diff --git a/src/msg_gateway/gate/logic.go b/src/msg_gateway/gate/logic.go
index f577439cc..a79fd25c6 100644
--- a/src/msg_gateway/gate/logic.go
+++ b/src/msg_gateway/gate/logic.go
@@ -4,12 +4,12 @@ import (
 	"Open_IM/src/common/config"
 	"Open_IM/src/common/constant"
 	"Open_IM/src/common/log"
+	"Open_IM/src/grpc-etcdv3/getcdv3"
 	pbChat "Open_IM/src/proto/chat"
 	"Open_IM/src/utils"
 	"context"
 	"encoding/json"
 	"github.com/gorilla/websocket"
-	"github.com/skiffer-git/grpc-etcdv3/getcdv3"
 	"strings"
 )
 
diff --git a/src/msg_gateway/gate/rpc_server.go b/src/msg_gateway/gate/rpc_server.go
index 35f7938af..e9aa28033 100644
--- a/src/msg_gateway/gate/rpc_server.go
+++ b/src/msg_gateway/gate/rpc_server.go
@@ -4,13 +4,13 @@ import (
 	"Open_IM/src/common/config"
 	"Open_IM/src/common/constant"
 	"Open_IM/src/common/log"
+	"Open_IM/src/grpc-etcdv3/getcdv3"
 	pbRelay "Open_IM/src/proto/relay"
 	"Open_IM/src/utils"
 	"context"
 	"encoding/json"
 	"fmt"
 	"github.com/gorilla/websocket"
-	"github.com/skiffer-git/grpc-etcdv3/getcdv3"
 	"google.golang.org/grpc"
 	"net"
 	"strings"
diff --git a/src/msg_gateway/gate/ws_server.go b/src/msg_gateway/gate/ws_server.go
index a62007fc7..ffc14680d 100644
--- a/src/msg_gateway/gate/ws_server.go
+++ b/src/msg_gateway/gate/ws_server.go
@@ -80,23 +80,40 @@ func (ws *WServer) writeMsg(conn *websocket.Conn, a int, msg []byte) error {
 func (ws *WServer) addUserConn(uid string, conn *websocket.Conn) {
 	rwLock.Lock()
 	defer rwLock.Unlock()
+	if oldConn, ok := ws.wsUserToConn[uid]; ok {
+		err := oldConn.Close()
+		delete(ws.wsConnToUser, oldConn)
+		if err != nil {
+			log.ErrorByKv("close err", "", "uid", uid, "conn", conn)
+		}
+	} else {
+		log.InfoByKv("this user is first login", "", "uid", uid)
+	}
 	ws.wsConnToUser[conn] = uid
 	ws.wsUserToConn[uid] = conn
-	log.WarnByKv("WS Add operation", "", "wsUser added", ws.wsUserToConn, "uid", uid)
+	log.WarnByKv("WS Add operation", "", "wsUser added", ws.wsUserToConn, "uid", uid, "online_num", len(ws.wsUserToConn))
 
 }
 
 func (ws *WServer) delUserConn(conn *websocket.Conn) {
 	rwLock.Lock()
 	defer rwLock.Unlock()
+	var uidPlatform string
 	if uid, ok := ws.wsConnToUser[conn]; ok {
+		uidPlatform = uid
 		if _, ok = ws.wsUserToConn[uid]; ok {
 			delete(ws.wsUserToConn, uid)
-			log.WarnByKv("WS delete operation", "", "wsUser deleted", ws.wsUserToConn, "uid", uid)
+			log.WarnByKv("WS delete operation", "", "wsUser deleted", ws.wsUserToConn, "uid", uid, "online_num", len(ws.wsUserToConn))
+		} else {
+			log.WarnByKv("uid not exist", "", "wsUser deleted", ws.wsUserToConn, "uid", uid, "online_num", len(ws.wsUserToConn))
 		}
 		delete(ws.wsConnToUser, conn)
 	}
-	conn.Close()
+	err := conn.Close()
+	if err != nil {
+		log.ErrorByKv("close err", "", "uid", uidPlatform, "conn", conn)
+	}
+
 }
 
 func (ws *WServer) getUserConn(uid string) *websocket.Conn {
diff --git a/src/msg_transfer/logic/history_msg_handler.go b/src/msg_transfer/logic/history_msg_handler.go
index cdf8f7721..9a585eca2 100644
--- a/src/msg_transfer/logic/history_msg_handler.go
+++ b/src/msg_transfer/logic/history_msg_handler.go
@@ -5,14 +5,13 @@ import (
 	"Open_IM/src/common/constant"
 	kfk "Open_IM/src/common/kafka"
 	"Open_IM/src/common/log"
+	"Open_IM/src/grpc-etcdv3/getcdv3"
 	pbMsg "Open_IM/src/proto/chat"
 	pbPush "Open_IM/src/proto/push"
-	"Open_IM/src/push/content_struct"
 	"Open_IM/src/utils"
 	"context"
 	"github.com/Shopify/sarama"
 	"github.com/golang/protobuf/proto"
-	"github.com/skiffer-git/grpc-etcdv3/getcdv3"
 	"strings"
 )
 
@@ -87,17 +86,6 @@ func (mc *HistoryConsumerHandler) handleChatWs2Mongo(msg []byte, msgKey string)
 	} else if pbData.SessionType == constant.GroupChatType {
 		log.Info("", "", "msg_transfer chat type = GroupChatType")
 		uidAndGroupID := strings.Split(pbData.RecvID, " ")
-		if pbData.ContentType == constant.AtText {
-			atContent := content_struct.AtTextContent{
-				Text:       pbData.Content,
-				AtUserList: pbData.ForceList,
-			}
-			if utils.IsContain(uidAndGroupID[0], pbData.ForceList) {
-				atContent.IsAtSelf = true
-			}
-			pbSaveData.Content = utils.StructToJsonString(atContent)
-		}
-
 		saveUserChat(uidAndGroupID[0], &pbSaveData)
 		pbSaveData.Options = pbData.Options
 		pbSaveData.OfflineInfo = pbData.OfflineInfo
@@ -148,7 +136,6 @@ func sendMessageToPush(message *pbMsg.MsgSvrToPushSvrChatMsg) {
 	}
 	msgClient := pbPush.NewPushMsgServiceClient(grpcConn)
 	_, err := msgClient.PushMsg(context.Background(), &msg)
-	defer grpcConn.Close()
 	if err != nil {
 		log.ErrorByKv("rpc send failed", msg.OperationID, "push data", msg.String(), "err", err.Error())
 		pid, offset, err := producer.SendMessage(message)
diff --git a/src/push/content_struct/content.go b/src/push/content_struct/content.go
index 8b311686a..6821c6a52 100644
--- a/src/push/content_struct/content.go
+++ b/src/push/content_struct/content.go
@@ -57,6 +57,18 @@ type CreateGroupSysMsg struct {
 	Text           string                `json:"text"`
 }
 
+type NotificationContent struct {
+	IsDisplay   int32  `json:"isDisplay"`
+	DefaultTips string `json:"defaultTips"`
+	Detail      string `json:"detail"`
+}
+type KickGroupMemberApiReq struct {
+	GroupID     string   `json:"groupID"`
+	UidList     []string `json:"uidList"`
+	Reason      string   `json:"reason"`
+	OperationID string   `json:"operationID"`
+}
+
 func NewCreateGroupSysMsgString(create *CreateGroupSysMsg, text string) string {
 	create.Text = text
 	jstring, _ := json.Marshal(create)
diff --git a/src/push/logic/push_rpc_server.go b/src/push/logic/push_rpc_server.go
index c856e56e5..ed128790c 100644
--- a/src/push/logic/push_rpc_server.go
+++ b/src/push/logic/push_rpc_server.go
@@ -3,11 +3,11 @@ package logic
 import (
 	"Open_IM/src/common/config"
 	"Open_IM/src/common/log"
+	"Open_IM/src/grpc-etcdv3/getcdv3"
 	"Open_IM/src/proto/push"
 	pbRelay "Open_IM/src/proto/relay"
 	"Open_IM/src/utils"
 	"context"
-	"github.com/skiffer-git/grpc-etcdv3/getcdv3"
 	"google.golang.org/grpc"
 	"net"
 	"strings"
diff --git a/src/push/logic/push_to_client.go b/src/push/logic/push_to_client.go
index 11072f184..c52ff0a61 100644
--- a/src/push/logic/push_to_client.go
+++ b/src/push/logic/push_to_client.go
@@ -10,6 +10,7 @@ import (
 	"Open_IM/src/common/config"
 	"Open_IM/src/common/constant"
 	"Open_IM/src/common/log"
+	"Open_IM/src/grpc-etcdv3/getcdv3"
 	pbChat "Open_IM/src/proto/chat"
 	pbGroup "Open_IM/src/proto/group"
 	pbRelay "Open_IM/src/proto/relay"
@@ -20,7 +21,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"github.com/skiffer-git/grpc-etcdv3/getcdv3"
 	"strings"
 )