diff --git a/pkg/discoveryregistry/discovery_register.go b/pkg/discoveryregistry/discovery_register.go
index e9e706ab4..4214ed49b 100644
--- a/pkg/discoveryregistry/discovery_register.go
+++ b/pkg/discoveryregistry/discovery_register.go
@@ -8,10 +8,10 @@ import (
 )
 
 type Conn interface {
-	GetConns(ctx context.Context, serviceName string, opts ...grpc.DialOption) ([]*grpc.ClientConn, error)
-	GetConn(ctx context.Context, serviceName string, opts ...grpc.DialOption) (*grpc.ClientConn, error)
+	GetConns(ctx context.Context, serviceName string, opts ...grpc.DialOption) ([]grpc.ClientConnInterface, error)
+	GetConn(ctx context.Context, serviceName string, opts ...grpc.DialOption) (grpc.ClientConnInterface, error)
 	AddOption(opts ...grpc.DialOption)
-	CloseConn(conn *grpc.ClientConn)
+	CloseConn(conn grpc.ClientConnInterface)
 	// do not use this method for call rpc
 	GetClientLocalConns() map[string][]resolver.Address
 }
diff --git a/pkg/discoveryregistry/zookeeper/debug.go b/pkg/discoveryregistry/zookeeper/debug.go
new file mode 100644
index 000000000..acfae7cc5
--- /dev/null
+++ b/pkg/discoveryregistry/zookeeper/debug.go
@@ -0,0 +1,47 @@
+package zookeeper
+
+import (
+	"context"
+	"fmt"
+	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/log"
+	"google.golang.org/grpc"
+	"strings"
+)
+
+func newClientConnInterface(cc grpc.ClientConnInterface) grpc.ClientConnInterface {
+	return &clientConnInterface{cc: cc}
+}
+
+type clientConnInterface struct {
+	cc grpc.ClientConnInterface
+}
+
+func (c *clientConnInterface) callOptionToString(opts []grpc.CallOption) string {
+	arr := make([]string, 0, len(opts)+1)
+	arr = append(arr, fmt.Sprintf("opts len: %d", len(opts)))
+	for i, opt := range opts {
+		arr = append(arr, fmt.Sprintf("[%d:%T]", i, opt))
+	}
+	return strings.Join(arr, ", ")
+}
+
+func (c *clientConnInterface) Invoke(ctx context.Context, method string, args interface{}, reply interface{}, opts ...grpc.CallOption) error {
+	log.ZDebug(ctx, "grpc.ClientConnInterface.Invoke in", "method", method, "args", args, "reply", reply, "opts", c.callOptionToString(opts))
+	if err := c.cc.Invoke(ctx, method, args, reply, opts...); err != nil {
+		log.ZError(ctx, "grpc.ClientConnInterface.Invoke error", err, "method", method, "args", args, "reply", reply)
+		return err
+	}
+	log.ZDebug(ctx, "grpc.ClientConnInterface.Invoke success", "method", method, "args", args, "reply", reply)
+	return nil
+}
+
+func (c *clientConnInterface) NewStream(ctx context.Context, desc *grpc.StreamDesc, method string, opts ...grpc.CallOption) (grpc.ClientStream, error) {
+	log.ZDebug(ctx, "grpc.ClientConnInterface.NewStream in", "desc", desc, "method", method, "opts", c.callOptionToString(opts))
+	cs, err := c.cc.NewStream(ctx, desc, method, opts...)
+	if err != nil {
+		log.ZError(ctx, "grpc.ClientConnInterface.NewStream error", err, "desc", desc, "method", method, "opts", len(opts))
+		return nil, err
+	}
+	log.ZDebug(ctx, "grpc.ClientConnInterface.NewStream success", "desc", desc, "method", method, "opts", len(opts))
+	return cs, nil
+}
diff --git a/pkg/discoveryregistry/zookeeper/discover.go b/pkg/discoveryregistry/zookeeper/discover.go
index 610c125e8..8a7c114fa 100644
--- a/pkg/discoveryregistry/zookeeper/discover.go
+++ b/pkg/discoveryregistry/zookeeper/discover.go
@@ -71,7 +71,7 @@ func (s *ZkClient) GetConnsRemote(serviceName string) (conns []resolver.Address,
 	return conns, nil
 }
 
-func (s *ZkClient) GetConns(ctx context.Context, serviceName string, opts ...grpc.DialOption) ([]*grpc.ClientConn, error) {
+func (s *ZkClient) GetConns(ctx context.Context, serviceName string, opts ...grpc.DialOption) ([]grpc.ClientConnInterface, error) {
 	s.logger.Printf("get conns from client, serviceName: %s", serviceName)
 	s.lock.Lock()
 	defer s.lock.Unlock()
@@ -86,24 +86,28 @@ func (s *ZkClient) GetConns(ctx context.Context, serviceName string, opts ...grp
 		}
 		s.localConns[serviceName] = conns
 	}
-	var ret []*grpc.ClientConn
+	var ret []grpc.ClientConnInterface
 	s.logger.Printf("get conns from zk success, serviceName: %s", serviceName)
 	for _, conn := range conns {
-		c, err := grpc.DialContext(ctx, conn.Addr, append(s.options, opts...)...)
+		cc, err := grpc.DialContext(ctx, conn.Addr, append(s.options, opts...)...)
 		if err != nil {
 			return nil, errors.Wrap(err, fmt.Sprintf("conns dialContext error, conn: %s", conn.Addr))
 		}
-		ret = append(ret, c)
+		ret = append(ret, newClientConnInterface(cc))
 	}
 	s.logger.Printf("dial ctx success, serviceName: %s", serviceName)
 	return ret, nil
 }
 
-func (s *ZkClient) GetConn(ctx context.Context, serviceName string, opts ...grpc.DialOption) (*grpc.ClientConn, error) {
+func (s *ZkClient) GetConn(ctx context.Context, serviceName string, opts ...grpc.DialOption) (grpc.ClientConnInterface, error) {
 	newOpts := append(s.options, grpc.WithDefaultServiceConfig(fmt.Sprintf(`{"LoadBalancingPolicy": "%s"}`, s.balancerName)))
-	return grpc.DialContext(ctx, fmt.Sprintf("%s:///%s", s.scheme, serviceName), append(newOpts, opts...)...)
+	cc, err := grpc.DialContext(ctx, fmt.Sprintf("%s:///%s", s.scheme, serviceName), append(newOpts, opts...)...)
+	if err != nil {
+		return nil, err
+	}
+	return newClientConnInterface(cc), nil
 }
 
-func (s *ZkClient) CloseConn(conn *grpc.ClientConn) {
-	conn.Close()
+func (s *ZkClient) CloseConn(conn grpc.ClientConnInterface) {
+	//conn.Close()
 }