diff --git a/internal/msg_gateway/gate/ws_server.go b/internal/msg_gateway/gate/ws_server.go
index 9b61318b3..09af4a4ea 100644
--- a/internal/msg_gateway/gate/ws_server.go
+++ b/internal/msg_gateway/gate/ws_server.go
@@ -90,7 +90,7 @@ func (ws *WServer) readMsg(conn *UserConn) {
 			log.NewInfo("", "this is a  pingMessage")
 		}
 		if err != nil {
-			log.Error("", "WS ReadMsg error ", " userIP", conn.RemoteAddr().String(), "userUid", "platform", "error", err.Error())
+			log.NewWarn("", "WS ReadMsg error ", " userIP", conn.RemoteAddr().String(), "userUid", "platform", "error", err.Error())
 			userCount--
 			ws.delUserConn(conn)
 			return
diff --git a/pkg/common/config/config.go b/pkg/common/config/config.go
index 56cc66bb7..5714dff2e 100644
--- a/pkg/common/config/config.go
+++ b/pkg/common/config/config.go
@@ -103,17 +103,17 @@ type config struct {
 		SlowThreshold  int      `yaml:"slowThreshold"`
 	}
 	Mongo struct {
-		DBUri                string `yaml:"dbUri"`
-		DBAddress            string `yaml:"dbAddress"`
-		DBDirect             bool   `yaml:"dbDirect"`
-		DBTimeout            int    `yaml:"dbTimeout"`
-		DBDatabase           string `yaml:"dbDatabase"`
-		DBSource             string `yaml:"dbSource"`
-		DBUserName           string `yaml:"dbUserName"`
-		DBPassword           string `yaml:"dbPassword"`
-		DBMaxPoolSize        int    `yaml:"dbMaxPoolSize"`
-		DBRetainChatRecords  int    `yaml:"dbRetainChatRecords"`
-		ChatRecordsClearTime string `yaml:"chatRecordsClearTime"`
+		DBUri                string   `yaml:"dbUri"`
+		DBAddress            []string `yaml:"dbAddress"`
+		DBDirect             bool     `yaml:"dbDirect"`
+		DBTimeout            int      `yaml:"dbTimeout"`
+		DBDatabase           string   `yaml:"dbDatabase"`
+		DBSource             string   `yaml:"dbSource"`
+		DBUserName           string   `yaml:"dbUserName"`
+		DBPassword           string   `yaml:"dbPassword"`
+		DBMaxPoolSize        int      `yaml:"dbMaxPoolSize"`
+		DBRetainChatRecords  int      `yaml:"dbRetainChatRecords"`
+		ChatRecordsClearTime string   `yaml:"chatRecordsClearTime"`
 	}
 	Redis struct {
 		DBAddress     []string `yaml:"dbAddress"`
diff --git a/pkg/common/constant/constant.go b/pkg/common/constant/constant.go
index 3642b31c3..aa7a747cf 100644
--- a/pkg/common/constant/constant.go
+++ b/pkg/common/constant/constant.go
@@ -337,4 +337,4 @@ const StatisticsTimeInterval = 60
 
 const MaxNotificationNum = 100
 
-const CurrentVersion = "v2.3.3"
+const CurrentVersion = "v2.3.3-rc0"
diff --git a/pkg/common/db/model.go b/pkg/common/db/model.go
index 7fe53b77a..88236f4a4 100644
--- a/pkg/common/db/model.go
+++ b/pkg/common/db/model.go
@@ -58,15 +58,29 @@ func init() {
 		// example: mongodb://$user:$password@mongo1.mongo:27017,mongo2.mongo:27017,mongo3.mongo:27017/$DBDatabase/?replicaSet=rs0&readPreference=secondary&authSource=admin&maxPoolSize=$DBMaxPoolSize
 		uri = config.Config.Mongo.DBUri
 	} else {
+		//mongodb://mongodb1.example.com:27317,mongodb2.example.com:27017/?replicaSet=mySet&authSource=authDB
+		mongodbHosts := ""
+		for i, v := range config.Config.Mongo.DBAddress {
+			if i == len(config.Config.Mongo.DBAddress)-1 {
+				mongodbHosts += v
+			} else {
+				mongodbHosts += v + ","
+			}
+		}
+
 		if config.Config.Mongo.DBPassword != "" && config.Config.Mongo.DBUserName != "" {
-			uri = fmt.Sprintf("mongodb://%s:%s@%s/%s?maxPoolSize=%d&authSource=admin", config.Config.Mongo.DBUserName, config.Config.Mongo.DBPassword, config.Config.Mongo.DBAddress,
+			// clientOpts := options.Client().ApplyURI("mongodb://localhost:27017,localhost:27018/?replicaSet=replset")
+			//mongodb://[username:password@]host1[:port1][,...hostN[:portN]][/[defaultauthdb][?options]]
+			uri = fmt.Sprintf("mongodb://%s:%s@%s/%s?maxPoolSize=%d&authSource=admin&replicaSet=replset",
+				config.Config.Mongo.DBUserName, config.Config.Mongo.DBPassword, mongodbHosts,
 				config.Config.Mongo.DBDatabase, config.Config.Mongo.DBMaxPoolSize)
 		} else {
-			uri = fmt.Sprintf("mongodb://%s/%s/?maxPoolSize=%d&authSource=admin",
-				config.Config.Mongo.DBAddress, config.Config.Mongo.DBDatabase,
+			uri = fmt.Sprintf("mongodb://%s/%s/?maxPoolSize=%d&authSource=admin&replicaSet=replset",
+				mongodbHosts, config.Config.Mongo.DBDatabase,
 				config.Config.Mongo.DBMaxPoolSize)
 		}
 	}
+
 	mongoClient, err := mongo.Connect(context.TODO(), options.Client().ApplyURI(uri))
 	if err != nil {
 		fmt.Println(" mongo.Connect  failed, try ", utils.GetSelfFuncName(), err.Error(), uri)