diff --git a/internal/rpc/friend/firend.go b/internal/rpc/friend/firend.go
index 4e3172b44..5c2c2a359 100644
--- a/internal/rpc/friend/firend.go
+++ b/internal/rpc/friend/firend.go
@@ -99,7 +99,12 @@ func (s *friendServer) AddBlacklist(ctx context.Context, req *pbFriend.AddBlackl
 	}
 	log.NewInfo(req.CommID.OperationID, "AddBlacklist rpc ok ", req.CommID.FromUserID, req.CommID.ToUserID)
 	reqAddBlackUserToCache := &pbCache.AddBlackUserToCacheReq{UserID: req.CommID.FromUserID, BlackUserID: req.CommID.ToUserID, OperationID: req.CommID.OperationID}
-	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.CommID.OperationID)
+	if etcdConn == nil {
+		errMsg := req.CommID.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.CommID.OperationID, errMsg)
+		return &pbFriend.AddBlacklistResp{CommonResp: &pbFriend.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+	}
 	cacheClient := pbCache.NewCacheClient(etcdConn)
 	cacheResp, err := cacheClient.AddBlackUserToCache(context.Background(), reqAddBlackUserToCache)
 	if err != nil {
@@ -263,7 +268,12 @@ func (s *friendServer) AddFriendResponse(ctx context.Context, req *pbFriend.AddF
 			}
 			// cache rpc
 			addFriendToCacheReq := &pbCache.AddFriendToCacheReq{OperationID: req.CommID.OperationID}
-			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.CommID.OperationID)
+			if etcdConn == nil {
+				errMsg := req.CommID.OperationID + "getcdv3.GetConn == nil"
+				log.NewError(req.CommID.OperationID, errMsg)
+				return &pbFriend.AddFriendResponseResp{CommonResp: &pbFriend.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+			}
 			client := pbCache.NewCacheClient(etcdConn)
 			addFriendToCacheReq.UserID = req.CommID.ToUserID
 			addFriendToCacheReq.FriendID = req.CommID.FromUserID
@@ -318,7 +328,12 @@ func (s *friendServer) DeleteFriend(ctx context.Context, req *pbFriend.DeleteFri
 	}
 	log.NewInfo(req.CommID.OperationID, "DeleteFriend rpc ok")
 	reduceFriendFromCache := &pbCache.ReduceFriendFromCacheReq{OperationID: req.CommID.OperationID, UserID: req.CommID.FromUserID, FriendID: req.CommID.ToUserID}
-	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.CommID.OperationID)
+	if etcdConn == nil {
+		errMsg := req.CommID.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.CommID.OperationID, errMsg)
+		return &pbFriend.DeleteFriendResp{CommonResp: &pbFriend.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+	}
 	client := pbCache.NewCacheClient(etcdConn)
 	respPb, err := client.ReduceFriendFromCache(context.Background(), reduceFriendFromCache)
 	if err != nil {
@@ -399,7 +414,13 @@ func (s *friendServer) RemoveBlacklist(ctx context.Context, req *pbFriend.Remove
 	}
 	log.NewInfo(req.CommID.OperationID, "rpc RemoveBlacklist ok ")
 	reqReduceBlackUserFromCache := &pbCache.ReduceBlackUserFromCacheReq{UserID: req.CommID.FromUserID, BlackUserID: req.CommID.ToUserID, OperationID: req.CommID.OperationID}
-	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.CommID.OperationID)
+	if etcdConn == nil {
+		errMsg := req.CommID.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.CommID.OperationID, errMsg)
+		return &pbFriend.RemoveBlacklistResp{CommonResp: &pbFriend.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+	}
+
 	cacheClient := pbCache.NewCacheClient(etcdConn)
 	cacheResp, err := cacheClient.ReduceBlackUserFromCache(context.Background(), reqReduceBlackUserFromCache)
 	if err != nil {
diff --git a/internal/rpc/group/group.go b/internal/rpc/group/group.go
index 79c186013..147e06b63 100644
--- a/internal/rpc/group/group.go
+++ b/internal/rpc/group/group.go
@@ -187,7 +187,12 @@ func (s *groupServer) CreateGroup(ctx context.Context, req *pbGroup.CreateGroupR
 			GroupID:     groupId,
 			OperationID: req.OperationID,
 		}
-		etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+		etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.OperationID)
+		if etcdConn == nil {
+			errMsg := req.OperationID + "getcdv3.GetConn == nil"
+			log.NewError(req.OperationID, errMsg)
+			return &pbGroup.CreateGroupResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}, nil
+		}
 		cacheClient := pbCache.NewCacheClient(etcdConn)
 		cacheResp, err := cacheClient.AddGroupMemberToCache(context.Background(), addGroupMemberToCacheReq)
 		if err != nil {
@@ -332,7 +337,12 @@ func (s *groupServer) InviteUserToGroup(ctx context.Context, req *pbGroup.Invite
 			c.IsNotInGroup = false
 			c.Ex = v.Ex
 			reqPb.Conversation = &c
-			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName)
+			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName, req.OperationID)
+			if etcdConn == nil {
+				errMsg := req.OperationID + "getcdv3.GetConn == nil"
+				log.NewError(req.OperationID, errMsg)
+				return &pbGroup.InviteUserToGroupResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}, nil
+			}
 			client := pbUser.NewUserClient(etcdConn)
 			respPb, err := client.SetConversation(context.Background(), &reqPb)
 			if err != nil {
@@ -349,7 +359,12 @@ func (s *groupServer) InviteUserToGroup(ctx context.Context, req *pbGroup.Invite
 			c.GroupID = req.GroupID
 			c.IsNotInGroup = false
 			reqPb.Conversation = &c
-			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName)
+			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName, req.OperationID)
+			if etcdConn == nil {
+				errMsg := req.OperationID + "getcdv3.GetConn == nil"
+				log.NewError(req.OperationID, errMsg)
+				return &pbGroup.InviteUserToGroupResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}, nil
+			}
 			client := pbUser.NewUserClient(etcdConn)
 			respPb, err := client.SetConversation(context.Background(), &reqPb)
 			if err != nil {
@@ -371,7 +386,12 @@ func (s *groupServer) InviteUserToGroup(ctx context.Context, req *pbGroup.Invite
 		GroupID:     req.GroupID,
 		OperationID: req.OperationID,
 	}
-	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.OperationID)
+	if etcdConn == nil {
+		errMsg := req.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.OperationID, errMsg)
+		return &pbGroup.InviteUserToGroupResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}, nil
+	}
 	cacheClient := pbCache.NewCacheClient(etcdConn)
 	cacheResp, err := cacheClient.AddGroupMemberToCache(context.Background(), addGroupMemberToCacheReq)
 	if err != nil {
@@ -550,7 +570,14 @@ func (s *groupServer) KickGroupMember(ctx context.Context, req *pbGroup.KickGrou
 			c.GroupID = req.GroupID
 			c.IsNotInGroup = true
 			reqPb.Conversation = &c
-			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName)
+			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName, req.OperationID)
+			if etcdConn == nil {
+				errMsg := req.OperationID + "getcdv3.GetConn == nil"
+				log.NewError(req.OperationID, errMsg)
+				resp.ErrCode = constant.ErrInternal.ErrCode
+				resp.ErrMsg = errMsg
+				return &resp, nil
+			}
 			client := pbUser.NewUserClient(etcdConn)
 			respPb, err := client.SetConversation(context.Background(), &reqPb)
 			if err != nil {
@@ -574,7 +601,12 @@ func (s *groupServer) KickGroupMember(ctx context.Context, req *pbGroup.KickGrou
 		GroupID:     req.GroupID,
 		OperationID: req.OperationID,
 	}
-	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.OperationID)
+	if etcdConn == nil {
+		errMsg := req.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.OperationID, errMsg)
+		return &pbGroup.KickGroupMemberResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}, nil
+	}
 	cacheClient := pbCache.NewCacheClient(etcdConn)
 	cacheResp, err := cacheClient.ReduceGroupMemberFromCache(context.Background(), reduceGroupMemberFromCacheReq)
 	if err != nil {
@@ -731,7 +763,12 @@ func (s *groupServer) GroupApplicationResponse(_ context.Context, req *pbGroup.G
 			c.Ex = conversation.Ex
 		}
 		reqPb.Conversation = &c
-		etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName)
+		etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName, req.OperationID)
+		if etcdConn == nil {
+			errMsg := req.OperationID + "getcdv3.GetConn == nil"
+			log.NewError(req.OperationID, errMsg)
+			return &pbGroup.GroupApplicationResponseResp{CommonResp: &pbGroup.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+		}
 		client := pbUser.NewUserClient(etcdConn)
 		respPb, err := client.SetConversation(context.Background(), &reqPb)
 		if err != nil {
@@ -740,7 +777,12 @@ func (s *groupServer) GroupApplicationResponse(_ context.Context, req *pbGroup.G
 			log.NewDebug(req.OperationID, utils.GetSelfFuncName(), "SetConversation success", respPb.String())
 		}
 		addGroupMemberToCacheReq := &pbCache.AddGroupMemberToCacheReq{OperationID: req.OperationID, GroupID: req.GroupID, UserIDList: []string{req.FromUserID}}
-		etcdCacheConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+		etcdCacheConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.OperationID)
+		if etcdConn == nil {
+			errMsg := req.OperationID + "getcdv3.GetConn == nil"
+			log.NewError(req.OperationID, errMsg)
+			return &pbGroup.GroupApplicationResponseResp{CommonResp: &pbGroup.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+		}
 		cacheClient := pbCache.NewCacheClient(etcdCacheConn)
 		cacheResp, err := cacheClient.AddGroupMemberToCache(context.Background(), addGroupMemberToCacheReq)
 		if err != nil {
@@ -834,7 +876,12 @@ func (s *groupServer) QuitGroup(ctx context.Context, req *pbGroup.QuitGroupReq)
 	c.GroupID = req.GroupID
 	c.IsNotInGroup = true
 	reqPb.Conversation = &c
-	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName)
+	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName, req.OperationID)
+	if etcdConn == nil {
+		errMsg := req.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.OperationID, errMsg)
+		return &pbGroup.QuitGroupResp{CommonResp: &pbGroup.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+	}
 	client := pbUser.NewUserClient(etcdConn)
 	respPb, err := client.SetConversation(context.Background(), &reqPb)
 	if err != nil {
@@ -848,7 +895,12 @@ func (s *groupServer) QuitGroup(ctx context.Context, req *pbGroup.QuitGroupReq)
 		GroupID:     req.GroupID,
 		OperationID: req.OperationID,
 	}
-	etcdConnCache := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+	etcdConnCache := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.OperationID)
+	if etcdConn == nil {
+		errMsg := req.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.OperationID, errMsg)
+		return &pbGroup.QuitGroupResp{CommonResp: &pbGroup.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+	}
 	cacheClient := pbCache.NewCacheClient(etcdConnCache)
 	cacheResp, err := cacheClient.ReduceGroupMemberFromCache(context.Background(), reduceGroupMemberFromCacheReq)
 	if err != nil {
@@ -936,7 +988,12 @@ func (s *groupServer) SetGroupInfo(ctx context.Context, req *pbGroup.SetGroupInf
 	if req.GroupInfo.Notification != "" {
 		//get group member user id
 		getGroupMemberIDListFromCacheReq := &pbCache.GetGroupMemberIDListFromCacheReq{OperationID: req.OperationID, GroupID: req.GroupInfo.GroupID}
-		etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+		etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.OperationID)
+		if etcdConn == nil {
+			errMsg := req.OperationID + "getcdv3.GetConn == nil"
+			log.NewError(req.OperationID, errMsg)
+			return &pbGroup.SetGroupInfoResp{CommonResp: &pbGroup.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, http.WrapError(constant.ErrInternal)
+		}
 		client := pbCache.NewCacheClient(etcdConn)
 		cacheResp, err := client.GetGroupMemberIDListFromCache(context.Background(), getGroupMemberIDListFromCacheReq)
 		if err != nil {
@@ -960,7 +1017,12 @@ func (s *groupServer) SetGroupInfo(ctx context.Context, req *pbGroup.SetGroupInf
 		conversationReq.FieldType = constant.FieldGroupAtType
 		conversation.GroupAtType = constant.GroupNotification
 		conversationReq.UserIDList = cacheResp.UserIDList
-		nEtcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImConversationName)
+		nEtcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImConversationName, req.OperationID)
+		if etcdConn == nil {
+			errMsg := req.OperationID + "getcdv3.GetConn == nil"
+			log.NewError(req.OperationID, errMsg)
+			return &pbGroup.SetGroupInfoResp{CommonResp: &pbGroup.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, http.WrapError(constant.ErrInternal)
+		}
 		nClient := pbConversation.NewConversationClient(nEtcdConn)
 		conversationReply, err := nClient.ModifyConversationField(context.Background(), &conversationReq)
 		if err != nil {
@@ -1156,7 +1218,12 @@ func (s *groupServer) OperateUserRole(_ context.Context, req *pbGroup.OperateUse
 		log.NewError(req.OperationID, utils.GetSelfFuncName(), "GetGroupMaster failed", err.Error())
 		return resp, http.WrapError(constant.ErrDB)
 	}
-	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImGroupName)
+	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImGroupName, req.OperationID)
+	if etcdConn == nil {
+		errMsg := req.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.OperationID, errMsg)
+		return resp, http.WrapError(constant.ErrInternal)
+	}
 	client := pbGroup.NewGroupClient(etcdConn)
 	var reqPb pbGroup.TransferGroupOwnerReq
 	reqPb.OperationID = req.OperationID
@@ -1237,7 +1304,12 @@ func (s *groupServer) RemoveGroupMembersCMS(_ context.Context, req *pbGroup.Remo
 		c.GroupID = req.GroupId
 		c.IsNotInGroup = true
 		reqPb.Conversation = &c
-		etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName)
+		etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName, req.OperationID)
+		if etcdConn == nil {
+			errMsg := req.OperationID + "getcdv3.GetConn == nil"
+			log.NewError(req.OperationID, errMsg)
+			return resp, http.WrapError(constant.ErrInternal)
+		}
 		client := pbUser.NewUserClient(etcdConn)
 		respPb, err := client.SetConversation(context.Background(), &reqPb)
 		if err != nil {
@@ -1252,7 +1324,12 @@ func (s *groupServer) RemoveGroupMembersCMS(_ context.Context, req *pbGroup.Remo
 		GroupID:     req.GroupId,
 		OperationID: req.OperationID,
 	}
-	etcdConnCache := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+	etcdConnCache := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.OperationID)
+	if etcdConnCache == nil {
+		errMsg := req.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(req.OperationID, errMsg)
+		return resp, http.WrapError(constant.ErrInternal)
+	}
 	cacheClient := pbCache.NewCacheClient(etcdConnCache)
 	cacheResp, err := cacheClient.ReduceGroupMemberFromCache(context.Background(), reduceGroupMemberFromCacheReq)
 	if err != nil {
@@ -1308,7 +1385,12 @@ func (s *groupServer) AddGroupMembersCMS(_ context.Context, req *pbGroup.AddGrou
 		GroupID:     req.GroupId,
 		OperationID: req.OperationId,
 	}
-	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName)
+	etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, req.OperationId)
+	if etcdConn == nil {
+		errMsg := req.OperationId + "getcdv3.GetConn == nil"
+		log.NewError(req.OperationId, errMsg)
+		return resp, http.WrapError(constant.ErrInternal)
+	}
 	cacheClient := pbCache.NewCacheClient(etcdConn)
 	cacheResp, err := cacheClient.AddGroupMemberToCache(context.Background(), addGroupMemberToCacheReq)
 	if err != nil {
@@ -1393,7 +1475,12 @@ func (s *groupServer) DismissGroup(ctx context.Context, req *pbGroup.DismissGrou
 			c.GroupID = req.GroupID
 			c.IsNotInGroup = true
 			reqPb.Conversation = &c
-			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName)
+			etcdConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImUserName, req.OperationID)
+			if etcdConn == nil {
+				errMsg := req.OperationID + "getcdv3.GetConn == nil"
+				log.NewError(req.OperationID, errMsg)
+				return &pbGroup.DismissGroupResp{CommonResp: &pbGroup.CommonResp{ErrCode: constant.ErrInternal.ErrCode, ErrMsg: errMsg}}, nil
+			}
 			client := pbUser.NewUserClient(etcdConn)
 			respPb, err := client.SetConversation(context.Background(), &reqPb)
 			if err != nil {