
-		consulClient *consul.Client
-		instances    []*consul.ServiceEntry
-	)
-	if consulClient = csd.getConsulClient(); consulClient == nil {
-		logger.Warn("consul client is closed!")
-		return nil
-	}
-	instances, _, err = consulClient.Health().Service(serviceName, csd.tag, true, &consul.QueryOptions{
-		WaitTime: time.Duration(csd.checkPassInterval),
-	})
-
-	if err != nil {
-		logger.Errorf("get instances for service %s,error: %v", serviceName, err)
-		return nil
-	}
-
-	res := make([]registry.ServiceInstance, 0, len(instances))
-	for _, ins := range instances {
-		metadata := ins.Service.Meta
-
-		// enable status
-		enableStr := metadata[enable]
-		delete(metadata, enable)
-		enable, _ := strconv.ParseBool(enableStr)
-		metadata = decodeConsulMetadata(metadata)
-
-		// health status
-		status := ins.Checks.AggregatedStatus()
-		healthy := false
-		if status == consul.HealthPassing {
-			healthy = true
-		}
-		res = append(res, &registry.DefaultServiceInstance{
-			Id:          ins.Service.ID,
-			ServiceName: ins.Service.Service,
-			Host:        ins.Service.Address,
-			Port:        ins.Service.Port,
-			Enable:      enable,
-			Healthy:     healthy,
-			Metadata:    metadata,
-		})
-	}
-
-	return res
-}
-
-func (csd *consulServiceDiscovery) GetInstancesByPage(serviceName string, offset int, pageSize int) gxpage.Pager {
-	all := csd.GetInstances(serviceName)
-	res := make([]interface{}, 0, pageSize)
-	for i := offset; i < len(all) && i < offset+pageSize; i++ {
-		res = append(res, all[i])
-	}
-	return gxpage.NewPage(offset, pageSize, res, len(all))
-}
-
-func (csd *consulServiceDiscovery) GetHealthyInstancesByPage(serviceName string, offset int, pageSize int, healthy bool) gxpage.Pager {
-	all := csd.GetInstances(serviceName)
-	res := make([]interface{}, 0, pageSize)
-	// could not use res = all[a:b] here because the res should be []interface{}, not []ServiceInstance
-	var (
-		i     = offset
-		count = 0
-	)
-	for i < len(all) && count < pageSize {
-		ins := all[i]
-		if ins.IsHealthy() == healthy {
-			res = append(res, all[i])
-			count++
-		}
-		i++
-	}
-	return gxpage.NewPage(offset, pageSize, res, len(all))
-}
-
-func (csd *consulServiceDiscovery) GetRequestInstances(serviceNames []string, offset int, requestedSize int) map[string]gxpage.Pager {
-	res := make(map[string]gxpage.Pager, len(serviceNames))
-	for _, name := range serviceNames {
-		res[name] = csd.GetInstancesByPage(name, offset, requestedSize)
-	}
-	return res
-}
-
-func (csd *consulServiceDiscovery) AddListener(listener *registry.ServiceInstancesChangedListener) error {
-
-	params := make(map[string]interface{}, 8)
-	params[watch_type] = watch_type_service
-	params[watch_service] = listener.ServiceName
-	params[watch_passingonly] = watch_passingonly_true
-	plan, err := watch.Parse(params)
-	if err != nil {
-		logger.Errorf("add listener for service %s,error:%v", listener.ServiceName, err)
-		return err
-	}
-
-	plan.Handler = func(idx uint64, raw interface{}) {
-		services, ok := raw.([]*consul.ServiceEntry)
-		if !ok {
-			err = perrors.New("handler get non ServiceEntry type parameter")
-			return
-		}
-		instances := make([]registry.ServiceInstance, 0, len(services))
-		for _, ins := range services {
-			metadata := ins.Service.Meta
-
-			// enable status
-			enableStr := metadata[enable]
-			delete(metadata, enable)
-			enable, _ := strconv.ParseBool(enableStr)
-
-			// health status
-			status := ins.Checks.AggregatedStatus()
-			healthy := false
-			if status == consul.HealthPassing {
-				healthy = true
-			}
-			instances = append(instances, &registry.DefaultServiceInstance{
-				Id:          ins.Service.ID,
-				ServiceName: ins.Service.Service,
-				Host:        ins.Service.Address,
-				Port:        ins.Service.Port,
-				Enable:      enable,
-				Healthy:     healthy,
-				Metadata:    metadata,
-			})
-		}
-		e := csd.DispatchEventForInstances(listener.ServiceName, instances)
-		if e != nil {
-			logger.Errorf("Dispatching event got exception, service name: %s, err: %v", listener.ServiceName, err)
-		}
-	}
-	go func() {
-		err = plan.RunWithConfig(csd.Config.Address, csd.Config)
-		if err != nil {
-			logger.Error("consul plan run failure!error:%v", err)
-		}
-	}()
-	return nil
-}
-
-func (csd *consulServiceDiscovery) DispatchEventByServiceName(serviceName string) error {
-	return csd.DispatchEventForInstances(serviceName, csd.GetInstances(serviceName))
-}
-
-func (csd *consulServiceDiscovery) DispatchEventForInstances(serviceName string, instances []registry.ServiceInstance) error {
-	return csd.DispatchEvent(registry.NewServiceInstancesChangedEvent(serviceName, instances))
-}
-
-func (csd *consulServiceDiscovery) DispatchEvent(event *registry.ServiceInstancesChangedEvent) error {
-	extension.GetGlobalDispatcher().Dispatch(event)
-	return nil
-}
-
-func (csd *consulServiceDiscovery) buildRegisterInstance(instance registry.ServiceInstance) (*consul.AgentServiceRegistration, error) {
-	metadata := instance.GetMetadata()
-	metadata = encodeConsulMetadata(metadata)
-	metadata[enable] = strconv.FormatBool(instance.IsEnable())
-	// check
-	check := csd.buildCheck()
-
-	return &consul.AgentServiceRegistration{
-		ID:      buildID(instance),
-		Name:    instance.GetServiceName(),
-		Port:    instance.GetPort(),
-		Address: instance.GetHost(),
-		Meta:    metadata,
-		Check:   &check,
-	}, nil
-}
-
-func (csd *consulServiceDiscovery) buildCheck() consul.AgentServiceCheck {
-	return consul.AgentServiceCheck{
-		TTL:                            strconv.FormatInt(csd.checkPassInterval/1000, 10) + "s",
-		DeregisterCriticalServiceAfter: csd.deregisterCriticalServiceAfter,
-	}
-}
-
-// nolint
-func getCheckPassInterval(params map[string]string) int64 {
-	checkPassIntervalStr, ok := params[constant.CHECK_PASS_INTERVAL]
-	if !ok {
-		return constant.DEFAULT_CHECK_PASS_INTERVAL
-	}
-	checkPassInterval, err := strconv.ParseInt(checkPassIntervalStr, 10, 64)
-	if err != nil {
-		logger.Warnf("consul service discovery remote config error:%s", checkPassIntervalStr)
-		return constant.DEFAULT_CHECK_PASS_INTERVAL
-	}
-	return checkPassInterval
-}
-
-// nolint
-func getDeregisterAfter(metadata map[string]string) string {
-	deregister, ok := metadata[constant.DEREGISTER_AFTER]
-	if !ok || len(deregister) == 0 {
-		deregister = constant.DEFAULT_DEREGISTER_TIME
-	}
-	return deregister
-}
-
-// nolint
-func buildID(instance registry.ServiceInstance) string {
-	id := fmt.Sprintf("id:%s,serviceName:%s,host:%s,port:%d", instance.GetId(), instance.GetServiceName(), instance.GetHost(), instance.GetPort())
-	return id
-}
diff --git a/registry/consul/service_discovery_test.go b/registry/consul/service_discovery_test.go
deleted file mode 100644
index 3f97d84..0000000
--- a/registry/consul/service_discovery_test.go
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"fmt"
-	"math/rand"
-	"strconv"
-	"testing"
-	"time"
-)
-
-import (
-	"github.com/stretchr/testify/assert"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/constant"
-	"github.com/apache/dubbo-go/common/extension"
-	"github.com/apache/dubbo-go/common/observer"
-	"github.com/apache/dubbo-go/config"
-	"github.com/apache/dubbo-go/registry"
-	"github.com/apache/dubbo-go/remoting/consul"
-)
-
-var (
-	testName                             = "test"
-	consulCheckPassInterval              = 17000
-	consulDeregisterCriticalServiceAfter = "20s"
-	consulWatchTimeout                   = 60000
-)
-
-func TestConsulServiceDiscovery_newConsulServiceDiscovery(t *testing.T) {
-	name := "consul1"
-	_, err := newConsulServiceDiscovery(name)
-	assert.NotNil(t, err)
-
-	sdc := &config.ServiceDiscoveryConfig{
-		Protocol:  "consul",
-		RemoteRef: "mock",
-	}
-
-	config.GetBaseConfig().ServiceDiscoveries[name] = sdc
-
-	_, err = newConsulServiceDiscovery(name)
-	assert.NotNil(t, err)
-
-	config.GetBaseConfig().Remotes["mock"] = &config.RemoteConfig{
-		Address: "localhost:8081",
-	}
-
-	res, err := newConsulServiceDiscovery(name)
-	assert.Nil(t, err)
-	assert.NotNil(t, res)
-}
-
-func TestConsulServiceDiscovery_Destroy(t *testing.T) {
-	prepareData()
-	serviceDiscovery, err := extension.GetServiceDiscovery(constant.CONSUL_KEY, testName)
-	prepareService()
-	assert.Nil(t, err)
-	assert.NotNil(t, serviceDiscovery)
-	err = serviceDiscovery.Destroy()
-	assert.Nil(t, err)
-	assert.Nil(t, serviceDiscovery.(*consulServiceDiscovery).consulClient)
-}
-
-func TestConsulServiceDiscovery_CRUD(t *testing.T) {
-	// start consul agent
-	consulAgent := consul.NewConsulAgent(t, registryPort)
-	defer func() {
-		err := consulAgent.Shutdown()
-		assert.NoError(t, err)
-	}()
-
-	prepareData()
-	var eventDispatcher = MockEventDispatcher{Notify: make(chan struct{}, 1)}
-	extension.SetEventDispatcher("mock", func() observer.EventDispatcher {
-		return &eventDispatcher
-	})
-
-	extension.SetAndInitGlobalDispatcher("mock")
-	rand.Seed(time.Now().Unix())
-
-	instance, _ := prepareService()
-
-	// clean data
-	serviceDiscovery, err := extension.GetServiceDiscovery(constant.CONSUL_KEY, testName)
-	assert.Nil(t, err)
-
-	err = serviceDiscovery.Unregister(instance)
-	assert.Nil(t, err)
-
-	err = serviceDiscovery.Register(instance)
-	assert.Nil(t, err)
-
-	//sometimes nacos may be failed to push update of instance,
-	//so it need 10s to pull, we sleep 10 second to make sure instance has been update
-	time.Sleep(3 * time.Second)
-	page := serviceDiscovery.GetHealthyInstancesByPage(instance.GetServiceName(), 0, 10, true)
-	assert.NotNil(t, page)
-	assert.Equal(t, 0, page.GetOffset())
-	assert.Equal(t, 10, page.GetPageSize())
-	assert.Equal(t, 1, page.GetDataSize())
-
-	instanceResult := page.GetData()[0].(*registry.DefaultServiceInstance)
-	assert.NotNil(t, instanceResult)
-	assert.Equal(t, buildID(instance), instanceResult.GetId())
-	assert.Equal(t, instance.GetHost(), instanceResult.GetHost())
-	assert.Equal(t, instance.GetPort(), instanceResult.GetPort())
-	assert.Equal(t, instance.GetServiceName(), instanceResult.GetServiceName())
-	metadata := instanceResult.GetMetadata()
-	assert.Equal(t, 0, len(metadata))
-
-	instance.GetMetadata()["aaa"] = "bbb"
-	err = serviceDiscovery.Update(instance)
-	assert.Nil(t, err)
-
-	time.Sleep(3 * time.Second)
-	pageMap := serviceDiscovery.GetRequestInstances([]string{instance.GetServiceName()}, 0, 1)
-	assert.Equal(t, 1, len(pageMap))
-
-	page = pageMap[instance.GetServiceName()]
-	assert.NotNil(t, page)
-	assert.Equal(t, 1, len(page.GetData()))
-
-	instanceResult = page.GetData()[0].(*registry.DefaultServiceInstance)
-	v, ok := instanceResult.Metadata["aaa"]
-	assert.True(t, ok)
-	assert.Equal(t, "bbb", v)
-
-	// test dispatcher event
-	//err = serviceDiscovery.DispatchEventByServiceName(instanceResult.GetServiceName())
-	//assert.Nil(t, err)
-
-	// test AddListener
-	err = serviceDiscovery.AddListener(&registry.ServiceInstancesChangedListener{ServiceName: instance.GetServiceName()})
-	assert.Nil(t, err)
-	err = serviceDiscovery.Unregister(instance)
-	assert.Nil(t, err)
-	timer := time.NewTimer(time.Second * 10)
-	select {
-	case <-eventDispatcher.Notify:
-		assert.NotNil(t, eventDispatcher.Event)
-		break
-	case <-timer.C:
-		assert.Fail(t, "")
-		break
-	}
-}
-
-func prepareData() {
-	config.GetBaseConfig().ServiceDiscoveries[testName] = &config.ServiceDiscoveryConfig{
-		Protocol:  "consul",
-		RemoteRef: testName,
-	}
-
-	config.GetBaseConfig().Remotes[testName] = &config.RemoteConfig{
-		Address: fmt.Sprintf("%s:%d", registryHost, registryPort),
-	}
-}
-
-func prepareService() (registry.ServiceInstance, *common.URL) {
-	id := "id"
-
-	registryUrl, _ := common.NewURL(protocol + "://" + providerHost + ":" + strconv.Itoa(providerPort) + "/" + service + "?anyhost=true&" +
-		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
-		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
-		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
-		"side=provider&timeout=3000&timestamp=1556509797245&consul-check-pass-interval=" + strconv.Itoa(consulCheckPassInterval) + "&consul-deregister-critical-service-after=" + consulDeregisterCriticalServiceAfter + "&" +
-		"consul-watch-timeout=" + strconv.Itoa(consulWatchTimeout))
-
-	return &registry.DefaultServiceInstance{
-		Id:          id,
-		ServiceName: service,
-		Host:        registryHost,
-		Port:        registryPort,
-		Enable:      true,
-		Healthy:     true,
-		Metadata:    nil,
-	}, registryUrl
-}
-
-type MockEventDispatcher struct {
-	Notify chan struct{}
-	Event  observer.Event
-}
-
-// AddEventListener do nothing
-func (m *MockEventDispatcher) AddEventListener(observer.EventListener) {
-}
-
-// AddEventListeners do nothing
-func (m *MockEventDispatcher) AddEventListeners([]observer.EventListener) {
-}
-
-// RemoveEventListener do nothing
-func (m *MockEventDispatcher) RemoveEventListener(observer.EventListener) {
-}
-
-// RemoveEventListeners do nothing
-func (m *MockEventDispatcher) RemoveEventListeners([]observer.EventListener) {
-}
-
-// GetAllEventListeners return empty list
-func (m *MockEventDispatcher) GetAllEventListeners() []observer.EventListener {
-	return make([]observer.EventListener, 0)
-}
-
-// RemoveAllEventListeners do nothing
-func (m *MockEventDispatcher) RemoveAllEventListeners() {
-}
-
-// Dispatch do nothing
-func (m *MockEventDispatcher) Dispatch(event observer.Event) {
-	m.Event = event
-	m.Notify <- struct{}{}
-}
diff --git a/registry/consul/utils.go b/registry/consul/utils.go
deleted file mode 100644
index 561516b..0000000
--- a/registry/consul/utils.go
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"crypto/md5"
-	"encoding/hex"
-	"fmt"
-	"strconv"
-)
-
-import (
-	consul "github.com/hashicorp/consul/api"
-
-	perrors "github.com/pkg/errors"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-)
-
-func buildId(url *common.URL) string {
-	t := md5.Sum([]byte(url.String()))
-	return hex.EncodeToString(t[:])
-}
-
-func buildService(url *common.URL) (*consul.AgentServiceRegistration, error) {
-	var err error
-
-	// id
-	id := buildId(url)
-
-	// address
-	if url.Ip == "" {
-		url.Ip = common.GetLocalIp()
-	}
-
-	// port
-	port, err := strconv.Atoi(url.Port)
-	if err != nil {
-		return nil, err
-	}
-
-	// tcp
-	tcp := fmt.Sprintf("%s:%d", url.Ip, port)
-
-	// tags
-	tags := make([]string, 0, 8)
-
-	url.RangeParams(func(key, value string) bool {
-		tags = append(tags, key+"="+value)
-		return true
-	})
-
-	tags = append(tags, "dubbo")
-
-	// meta
-	meta := make(map[string]string, 8)
-	meta["url"] = url.String()
-
-	// check
-	check := &consul.AgentServiceCheck{
-		TCP:                            tcp,
-		Interval:                       url.GetParam("consul-check-interval", "10s"),
-		Timeout:                        url.GetParam("consul-check-timeout", "1s"),
-		DeregisterCriticalServiceAfter: url.GetParam("consul-deregister-critical-service-after", "20s"),
-	}
-
-	service := &consul.AgentServiceRegistration{
-		Name:    url.Service(),
-		ID:      id,
-		Address: url.Ip,
-		Port:    port,
-		Tags:    tags,
-		Meta:    meta,
-		Check:   check,
-	}
-
-	return service, nil
-}
-
-func retrieveURL(service *consul.ServiceEntry) (*common.URL, error) {
-	url, ok := service.Service.Meta["url"]
-	if !ok {
-		return nil, perrors.New("retrieve url fails with no url key in service meta")
-	}
-	url1, err := common.NewURL(url)
-	if err != nil {
-		return nil, perrors.WithStack(err)
-	}
-	return url1, nil
-}
-
-func in(url *common.URL, urls []*common.URL) bool {
-	for _, url1 := range urls {
-		if common.IsEquals(url, url1) {
-			return true
-		}
-	}
-	return false
-}
diff --git a/registry/consul/utils_test.go b/registry/consul/utils_test.go
deleted file mode 100644
index 7b81630..0000000
--- a/registry/consul/utils_test.go
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"fmt"
-	"net"
-	"net/url"
-	"strconv"
-	"sync"
-	"testing"
-)
-
-import (
-	"github.com/stretchr/testify/assert"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/constant"
-	"github.com/apache/dubbo-go/common/logger"
-	"github.com/apache/dubbo-go/registry"
-	"github.com/apache/dubbo-go/remoting"
-	"github.com/apache/dubbo-go/remoting/consul"
-)
-
-var (
-	registryHost = "localhost"
-	registryPort = 8500
-	providerHost = "localhost"
-	providerPort = 8000
-	consumerHost = "localhost"
-	consumerPort = 8001
-	service      = "HelloWorld"
-	protocol     = "tcp"
-)
-
-func newProviderRegistryUrl(host string, port int) *common.URL {
-	return common.NewURLWithOptions(
-		common.WithIp(host),
-		common.WithPort(strconv.Itoa(port)),
-		common.WithParams(url.Values{}),
-		common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)),
-	)
-}
-
-func newConsumerRegistryUrl(host string, port int) *common.URL {
-	return common.NewURLWithOptions(
-		common.WithIp(host),
-		common.WithPort(strconv.Itoa(port)),
-		common.WithParams(url.Values{}),
-		common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER)),
-	)
-}
-
-func newProviderUrl(host string, port int, service string, protocol string) *common.URL {
-	return common.NewURLWithOptions(
-		common.WithIp(host),
-		common.WithPort(strconv.Itoa(port)),
-		common.WithPath(service),
-		common.WithProtocol(protocol),
-	)
-}
-
-func newConsumerUrl(host string, port int, service string, protocol string) *common.URL {
-	return common.NewURLWithOptions(
-		common.WithIp(host),
-		common.WithPort(strconv.Itoa(port)),
-		common.WithPath(service),
-		common.WithProtocol(protocol),
-	)
-}
-
-type testServer struct {
-	listener net.Listener
-	wg       sync.WaitGroup
-	done     chan struct{}
-}
-
-func newServer(host string, port int) *testServer {
-	addr := fmt.Sprintf("%s:%d", host, port)
-	tcpAddr, _ := net.ResolveTCPAddr("tcp", addr)
-	listener, _ := net.ListenTCP("tcp", tcpAddr)
-
-	server := &testServer{
-		listener: listener,
-		done:     make(chan struct{}),
-	}
-
-	server.wg.Add(1)
-	go server.serve()
-	return server
-}
-
-func (server *testServer) serve() {
-	defer server.wg.Done()
-	for {
-		select {
-		case <-server.done:
-			return
-		default:
-			conn, err := server.listener.Accept()
-			if err != nil {
-				continue
-			}
-			_, err = conn.Write([]byte("Hello World"))
-			if err != nil {
-				logger.Warnf("conn.Write() = error: %v", err)
-			}
-			err = conn.Close()
-			if err != nil {
-				logger.Warnf("conn.Close() = error: %v", err)
-			}
-		}
-	}
-}
-
-func (server *testServer) close() {
-	close(server.done)
-	if err := server.listener.Close(); err != nil {
-		fmt.Printf("server.listener.Close() = error:%v\n", err)
-	}
-
-	server.wg.Wait()
-}
-
-type consulRegistryTestSuite struct {
-	t                *testing.T
-	providerRegistry registry.Registry
-	consumerRegistry *consulRegistry
-	listener         registry.Listener
-	providerUrl      *common.URL
-	consumerUrl      *common.URL
-}
-
-func newConsulRegistryTestSuite(t *testing.T) *consulRegistryTestSuite {
-	suite := &consulRegistryTestSuite{t: t}
-	return suite
-}
-
-func (suite *consulRegistryTestSuite) close() {
-	suite.listener.Close()
-	suite.providerRegistry.Destroy()
-	suite.consumerRegistry.Destroy()
-}
-
-// register -> subscribe -> unregister
-func test1(t *testing.T) {
-	consulAgent := consul.NewConsulAgent(t, registryPort)
-	defer func() {
-		err := consulAgent.Shutdown()
-		assert.NoError(t, err)
-	}()
-
-	server := newServer(providerHost, providerPort)
-	defer server.close()
-
-	suite := newConsulRegistryTestSuite(t)
-	defer suite.close()
-
-	suite.testNewProviderRegistry()
-	suite.testRegister()
-	suite.testNewConsumerRegistry()
-	suite.testSubscribe()
-	suite.testListener(remoting.EventTypeAdd)
-	suite.testUnregister()
-	suite.testListener(remoting.EventTypeDel)
-	suite.testDestroy()
-}
-
-// subscribe -> register -> unregister
-func test2(t *testing.T) {
-	consulAgent := consul.NewConsulAgent(t, registryPort)
-	defer func() {
-		err := consulAgent.Shutdown()
-		assert.NoError(t, err)
-	}()
-
-	server := newServer(providerHost, providerPort)
-	defer server.close()
-
-	suite := newConsulRegistryTestSuite(t)
-	defer suite.close()
-
-	suite.testNewConsumerRegistry()
-	suite.testSubscribe()
-	suite.testNewProviderRegistry()
-	suite.testRegister()
-	suite.testListener(remoting.EventTypeAdd)
-	suite.testUnregister()
-	suite.testListener(remoting.EventTypeDel)
-	suite.testDestroy()
-}
-
-func TestConsulRegistry(t *testing.T) {
-	t.Run("test1", test1)
-	t.Run("test2", test2)
-}
diff --git a/registry/etcdv3/listener_test.go b/registry/etcdv3/listener_test.go
deleted file mode 100644
index 97244c1..0000000
--- a/registry/etcdv3/listener_test.go
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package etcdv3
-
-import (
-	"os"
-	"testing"
-	"time"
-)
-
-import (
-	"github.com/coreos/etcd/embed"
-
-	gxtime "github.com/dubbogo/gost/time"
-
-	"github.com/stretchr/testify/suite"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/config_center"
-	"github.com/apache/dubbo-go/remoting"
-)
-
-type RegistryTestSuite struct {
-	suite.Suite
-	etcd *embed.Etcd
-}
-
-const defaultEtcdV3WorkDir = "/tmp/default-dubbo-go-registry.etcd"
-
-// start etcd server
-func (suite *RegistryTestSuite) SetupSuite() {
-
-	t := suite.T()
-
-	cfg := embed.NewConfig()
-	// avoid conflict with default etcd work-dir
-	cfg.Dir = defaultEtcdV3WorkDir
-	e, err := embed.StartEtcd(cfg)
-	if err != nil {
-		t.Fatal(err)
-	}
-	select {
-	case <-e.Server.ReadyNotify():
-		t.Log("Server is ready!")
-	case <-gxtime.After(60 * time.Second):
-		e.Server.Stop() // trigger a shutdown
-		t.Logf("Server took too long to start!")
-	}
-
-	suite.etcd = e
-}
-
-// stop etcd server
-func (suite *RegistryTestSuite) TearDownSuite() {
-	suite.etcd.Close()
-	// clean the etcd workdir
-	if err := os.RemoveAll(defaultEtcdV3WorkDir); err != nil {
-		suite.FailNow(err.Error())
-	}
-}
-
-func (suite *RegistryTestSuite) TestDataChange() {
-
-	t := suite.T()
-
-	listener := NewRegistryDataListener(&MockDataListener{})
-	url, _ := common.NewURL("jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100")
-	listener.AddInterestedURL(url)
-	if !listener.DataChange(remoting.Event{Path: "/dubbo/com.ikurento.user.UserProvider/providers/jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100"}) {
-		t.Fatal("data change not ok")
-	}
-}
-
-func TestRegistrySuite(t *testing.T) {
-	suite.Run(t, &RegistryTestSuite{})
-}
-
-type MockDataListener struct{}
-
-func (*MockDataListener) Process(configType *config_center.ConfigChangeEvent) {}
diff --git a/registry/etcdv3/registry.go b/registry/etcdv3/registry.go
index 7ccf326..13b2cc5 100644
--- a/registry/etcdv3/registry.go
+++ b/registry/etcdv3/registry.go
@@ -22,10 +22,11 @@
 	"path"
 	"strings"
 	"sync"
-	"time"
 )
 
 import (
+	etcd "github.com/dubbogo/gost/database/kv/etcd/v3"
+
 	perrors "github.com/pkg/errors"
 )
 
@@ -50,7 +51,7 @@
 type etcdV3Registry struct {
 	registry.BaseRegistry
 	cltLock        sync.Mutex
-	client         *etcdv3.Client
+	client         *etcd.Client
 	listenerLock   sync.RWMutex
 	listener       *etcdv3.EventListener
 	dataListener   *dataListener
@@ -58,12 +59,12 @@
 }
 
 // Client gets the etcdv3 client
-func (r *etcdV3Registry) Client() *etcdv3.Client {
+func (r *etcdV3Registry) Client() *etcd.Client {
 	return r.client
 }
 
 // SetClient sets the etcdv3 client
-func (r *etcdV3Registry) SetClient(client *etcdv3.Client) {
+func (r *etcdV3Registry) SetClient(client *etcd.Client) {
 	r.client = client
 }
 
@@ -73,13 +74,7 @@
 }
 
 func newETCDV3Registry(url *common.URL) (registry.Registry, error) {
-
-	timeout, err := time.ParseDuration(url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT))
-	if err != nil {
-		logger.Errorf("timeout config %v is invalid ,err is %v",
-			url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT), err.Error())
-		return nil, perrors.WithMessagef(err, "new etcd registry(address:%+v)", url.Location)
-	}
+	timeout := url.GetParamDuration(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT)
 
 	logger.Infof("etcd address is: %v, timeout is: %s", url.Location, timeout.String())
 
@@ -89,9 +84,9 @@
 
 	if err := etcdv3.ValidateClient(
 		r,
-		etcdv3.WithName(etcdv3.RegistryETCDV3Client),
-		etcdv3.WithTimeout(timeout),
-		etcdv3.WithEndpoints(strings.Split(url.Location, ",")...),
+		etcd.WithName(etcd.RegistryETCDV3Client),
+		etcd.WithTimeout(timeout),
+		etcd.WithEndpoints(strings.Split(url.Location, ",")...),
 	); err != nil {
 		return nil, err
 	}
@@ -137,15 +132,7 @@
 
 // CreatePath create the path in the registry center of etcd
 func (r *etcdV3Registry) CreatePath(k string) error {
-	var tmpPath string
-	for _, str := range strings.Split(k, "/")[1:] {
-		tmpPath = path.Join(tmpPath, "/", str)
-		if err := r.client.Create(tmpPath, ""); err != nil {
-			return perrors.WithMessagef(err, "create path %s in etcd", tmpPath)
-		}
-	}
-
-	return nil
+	return perrors.WithMessagef(r.client.Put(k, ""), "create path %s in etcd", k)
 }
 
 // DoSubscribe actually subscribe the provider URL
diff --git a/registry/etcdv3/registry_test.go b/registry/etcdv3/registry_test.go
deleted file mode 100644
index d94eff6..0000000
--- a/registry/etcdv3/registry_test.go
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package etcdv3
-
-import (
-	"strconv"
-	"testing"
-	"time"
-)
-
-import (
-	"github.com/stretchr/testify/assert"
-)
-
-import (
-	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/constant"
-)
-
-func initRegistry(t *testing.T) *etcdV3Registry {
-
-	regurl, err := common.NewURL("registry://127.0.0.1:2379", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	reg, err := newETCDV3Registry(regurl)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	out := reg.(*etcdV3Registry)
-	err = out.client.CleanKV()
-	assert.NoError(t, err)
-	return out
-}
-
-func (suite *RegistryTestSuite) TestRegister() {
-
-	t := suite.T()
-
-	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
-
-	reg := initRegistry(t)
-	err := reg.Register(url)
-	assert.NoError(t, err)
-	children, _, err := reg.client.GetChildrenKVList("/dubbo/com.ikurento.user.UserProvider/providers")
-	if err != nil {
-		t.Fatal(err)
-	}
-	assert.Regexp(t, ".*dubbo%3A%2F%2F127.0.0.1%3A20000%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26cluster%3Dmock", children)
-	assert.NoError(t, err)
-}
-
-func (suite *RegistryTestSuite) TestSubscribe() {
-
-	t := suite.T()
-	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
-	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
-
-	reg := initRegistry(t)
-	//provider register
-	err := reg.Register(url)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	//consumer register
-	regurl.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
-	reg2 := initRegistry(t)
-
-	err = reg2.Register(url)
-	assert.NoError(t, err)
-	listener, err := reg2.DoSubscribe(url)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	serviceEvent, err := listener.Next()
-	if err != nil {
-		t.Fatal(err)
-	}
-	assert.Regexp(t, ".*ServiceEvent{Action{add}.*", serviceEvent.String())
-}
-
-func (suite *RegistryTestSuite) TestConsumerDestroy() {
-
-	t := suite.T()
-	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
-
-	reg := initRegistry(t)
-	_, err := reg.DoSubscribe(url)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	//listener.Close()
-	time.Sleep(1e9)
-	reg.Destroy()
-
-	assert.Equal(t, false, reg.IsAvailable())
-
-}
-
-func (suite *RegistryTestSuite) TestProviderDestroy() {
-
-	t := suite.T()
-	reg := initRegistry(t)
-	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
-	err := reg.Register(url)
-	assert.NoError(t, err)
-
-	//listener.Close()
-	time.Sleep(1e9)
-	reg.Destroy()
-	assert.Equal(t, false, reg.IsAvailable())
-}
diff --git a/registry/etcdv3/service_discovery.go b/registry/etcdv3/service_discovery.go
index 0597884..dd30b20 100644
--- a/registry/etcdv3/service_discovery.go
+++ b/registry/etcdv3/service_discovery.go
@@ -26,6 +26,7 @@
 
 import (
 	gxset "github.com/dubbogo/gost/container/set"
+	etcd "github.com/dubbogo/gost/database/kv/etcd/v3"
 	gxpage "github.com/dubbogo/gost/hash/page"
 
 	"github.com/hashicorp/vault/sdk/helper/jsonutil"
@@ -60,7 +61,7 @@
 	// descriptor is a short string about the basic information of this instance
 	descriptor string
 	// client is current Etcdv3 client
-	client *etcdv3.Client
+	client *etcd.Client
 	// serviceInstance is current serviceInstance
 	serviceInstance *registry.ServiceInstance
 	// services is when register or update will add service name
@@ -317,9 +318,9 @@
 	logger.Infof("etcd address is: %v,timeout is:%s", remoteConfig.Address, timeout.String())
 
 	client := etcdv3.NewServiceDiscoveryClient(
-		etcdv3.WithName(etcdv3.RegistryETCDV3Client),
-		etcdv3.WithTimeout(timeout),
-		etcdv3.WithEndpoints(strings.Split(remoteConfig.Address, ",")...),
+		etcd.WithName(etcd.RegistryETCDV3Client),
+		etcd.WithTimeout(timeout),
+		etcd.WithEndpoints(strings.Split(remoteConfig.Address, ",")...),
 	)
 
 	descriptor := fmt.Sprintf("etcd-service-discovery[%s]", remoteConfig.Address)
diff --git a/registry/protocol/protocol.go b/registry/protocol/protocol.go
index 6ef686f..b65040a 100644
--- a/registry/protocol/protocol.go
+++ b/registry/protocol/protocol.go
@@ -140,13 +140,7 @@
 		registryUrl.Protocol = registryUrl.GetParam(constant.REGISTRY_KEY, "")
 	}
 
-	var reg registry.Registry
-	if regI, loaded := proto.registries.Load(registryUrl.Key()); !loaded {
-		reg = getRegistry(registryUrl)
-		proto.registries.Store(registryUrl.Key(), reg)
-	} else {
-		reg = regI.(registry.Registry)
-	}
+	reg := proto.getRegistry(registryUrl)
 
 	// new registry directory for store service url from registry
 	directory, err := extension.GetDefaultRegistryDirectory(registryUrl, reg)
@@ -169,6 +163,17 @@
 	return invoker
 }
 
+func (proto *registryProtocol) getRegistry(registryUrl *common.URL) registry.Registry {
+	var reg registry.Registry
+	if regI, loaded := proto.registries.Load(registryUrl.Key()); !loaded {
+		reg = getRegistry(registryUrl)
+		proto.registries.Store(registryUrl.Key(), reg)
+	} else {
+		reg = regI.(registry.Registry)
+	}
+	return reg
+}
+
 // Export provider service to registry center
 func (proto *registryProtocol) Export(invoker protocol.Invoker) protocol.Exporter {
 	proto.once.Do(func() {
diff --git a/remoting/consul/test_agent.go b/remoting/consul/test_agent.go
deleted file mode 100644
index 2c5c13f..0000000
--- a/remoting/consul/test_agent.go
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
-
-import (
-	"strconv"
-	"testing"
-)
-
-import (
-	"github.com/hashicorp/consul/agent"
-)
-
-// Consul agent, used for test, simulates
-// an embedded consul server.
-func NewConsulAgent(t *testing.T, port int) *agent.TestAgent {
-	hcl := `
-		ports {
-			http = ` + strconv.Itoa(port) + `
-		}
-	`
-	return agent.NewTestAgent(t, hcl)
-}
diff --git a/remoting/consul/test_agent_test.go b/remoting/consul/test_agent_test.go
deleted file mode 100644
index d51c32c..0000000
--- a/remoting/consul/test_agent_test.go
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package consul
diff --git a/remoting/etcdv3/client.go b/remoting/etcdv3/client.go
index d692e19..be89740 100644
--- a/remoting/etcdv3/client.go
+++ b/remoting/etcdv3/client.go
@@ -18,18 +18,9 @@
 package etcdv3
 
 import (
-	"context"
-	"sync"
-	"time"
-)
-
-import (
-	"github.com/coreos/etcd/clientv3"
-	"github.com/coreos/etcd/clientv3/concurrency"
+	etcd "github.com/dubbogo/gost/database/kv/etcd/v3"
 
 	perrors "github.com/pkg/errors"
-
-	"google.golang.org/grpc"
 )
 
 import (
@@ -41,63 +32,12 @@
 	ConnDelay = 3
 	// MaxFailTimes max failure times
 	MaxFailTimes = 15
-	// RegistryETCDV3Client client name
-	RegistryETCDV3Client = "etcd registry"
-	// metadataETCDV3Client client name
-	MetadataETCDV3Client = "etcd metadata"
 )
 
-var (
-	// Defines related errors
-	ErrNilETCDV3Client = perrors.New("etcd raw client is nil") // full describe the ERR
-	ErrKVPairNotFound  = perrors.New("k/v pair not found")
-)
-
-// nolint
-type Options struct {
-	name      string
-	endpoints []string
-	client    *Client
-	timeout   time.Duration
-	heartbeat int // heartbeat second
-}
-
-// Option will define a function of handling Options
-type Option func(*Options)
-
-// WithEndpoints sets etcd client endpoints
-func WithEndpoints(endpoints ...string) Option {
-	return func(opt *Options) {
-		opt.endpoints = endpoints
-	}
-}
-
-// WithName sets etcd client name
-func WithName(name string) Option {
-	return func(opt *Options) {
-		opt.name = name
-	}
-}
-
-// WithTimeout sets etcd client timeout
-func WithTimeout(timeout time.Duration) Option {
-	return func(opt *Options) {
-		opt.timeout = timeout
-	}
-}
-
-// WithHeartbeat sets etcd client heartbeat
-func WithHeartbeat(heartbeat int) Option {
-	return func(opt *Options) {
-		opt.heartbeat = heartbeat
-	}
-}
-
 // ValidateClient validates client and sets options
-func ValidateClient(container clientFacade, opts ...Option) error {
-	options := &Options{
-		heartbeat: 1, // default heartbeat
-	}
+func ValidateClient(container clientFacade, opts ...etcd.Option) error {
+	options := &etcd.Options{}
+
 	for _, opt := range opts {
 		opt(options)
 	}
@@ -107,394 +47,30 @@
 	defer lock.Unlock()
 
 	// new Client
-	if container.Client() == nil {
-		newClient, err := NewClient(options.name, options.endpoints, options.timeout, options.heartbeat)
+	if container.Client() == nil || container.Client().GetRawClient() == nil {
+		newClient, err := etcd.NewClient(options.Name, options.Endpoints, options.Timeout, options.Heartbeat)
 		if err != nil {
 			logger.Warnf("new etcd client (name{%s}, etcd addresses{%v}, timeout{%d}) = error{%v}",
-				options.name, options.endpoints, options.timeout, err)
-			return perrors.WithMessagef(err, "new client (address:%+v)", options.endpoints)
+				options.Name, options.Endpoints, options.Timeout, err)
+			return perrors.WithMessagef(err, "new client (address:%+v)", options.Endpoints)
 		}
 		container.SetClient(newClient)
 	}
-
-	// Client lose connection with etcd server
-	if container.Client().rawClient == nil {
-		newClient, err := NewClient(options.name, options.endpoints, options.timeout, options.heartbeat)
-		if err != nil {
-			logger.Warnf("new etcd client (name{%s}, etcd addresses{%v}, timeout{%d}) = error{%v}",
-				options.name, options.endpoints, options.timeout, err)
-			return perrors.WithMessagef(err, "new client (address:%+v)", options.endpoints)
-		}
-		container.SetClient(newClient)
-	}
-
 	return nil
 }
 
-//  nolint
-func NewServiceDiscoveryClient(opts ...Option) *Client {
-	options := &Options{
-		heartbeat: 1, // default heartbeat
+func NewServiceDiscoveryClient(opts ...etcd.Option) *etcd.Client {
+	options := &etcd.Options{
+		Heartbeat: 1, // default heartbeat
 	}
 	for _, opt := range opts {
 		opt(options)
 	}
 
-	newClient, err := NewClient(options.name, options.endpoints, options.timeout, options.heartbeat)
+	client, err := etcd.NewClient(options.Name, options.Endpoints, options.Timeout, options.Heartbeat)
 	if err != nil {
 		logger.Errorf("new etcd client (name{%s}, etcd addresses{%v}, timeout{%d}) = error{%v}",
-			options.name, options.endpoints, options.timeout, err)
+			options.Name, options.Endpoints, options.Timeout, err)
 	}
-	return newClient
-}
-
-// Client represents etcd client Configuration
-type Client struct {
-	lock sync.RWMutex
-
-	// these properties are only set once when they are started.
-	name      string
-	endpoints []string
-	timeout   time.Duration
-	heartbeat int
-
-	ctx       context.Context    // if etcd server connection lose, the ctx.Done will be sent msg
-	cancel    context.CancelFunc // cancel the ctx, all watcher will stopped
-	rawClient *clientv3.Client
-
-	exit chan struct{}
-	Wait sync.WaitGroup
-}
-
-// nolint
-func NewClient(name string, endpoints []string, timeout time.Duration, heartbeat int) (*Client, error) {
-	ctx, cancel := context.WithCancel(context.Background())
-	rawClient, err := clientv3.New(clientv3.Config{
-		Context:     ctx,
-		Endpoints:   endpoints,
-		DialTimeout: timeout,
-		DialOptions: []grpc.DialOption{grpc.WithBlock()},
-	})
-	if err != nil {
-		cancel()
-		return nil, perrors.WithMessage(err, "new raw client block connect to server")
-	}
-
-	c := &Client{
-		name:      name,
-		timeout:   timeout,
-		endpoints: endpoints,
-		heartbeat: heartbeat,
-
-		ctx:       ctx,
-		cancel:    cancel,
-		rawClient: rawClient,
-
-		exit: make(chan struct{}),
-	}
-
-	if err := c.maintenanceStatus(); err != nil {
-		return nil, perrors.WithMessage(err, "client maintenance status")
-	}
-	return c, nil
-}
-
-// NOTICE: need to get the lock before calling this method
-func (c *Client) clean() {
-	// close raw client
-	c.rawClient.Close()
-
-	// cancel ctx for raw client
-	c.cancel()
-
-	// clean raw client
-	c.rawClient = nil
-}
-
-func (c *Client) stop() bool {
-	select {
-	case <-c.exit:
-		return true
-	default:
-		close(c.exit)
-	}
-	return false
-}
-
-// nolint
-func (c *Client) Close() {
-	if c == nil {
-		return
-	}
-
-	// stop the client
-	c.stop()
-
-	// wait client maintenance status stop
-	c.Wait.Wait()
-
-	c.lock.Lock()
-	defer c.lock.Unlock()
-	if c.rawClient != nil {
-		c.clean()
-	}
-	logger.Warnf("etcd client{name:%s, endpoints:%s} exit now.", c.name, c.endpoints)
-}
-
-func (c *Client) maintenanceStatus() error {
-	s, err := concurrency.NewSession(c.rawClient, concurrency.WithTTL(c.heartbeat))
-	if err != nil {
-		return perrors.WithMessage(err, "new session with server")
-	}
-
-	// must add wg before go maintenance status goroutine
-	c.Wait.Add(1)
-	go c.maintenanceStatusLoop(s)
-	return nil
-}
-
-func (c *Client) maintenanceStatusLoop(s *concurrency.Session) {
-	defer func() {
-		c.Wait.Done()
-		logger.Infof("etcd client {endpoints:%v, name:%s} maintenance goroutine game over.", c.endpoints, c.name)
-	}()
-
-	for {
-		select {
-		case <-c.Done():
-			// Client be stopped, will clean the client hold resources
-			return
-		case <-s.Done():
-			logger.Warn("etcd server stopped")
-			c.lock.Lock()
-			// when etcd server stopped, cancel ctx, stop all watchers
-			c.clean()
-			// when connection lose, stop client, trigger reconnect to etcd
-			c.stop()
-			c.lock.Unlock()
-			return
-		}
-	}
-}
-
-// if k not exist will put k/v in etcd, otherwise return nil
-func (c *Client) put(k string, v string, opts ...clientv3.OpOption) error {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return ErrNilETCDV3Client
-	}
-
-	_, err := c.rawClient.Txn(c.ctx).
-		If(clientv3.Compare(clientv3.Version(k), "<", 1)).
-		Then(clientv3.OpPut(k, v, opts...)).
-		Commit()
-	return err
-}
-
-// if k not exist will put k/v in etcd
-// if k is already exist in etcd, replace it
-func (c *Client) update(k string, v string, opts ...clientv3.OpOption) error {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return ErrNilETCDV3Client
-	}
-
-	_, err := c.rawClient.Txn(c.ctx).
-		If(clientv3.Compare(clientv3.Version(k), "!=", -1)).
-		Then(clientv3.OpPut(k, v, opts...)).
-		Commit()
-	return err
-}
-
-func (c *Client) delete(k string) error {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return ErrNilETCDV3Client
-	}
-
-	_, err := c.rawClient.Delete(c.ctx, k)
-	return err
-}
-
-func (c *Client) get(k string) (string, error) {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return "", ErrNilETCDV3Client
-	}
-
-	resp, err := c.rawClient.Get(c.ctx, k)
-	if err != nil {
-		return "", err
-	}
-
-	if len(resp.Kvs) == 0 {
-		return "", ErrKVPairNotFound
-	}
-
-	return string(resp.Kvs[0].Value), nil
-}
-
-// nolint
-func (c *Client) CleanKV() error {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return ErrNilETCDV3Client
-	}
-
-	_, err := c.rawClient.Delete(c.ctx, "", clientv3.WithPrefix())
-	return err
-}
-
-func (c *Client) getChildren(k string) ([]string, []string, error) {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return nil, nil, ErrNilETCDV3Client
-	}
-
-	resp, err := c.rawClient.Get(c.ctx, k, clientv3.WithPrefix())
-	if err != nil {
-		return nil, nil, err
-	}
-
-	if len(resp.Kvs) == 0 {
-		return nil, nil, ErrKVPairNotFound
-	}
-
-	kList := make([]string, 0, len(resp.Kvs))
-	vList := make([]string, 0, len(resp.Kvs))
-	for _, kv := range resp.Kvs {
-		kList = append(kList, string(kv.Key))
-		vList = append(vList, string(kv.Value))
-	}
-	return kList, vList, nil
-}
-
-func (c *Client) watchWithPrefix(prefix string) (clientv3.WatchChan, error) {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return nil, ErrNilETCDV3Client
-	}
-
-	return c.rawClient.Watch(c.ctx, prefix, clientv3.WithPrefix()), nil
-}
-
-func (c *Client) watch(k string) (clientv3.WatchChan, error) {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return nil, ErrNilETCDV3Client
-	}
-
-	return c.rawClient.Watch(c.ctx, k), nil
-}
-
-func (c *Client) keepAliveKV(k string, v string) error {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-
-	if c.rawClient == nil {
-		return ErrNilETCDV3Client
-	}
-
-	// make lease time longer, since 1 second is too short
-	lease, err := c.rawClient.Grant(c.ctx, int64(30*time.Second.Seconds()))
-	if err != nil {
-		return perrors.WithMessage(err, "grant lease")
-	}
-
-	keepAlive, err := c.rawClient.KeepAlive(c.ctx, lease.ID)
-	if err != nil || keepAlive == nil {
-		if _, revokeErr := c.rawClient.Revoke(c.ctx, lease.ID); revokeErr != nil {
-			logger.Warnf("rawClient.Revoke() = error:%v", revokeErr)
-		}
-		if err != nil {
-			return perrors.WithMessage(err, "keep alive lease")
-		} else {
-			return perrors.New("keep alive lease")
-		}
-	}
-
-	_, err = c.rawClient.Put(c.ctx, k, v, clientv3.WithLease(lease.ID))
-	return perrors.WithMessage(err, "put k/v with lease")
-}
-
-// nolint
-func (c *Client) Done() <-chan struct{} {
-	return c.exit
-}
-
-// nolint
-func (c *Client) Valid() bool {
-	select {
-	case <-c.exit:
-		return false
-	default:
-	}
-
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.rawClient != nil
-}
-
-// nolint
-func (c *Client) Create(k string, v string) error {
-	err := c.put(k, v)
-	return perrors.WithMessagef(err, "put k/v (key: %s value %s)", k, v)
-}
-
-// Update key value ...
-func (c *Client) Update(k, v string) error {
-	err := c.update(k, v)
-	return perrors.WithMessagef(err, "Update k/v (key: %s value %s)", k, v)
-}
-
-// nolint
-func (c *Client) Delete(k string) error {
-	err := c.delete(k)
-	return perrors.WithMessagef(err, "delete k/v (key %s)", k)
-}
-
-// RegisterTemp registers a temporary node
-func (c *Client) RegisterTemp(k, v string) error {
-	err := c.keepAliveKV(k, v)
-	return perrors.WithMessagef(err, "keepalive kv (key %s)", k)
-}
-
-// GetChildrenKVList gets children kv list by @k
-func (c *Client) GetChildrenKVList(k string) ([]string, []string, error) {
-	kList, vList, err := c.getChildren(k)
-	return kList, vList, perrors.WithMessagef(err, "get key children (key %s)", k)
-}
-
-// Get gets value by @k
-func (c *Client) Get(k string) (string, error) {
-	v, err := c.get(k)
-	return v, perrors.WithMessagef(err, "get key value (key %s)", k)
-}
-
-// Watch watches on spec key
-func (c *Client) Watch(k string) (clientv3.WatchChan, error) {
-	wc, err := c.watch(k)
-	return wc, perrors.WithMessagef(err, "watch prefix (key %s)", k)
-}
-
-// WatchWithPrefix watches on spec prefix
-func (c *Client) WatchWithPrefix(prefix string) (clientv3.WatchChan, error) {
-	wc, err := c.watchWithPrefix(prefix)
-	return wc, perrors.WithMessagef(err, "watch prefix (key %s)", prefix)
+	return client
 }
diff --git a/remoting/etcdv3/client_test.go b/remoting/etcdv3/client_test.go
deleted file mode 100644
index 0746307..0000000
--- a/remoting/etcdv3/client_test.go
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package etcdv3
-
-import (
-	"net/url"
-	"os"
-	"path"
-	"reflect"
-	"strings"
-	"sync"
-	"testing"
-	"time"
-)
-
-import (
-	"github.com/coreos/etcd/embed"
-	"github.com/coreos/etcd/mvcc/mvccpb"
-
-	perrors "github.com/pkg/errors"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/suite"
-
-	"google.golang.org/grpc/connectivity"
-)
-
-const defaultEtcdV3WorkDir = "/tmp/default-dubbo-go-remote.etcd"
-
-// tests dataset
-var tests = []struct {
-	input struct {
-		k string
-		v string
-	}
-}{
-	{input: struct {
-		k string
-		v string
-	}{k: "name", v: "scott.wang"}},
-	{input: struct {
-		k string
-		v string
-	}{k: "namePrefix", v: "prefix.scott.wang"}},
-	{input: struct {
-		k string
-		v string
-	}{k: "namePrefix1", v: "prefix1.scott.wang"}},
-	{input: struct {
-		k string
-		v string
-	}{k: "age", v: "27"}},
-}
-
-// test dataset prefix
-const prefix = "name"
-
-type ClientTestSuite struct {
-	suite.Suite
-
-	etcdConfig struct {
-		name      string
-		endpoints []string
-		timeout   time.Duration
-		heartbeat int
-	}
-
-	etcd *embed.Etcd
-
-	client *Client
-}
-
-// start etcd server
-func (suite *ClientTestSuite) SetupSuite() {
-
-	t := suite.T()
-
-	DefaultListenPeerURLs := "http://localhost:2382"
-	DefaultListenClientURLs := "http://localhost:2381"
-	lpurl, _ := url.Parse(DefaultListenPeerURLs)
-	lcurl, _ := url.Parse(DefaultListenClientURLs)
-	cfg := embed.NewConfig()
-	cfg.LPUrls = []url.URL{*lpurl}
-	cfg.LCUrls = []url.URL{*lcurl}
-	cfg.Dir = defaultEtcdV3WorkDir
-	e, err := embed.StartEtcd(cfg)
-	if err != nil {
-		t.Fatal(err)
-	}
-	select {
-	case <-e.Server.ReadyNotify():
-		t.Log("Server is ready!")
-	case <-time.After(60 * time.Second):
-		e.Server.Stop() // trigger a shutdown
-		t.Logf("Server took too long to start!")
-	}
-
-	suite.etcd = e
-}
-
-// stop etcd server
-func (suite *ClientTestSuite) TearDownSuite() {
-	suite.etcd.Close()
-	if err := os.RemoveAll(defaultEtcdV3WorkDir); err != nil {
-		suite.FailNow(err.Error())
-	}
-}
-
-func (suite *ClientTestSuite) setUpClient() *Client {
-	c, err := NewClient(suite.etcdConfig.name,
-		suite.etcdConfig.endpoints,
-		suite.etcdConfig.timeout,
-		suite.etcdConfig.heartbeat)
-	if err != nil {
-		suite.T().Fatal(err)
-	}
-	return c
-}
-
-// set up a client for suite
-func (suite *ClientTestSuite) SetupTest() {
-	c := suite.setUpClient()
-	err := c.CleanKV()
-	suite.Nil(err)
-	suite.client = c
-}
-
-func (suite *ClientTestSuite) TestClientClose() {
-
-	c := suite.client
-	t := suite.T()
-
-	defer c.Close()
-	if c.rawClient.ActiveConnection().GetState() != connectivity.Ready {
-		t.Fatal(suite.client.rawClient.ActiveConnection().GetState())
-	}
-}
-
-func (suite *ClientTestSuite) TestClientValid() {
-
-	c := suite.client
-	t := suite.T()
-
-	if !c.Valid() {
-		t.Fatal("client is not valid")
-	}
-	c.Close()
-	if suite.client.Valid() != false {
-		t.Fatal("client is valid")
-	}
-}
-
-func (suite *ClientTestSuite) TestClientDone() {
-
-	c := suite.client
-
-	go func() {
-		time.Sleep(2 * time.Second)
-		c.Close()
-	}()
-
-	c.Wait.Wait()
-
-	if c.Valid() {
-		suite.T().Fatal("client should be invalid then")
-	}
-}
-
-func (suite *ClientTestSuite) TestClientCreateKV() {
-
-	tests := tests
-
-	c := suite.client
-	t := suite.T()
-
-	defer suite.client.Close()
-
-	for _, tc := range tests {
-
-		k := tc.input.k
-		v := tc.input.v
-		expect := tc.input.v
-
-		if err := c.Create(k, v); err != nil {
-			t.Fatal(err)
-		}
-
-		value, err := c.Get(k)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if value != expect {
-			t.Fatalf("expect %v but get %v", expect, value)
-		}
-
-	}
-}
-
-func (suite *ClientTestSuite) TestClientDeleteKV() {
-
-	tests := tests
-	c := suite.client
-	t := suite.T()
-
-	defer c.Close()
-
-	for _, tc := range tests {
-
-		k := tc.input.k
-		v := tc.input.v
-		expect := ErrKVPairNotFound
-
-		if err := c.Create(k, v); err != nil {
-			t.Fatal(err)
-		}
-
-		if err := c.Delete(k); err != nil {
-			t.Fatal(err)
-		}
-
-		_, err := c.Get(k)
-		if perrors.Cause(err) == expect {
-			continue
-		}
-
-		if err != nil {
-			t.Fatal(err)
-		}
-	}
-
-}
-
-func (suite *ClientTestSuite) TestClientGetChildrenKVList() {
-
-	tests := tests
-
-	c := suite.client
-	t := suite.T()
-
-	var expectKList []string
-	var expectVList []string
-
-	for _, tc := range tests {
-
-		k := tc.input.k
-		v := tc.input.v
-
-		if strings.Contains(k, prefix) {
-			expectKList = append(expectKList, k)
-			expectVList = append(expectVList, v)
-		}
-
-		if err := c.Create(k, v); err != nil {
-			t.Fatal(err)
-		}
-	}
-
-	kList, vList, err := c.GetChildrenKVList(prefix)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if reflect.DeepEqual(expectKList, kList) && reflect.DeepEqual(expectVList, vList) {
-		return
-	}
-
-	t.Fatalf("expect keylist %v but got %v expect valueList %v but got %v ", expectKList, kList, expectVList, vList)
-
-}
-
-func (suite *ClientTestSuite) TestClientWatch() {
-
-	tests := tests
-
-	c := suite.client
-	t := suite.T()
-
-	wg := sync.WaitGroup{}
-	wg.Add(1)
-
-	go func() {
-
-		defer wg.Done()
-
-		wc, err := c.watch(prefix)
-		if err != nil {
-			t.Error(err)
-		}
-
-		events := make([]mvccpb.Event, 0)
-		var eCreate, eDelete mvccpb.Event
-
-		for e := range wc {
-
-			for _, event := range e.Events {
-				events = append(events, (mvccpb.Event)(*event))
-				if event.Type == mvccpb.PUT {
-					eCreate = (mvccpb.Event)(*event)
-				}
-				if event.Type == mvccpb.DELETE {
-					eDelete = (mvccpb.Event)(*event)
-				}
-				t.Logf("type IsCreate %v k %s v %s", event.IsCreate(), event.Kv.Key, event.Kv.Value)
-			}
-		}
-
-		assert.Equal(t, 2, len(events))
-		assert.Contains(t, events, eCreate)
-		assert.Contains(t, events, eDelete)
-	}()
-
-	for _, tc := range tests {
-
-		k := tc.input.k
-		v := tc.input.v
-
-		if err := c.Create(k, v); err != nil {
-			t.Fatal(err)
-		}
-
-		if err := c.delete(k); err != nil {
-			t.Fatal(err)
-		}
-	}
-
-	c.Close()
-
-	wg.Wait()
-
-}
-
-func (suite *ClientTestSuite) TestClientRegisterTemp() {
-
-	c := suite.client
-	observeC := suite.setUpClient()
-	t := suite.T()
-
-	wg := sync.WaitGroup{}
-	wg.Add(1)
-
-	go func() {
-		defer wg.Done()
-
-		completePath := path.Join("scott", "wang")
-		wc, err := observeC.watch(completePath)
-		if err != nil {
-			t.Error(err)
-		}
-
-		events := make([]mvccpb.Event, 0)
-		var eCreate, eDelete mvccpb.Event
-
-		for e := range wc {
-
-			for _, event := range e.Events {
-				events = append(events, (mvccpb.Event)(*event))
-				if event.Type == mvccpb.DELETE {
-					eDelete = (mvccpb.Event)(*event)
-					t.Logf("complete key (%s) is delete", completePath)
-					observeC.Close()
-					break
-				}
-				eCreate = (mvccpb.Event)(*event)
-				t.Logf("type IsCreate %v k %s v %s", event.IsCreate(), event.Kv.Key, event.Kv.Value)
-			}
-		}
-
-		assert.Equal(t, 2, len(events))
-		assert.Contains(t, events, eCreate)
-		assert.Contains(t, events, eDelete)
-	}()
-
-	err := c.RegisterTemp("scott/wang", "test")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	time.Sleep(2 * time.Second)
-	c.Close()
-
-	wg.Wait()
-}
-
-func TestClientSuite(t *testing.T) {
-	suite.Run(t, &ClientTestSuite{
-		etcdConfig: struct {
-			name      string
-			endpoints []string
-			timeout   time.Duration
-			heartbeat int
-		}{
-			name:      "test",
-			endpoints: []string{"localhost:2381"},
-			timeout:   time.Second,
-			heartbeat: 1,
-		},
-	})
-}
diff --git a/remoting/etcdv3/facade.go b/remoting/etcdv3/facade.go
index a4c814d..f7b6330 100644
--- a/remoting/etcdv3/facade.go
+++ b/remoting/etcdv3/facade.go
@@ -23,6 +23,7 @@
 )
 
 import (
+	etcd "github.com/dubbogo/gost/database/kv/etcd/v3"
 	gxtime "github.com/dubbogo/gost/time"
 
 	perrors "github.com/pkg/errors"
@@ -35,8 +36,8 @@
 )
 
 type clientFacade interface {
-	Client() *Client
-	SetClient(*Client)
+	Client() *etcd.Client
+	SetClient(*etcd.Client)
 	ClientLock() *sync.Mutex
 	WaitGroup() *sync.WaitGroup //for wait group control, etcd client listener & etcd client container
 	Done() chan struct{}        //for etcd client control
@@ -46,25 +47,22 @@
 
 // HandleClientRestart keeps the connection between client and server
 func HandleClientRestart(r clientFacade) {
-
 	var (
 		err       error
 		failTimes int
 	)
-
 	defer r.WaitGroup().Done()
 LOOP:
 	for {
 		select {
 		case <-r.Done():
 			logger.Warnf("(ETCDV3ProviderRegistry)reconnectETCDV3 goroutine exit now...")
-			break LOOP
-			// re-register all services
+			return
 		case <-r.Client().Done():
 			r.ClientLock().Lock()
-			clientName := RegistryETCDV3Client
+			clientName := etcd.RegistryETCDV3Client
 			timeout, _ := time.ParseDuration(r.GetURL().GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT))
-			endpoints := r.Client().endpoints
+			endpoints := r.Client().GetEndPoints()
 			r.Client().Close()
 			r.SetClient(nil)
 			r.ClientLock().Unlock()
@@ -80,9 +78,9 @@
 				}
 				err = ValidateClient(
 					r,
-					WithName(clientName),
-					WithEndpoints(endpoints...),
-					WithTimeout(timeout),
+					etcd.WithName(clientName),
+					etcd.WithEndpoints(endpoints...),
+					etcd.WithTimeout(timeout),
 				)
 				logger.Infof("ETCDV3ProviderRegistry.validateETCDV3Client(etcd Addr{%s}) = error{%#v}",
 					endpoints, perrors.WithStack(err))
@@ -94,6 +92,14 @@
 					failTimes = MaxFailTimes
 				}
 			}
+			// re-register all services
+		case <-r.Client().GetCtx().Done():
+			r.RestartCallBack()
+			time.Sleep(10 * time.Millisecond)
 		}
 	}
 }
+
+func timeSecondDuration(sec int) time.Duration {
+	return time.Duration(sec) * time.Second
+}
diff --git a/remoting/etcdv3/listener.go b/remoting/etcdv3/listener.go
index c1ad602..6050361 100644
--- a/remoting/etcdv3/listener.go
+++ b/remoting/etcdv3/listener.go
@@ -19,14 +19,16 @@
 
 import (
 	"sync"
-	"time"
 )
 
 import (
-	"github.com/coreos/etcd/clientv3"
-	"github.com/coreos/etcd/mvcc/mvccpb"
+	etcd "github.com/dubbogo/gost/database/kv/etcd/v3"
 
 	perrors "github.com/pkg/errors"
+
+	"go.etcd.io/etcd/api/v3/mvccpb"
+
+	client "go.etcd.io/etcd/client/v3"
 )
 
 import (
@@ -36,21 +38,21 @@
 
 // nolint
 type EventListener struct {
-	client     *Client
+	client     *etcd.Client
 	keyMapLock sync.RWMutex
 	keyMap     map[string]struct{}
 	wg         sync.WaitGroup
 }
 
 // NewEventListener returns a EventListener instance
-func NewEventListener(client *Client) *EventListener {
+func NewEventListener(client *etcd.Client) *EventListener {
 	return &EventListener{
 		client: client,
 		keyMap: make(map[string]struct{}),
 	}
 }
 
-// listenServiceNodeEvent Listen on a spec key
+// ListenServiceNodeEvent Listen on a spec key
 // this method will return true when spec key deleted,
 // this method will return false when deep layer connection lose
 func (l *EventListener) ListenServiceNodeEvent(key string, listener ...remoting.DataListener) bool {
@@ -63,14 +65,13 @@
 		}
 
 		select {
-
 		// client stopped
 		case <-l.client.Done():
 			logger.Warnf("etcd client stopped")
 			return false
 
 		// client ctx stop
-		case <-l.client.ctx.Done():
+		case <-l.client.GetCtx().Done():
 			logger.Warnf("etcd client ctx cancel")
 			return false
 
@@ -97,7 +98,7 @@
 
 // return true means the event type is DELETE
 // return false means the event type is CREATE || UPDATE
-func (l *EventListener) handleEvents(event *clientv3.Event, listeners ...remoting.DataListener) bool {
+func (l *EventListener) handleEvents(event *client.Event, listeners ...remoting.DataListener) bool {
 
 	logger.Infof("got a etcd event {type: %s, key: %s}", event.Type, event.Kv.Key)
 
@@ -149,7 +150,7 @@
 			return
 
 		// client ctx stop
-		case <-l.client.ctx.Done():
+		case <-l.client.GetCtx().Done():
 			logger.Warnf("etcd client ctx cancel")
 			return
 
@@ -172,10 +173,6 @@
 	}
 }
 
-func timeSecondDuration(sec int) time.Duration {
-	return time.Duration(sec) * time.Second
-}
-
 // ListenServiceEvent is invoked by etcdv3 ConsumerRegistry::Registe/ etcdv3 ConsumerRegistry::get/etcdv3 ConsumerRegistry::getListener
 // registry.go:Listen -> listenServiceEvent -> listenDirEvent -> listenServiceNodeEvent
 //                            |
@@ -194,7 +191,7 @@
 	l.keyMap[key] = struct{}{}
 	l.keyMapLock.Unlock()
 
-	keyList, valueList, err := l.client.getChildren(key)
+	keyList, valueList, err := l.client.GetChildren(key)
 	if err != nil {
 		logger.Warnf("Get new node path {%v} 's content error,message is  {%v}", key, perrors.WithMessage(err, "get children"))
 	}
@@ -227,7 +224,6 @@
 	}(key)
 }
 
-// nolint
 func (l *EventListener) Close() {
 	l.wg.Wait()
 }
diff --git a/remoting/etcdv3/listener_test.go b/remoting/etcdv3/listener_test.go
deleted file mode 100644
index 7da8581..0000000
--- a/remoting/etcdv3/listener_test.go
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package etcdv3
-
-import (
-	"time"
-)
-
-import (
-	"github.com/stretchr/testify/assert"
-)
-
-import (
-	"github.com/apache/dubbo-go/remoting"
-)
-
-var changedData = `
-	dubbo.consumer.request_timeout=3s
-	dubbo.consumer.connect_timeout=5s
-	dubbo.application.organization=ikurento.com
-	dubbo.application.name=BDTService
-	dubbo.application.module=dubbogo user-info server
-	dubbo.application.version=0.0.1
-	dubbo.application.owner=ZX
-	dubbo.application.environment=dev
-	dubbo.registries.hangzhouzk.protocol=zookeeper
-	dubbo.registries.hangzhouzk.timeout=3s
-	dubbo.registries.hangzhouzk.address=127.0.0.1:2181
-	dubbo.registries.shanghaizk.protocol=zookeeper
-	dubbo.registries.shanghaizk.timeout=3s
-	dubbo.registries.shanghaizk.address=127.0.0.1:2182
-	dubbo.service.com.ikurento.user.UserProvider.protocol=dubbo
-	dubbo.service.com.ikurento.user.UserProvider.interface=com.ikurento.user.UserProvider
-	dubbo.service.com.ikurento.user.UserProvider.loadbalance=random
-	dubbo.service.com.ikurento.user.UserProvider.warmup=100
-	dubbo.service.com.ikurento.user.UserProvider.cluster=failover
-`
-
-func (suite *ClientTestSuite) TestListener() {
-
-	var tests = []struct {
-		input struct {
-			k string
-			v string
-		}
-	}{
-		{input: struct {
-			k string
-			v string
-		}{k: "/dubbo", v: changedData}},
-	}
-
-	c := suite.client
-	t := suite.T()
-
-	listener := NewEventListener(c)
-	dataListener := &mockDataListener{client: c, changedData: changedData, rc: make(chan remoting.Event)}
-	listener.ListenServiceEvent("/dubbo", dataListener)
-
-	// NOTICE:  direct listen will lose create msg
-	time.Sleep(time.Second)
-	for _, tc := range tests {
-
-		k := tc.input.k
-		v := tc.input.v
-		if err := c.Create(k, v); err != nil {
-			t.Fatal(err)
-		}
-
-	}
-	msg := <-dataListener.rc
-	assert.Equal(t, changedData, msg.Content)
-}
-
-type mockDataListener struct {
-	eventList   []remoting.Event
-	client      *Client
-	changedData string
-
-	rc chan remoting.Event
-}
-
-func (m *mockDataListener) DataChange(eventType remoting.Event) bool {
-	m.eventList = append(m.eventList, eventType)
-	if eventType.Content == m.changedData {
-		m.rc <- eventType
-	}
-	return true
-}
diff --git a/samples b/samples
deleted file mode 160000
index ac38818..0000000
--- a/samples
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit ac38818cd13ec2536fe59e51523a4fde3aee37da