diff --git a/cmd/api/main.go b/cmd/api/main.go
index f154b3bd7..b39a294a8 100644
--- a/cmd/api/main.go
+++ b/cmd/api/main.go
@@ -4,15 +4,17 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"gopkg.in/yaml.v3"
 	"net"
 	"strconv"
 
+	"gopkg.in/yaml.v3"
+
 	"github.com/OpenIMSDK/Open-IM-Server/internal/api"
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/cmd"
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/config"
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/cache"
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/log"
+	"github.com/OpenIMSDK/Open-IM-Server/pkg/discoveryregistry"
 	"github.com/OpenIMSDK/openKeeper"
 
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/constant"
@@ -31,11 +33,13 @@ func run(port int) error {
 	if port == 0 {
 		port = config.Config.Api.GinPort[0]
 	}
+	var err error
 	rdb, err := cache.NewRedis()
 	if err != nil {
 		return err
 	}
-	zk, err := openKeeper.NewClient(config.Config.Zookeeper.ZkAddr, config.Config.Zookeeper.Schema, 10, config.Config.Zookeeper.UserName, config.Config.Zookeeper.Password)
+	var client discoveryregistry.SvcDiscoveryRegistry
+	client, err = openKeeper.NewClient(config.Config.Zookeeper.ZkAddr, config.Config.Zookeeper.Schema, 10, config.Config.Zookeeper.UserName, config.Config.Zookeeper.Password)
 	if err != nil {
 		return err
 	}
@@ -43,11 +47,11 @@ func run(port int) error {
 	if err := yaml.NewEncoder(buf).Encode(config.Config); err != nil {
 		return err
 	}
-	if err := zk.RegisterConf2Registry(constant.OpenIMCommonConfigKey, buf.Bytes()); err != nil {
+	if err := client.RegisterConf2Registry(constant.OpenIMCommonConfigKey, buf.Bytes()); err != nil {
 		return err
 	}
 	log.NewPrivateLog(constant.LogFileName)
-	router := api.NewGinRouter(zk, rdb)
+	router := api.NewGinRouter(client, rdb)
 	var address string
 	if config.Config.Api.ListenIP != "" {
 		address = net.JoinHostPort(config.Config.Api.ListenIP, strconv.Itoa(port))
diff --git a/internal/rpc/group/group.go b/internal/rpc/group/group.go
index ee414e726..70a98afba 100644
--- a/internal/rpc/group/group.go
+++ b/internal/rpc/group/group.go
@@ -256,17 +256,6 @@ func (s *groupServer) InviteUserToGroup(ctx context.Context, req *pbGroup.Invite
 	if group.Status == constant.GroupStatusDismissed {
 		return nil, errs.ErrDismissedAlready.Wrap()
 	}
-	members, err := s.GroupDatabase.FindGroupMember(ctx, []string{group.GroupID}, nil, nil)
-	if err != nil {
-		return nil, err
-	}
-	memberMap := utils.SliceToMap(members, func(e *relationTb.GroupMemberModel) string {
-		return e.UserID
-	})
-	if ids := utils.Single(req.InvitedUserIDs, utils.Keys(memberMap)); len(ids) > 0 {
-		log.ZDebug(ctx, "user in group", "ids", ids)
-		return nil, errs.ErrArgs.Wrap("user in group " + strings.Join(ids, ","))
-	}
 	userMap, err := s.UserCheck.GetUsersInfoMap(ctx, req.InvitedUserIDs, true)
 	if err != nil {
 		return nil, err
@@ -274,11 +263,14 @@ func (s *groupServer) InviteUserToGroup(ctx context.Context, req *pbGroup.Invite
 	if group.NeedVerification == constant.AllNeedVerification {
 		if !tokenverify.IsAppManagerUid(ctx) {
 			opUserID := mcontext.GetOpUserID(ctx)
-			member, ok := memberMap[opUserID]
-			if !ok {
+			groupMembers, err := s.GroupDatabase.FindGroupMember(ctx, []string{req.GroupID}, []string{opUserID}, nil)
+			if err != nil {
+				return nil, err
+			}
+			if len(groupMembers) <= 0 {
 				return nil, errs.ErrNoPermission.Wrap("not in group")
 			}
-			if !(member.RoleLevel == constant.GroupOwner || member.RoleLevel == constant.GroupAdmin) {
+			if !(groupMembers[0].RoleLevel == constant.GroupOwner || groupMembers[0].RoleLevel == constant.GroupAdmin) {
 				var requests []*relationTb.GroupRequestModel
 				for _, userID := range req.InvitedUserIDs {
 					requests = append(requests, &relationTb.GroupRequestModel{
diff --git a/pkg/common/db/controller/group.go b/pkg/common/db/controller/group.go
index da2b3062d..f130cc333 100644
--- a/pkg/common/db/controller/group.go
+++ b/pkg/common/db/controller/group.go
@@ -208,7 +208,8 @@ func (g *groupDatabase) PageGroupMember(ctx context.Context, groupIDs []string,
 						totalGroupMembers = append(totalGroupMembers, groupMembers...)
 					}
 				}
-				return
+
+				return uint32(len(totalGroupMembers)), totalGroupMembers, nil
 			}
 			for _, groupID := range groupIDs {
 				groupMembers, err := g.cache.GetGroupMembersInfo(ctx, groupID, userIDs)
@@ -234,7 +235,7 @@ func (g *groupDatabase) PageGroupMember(ctx context.Context, groupIDs []string,
 						totalGroupMembers = append(totalGroupMembers, groupMembers...)
 					}
 				}
-				return
+				return uint32(len(totalGroupMembers)), totalGroupMembers, nil
 			}
 			for _, groupID := range groupIDs {
 				groupMembers, err := g.cache.GetGroupMembersPage(ctx, groupID, userIDs, pageNumber, showNumber)