diff --git a/common/address.go b/common/address.go
index b457efab14..faa1ef53e9 100644
--- a/common/address.go
+++ b/common/address.go
@@ -99,7 +99,7 @@ func Bech32ToAddress(s string) (Address, error) {
 	if currentAddressHRP == "" {
 		log.Warn("the address hrp not set yet", "input", s)
 	} else if currentAddressHRP != hrpDecode {
-		log.Warn("the address not compare current net", "want", currentAddressHRP, "input", s)
+		//log.Warn("the address not compare current net", "want", currentAddressHRP, "input", s)
 	}
 	return BytesToAddress(converted), nil
 }
@@ -258,7 +258,7 @@ func (a *Address) UnmarshalText(input []byte) error {
 		return err
 	}
 	if !CheckAddressHRP(hrpDecode) {
-		log.Warn("address prefix does not match the current network", "want", GetAddressHRP(), "have", string(input))
+		//log.Warn("address prefix does not match the current network", "want", GetAddressHRP(), "have", string(input))
 	}
 	a.SetBytes(converted)
 	return nil
@@ -277,7 +277,7 @@ func (a *Address) UnmarshalJSON(input []byte) error {
 		return &json.UnmarshalTypeError{Value: err.Error(), Type: addressT}
 	}
 	if !CheckAddressHRP(hrpDecode) {
-		log.Warn("hrpDecode not compare the current net", "want", GetAddressHRP(), "have", hrpDecode)
+		log.Trace("hrpDecode not compare the current net", "want", GetAddressHRP(), "have", hrpDecode)
 	}
 	a.SetBytes(v)
 	return nil
diff --git a/rootchain/handler.go b/rootchain/handler.go
index 8f1676a3dd..1db0aede82 100644
--- a/rootchain/handler.go
+++ b/rootchain/handler.go
@@ -90,14 +90,9 @@ func (em *EventManager) Listen() error {
 	}
 	client.SetNameSpace("platon")
 	newHeadChan := make(chan *types.Header)
-	newHeadSubscribe, err := client.SubscribeNewHead(context.Background(), newHeadChan)
-	if err != nil {
-		close(newHeadChan)
-		log.Error("listening to the block header fails", "error", err)
-		return err
-	}
+	go em.subscribeRootChainNewHead(newHeadChan, client)
+
 	defer func() {
-		newHeadSubscribe.Unsubscribe()
 		client.Close()
 	}()
 
@@ -108,10 +103,6 @@ func (em *EventManager) Listen() error {
 		case <-em.exit:
 			log.Warn("event listener exit")
 			return nil
-		case err := <-newHeadSubscribe.Err():
-			log.Error("subscription failure", "error", err)
-			// TODO 处理订阅区块头失败的情况
-			return err
 		case resultBlock := <-em.bftResultCh:
 			// Clear irreversible, already processed rootChain events
 			stopBlockNumber := types.DecodeStakeExtra(resultBlock.Extra())
@@ -175,6 +166,34 @@ func (em *EventManager) Listen() error {
 	}
 }
 
+func (em *EventManager) subscribeRootChainNewHead(headerChan chan *types.Header, client *ethclient.Client) error {
+	var newHeadSubscribe appchain.Subscription
+	var subChan chan *types.Header
+	defer func() {
+		newHeadSubscribe.Unsubscribe()
+	}()
+reSubscribe:
+	subChan = make(chan *types.Header)
+	newHeadSubscribe, err := client.SubscribeNewHead(context.Background(), subChan)
+	if err != nil {
+		log.Error("listening to the block header fails", "error", err)
+		return err
+	}
+	for {
+		select {
+		case <-em.exit:
+			log.Warn("event listener exit")
+			return nil
+		case err := <-newHeadSubscribe.Err():
+			log.Error("subscription failure && resubscribe", "error", err)
+			goto reSubscribe
+		case newHead := <-subChan:
+			headerChan <- newHead
+		}
+	}
+	return nil
+}
+
 type BlockNumberListSort []uint64
 
 func (bnl BlockNumberListSort) Len() int {
diff --git a/rpc/websocket.go b/rpc/websocket.go
index e06ee751a1..0981d42a05 100644
--- a/rpc/websocket.go
+++ b/rpc/websocket.go
@@ -37,6 +37,7 @@ const (
 	wsWriteBuffer      = 1024
 	wsPingInterval     = 60 * time.Second
 	wsPingWriteTimeout = 5 * time.Second
+	wsDefaultReadLimit = 32 * 1024 * 1024
 )
 
 var wsBufferPool = new(sync.Pool)
@@ -58,7 +59,7 @@ func (s *Server) WebsocketHandler(allowedOrigins []string) http.Handler {
 			log.Debug("WebSocket upgrade failed", "err", err)
 			return
 		}
-		codec := newWebsocketCodec(conn)
+		codec := newWebsocketCodec(conn, wsDefaultReadLimit)
 		s.ServeCodec(codec, 0)
 	})
 }
@@ -195,7 +196,7 @@ func DialWebsocketWithDialer(ctx context.Context, endpoint, origin string, diale
 			}
 			return nil, hErr
 		}
-		return newWebsocketCodec(conn), nil
+		return newWebsocketCodec(conn, wsDefaultReadLimit), nil
 	})
 }
 
@@ -238,8 +239,8 @@ type websocketCodec struct {
 	pingReset chan struct{}
 }
 
-func newWebsocketCodec(conn *websocket.Conn) ServerCodec {
-	conn.SetReadLimit(maxRequestContentLength)
+func newWebsocketCodec(conn *websocket.Conn, readLimit int64) ServerCodec {
+	conn.SetReadLimit(readLimit)
 	wc := &websocketCodec{
 		jsonCodec: NewFuncCodec(conn, conn.WriteJSON, conn.ReadJSON).(*jsonCodec),
 		conn:      conn,