diff --git a/weed/server/volume_server_udp_handlers.go b/weed/server/volume_server_udp_handlers.go
index b1f95446c..974ec78d2 100644
--- a/weed/server/volume_server_udp_handlers.go
+++ b/weed/server/volume_server_udp_handlers.go
@@ -23,6 +23,7 @@ func (vs *VolumeServer) HandleUdpConnection(c net.Conn) {
 			}
 			return
 		}
+		println("received", cmd)
 		cmd = cmd[:len(cmd)-1]
 		switch cmd[0] {
 		case '+':
diff --git a/weed/wdclient/volume_udp_client.go b/weed/wdclient/volume_udp_client.go
index 470d7a82d..d0365f110 100644
--- a/weed/wdclient/volume_udp_client.go
+++ b/weed/wdclient/volume_udp_client.go
@@ -5,15 +5,12 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/udptransfer"
 	"github.com/chrislusf/seaweedfs/weed/util"
-	"github.com/chrislusf/seaweedfs/weed/wdclient/net2"
 	"io"
 	"net"
-	"time"
 )
 
 // VolumeUdpClient put/get/delete file chunks directly on volume servers without replication
 type VolumeUdpClient struct {
-	cp net2.ConnectionPool
 }
 
 type VolumeUdpConn struct {
@@ -23,41 +20,7 @@ type VolumeUdpConn struct {
 }
 
 func NewVolumeUdpClient() *VolumeUdpClient {
-	MaxIdleTime := 10 * time.Second
 	return &VolumeUdpClient{
-		cp: net2.NewMultiConnectionPool(net2.ConnectionOptions{
-			MaxActiveConnections: 16,
-			MaxIdleConnections:   1,
-			MaxIdleTime:          &MaxIdleTime,
-			DialMaxConcurrency:   0,
-			Dial: func(network string, address string) (net.Conn, error) {
-
-				listener, err := udptransfer.NewEndpoint(&udptransfer.Params{
-					LocalAddr:      "",
-					Bandwidth:      100,
-					FastRetransmit: true,
-					FlatTraffic:    true,
-					IsServ:         false,
-				})
-				if err != nil {
-					return nil, err
-				}
-
-				conn, err := listener.Dial(address)
-				if err != nil {
-					return nil, err
-				}
-				return &VolumeUdpConn{
-					conn,
-					bufio.NewWriter(conn),
-					bufio.NewReader(conn),
-				}, err
-
-			},
-			NowFunc:      nil,
-			ReadTimeout:  0,
-			WriteTimeout: 0,
-		}),
 	}
 }
 func (c *VolumeUdpClient) PutFileChunk(volumeServerAddress string, fileId string, fileSize uint32, fileReader io.Reader) (err error) {
@@ -77,6 +40,7 @@ func (c *VolumeUdpClient) PutFileChunk(volumeServerAddress string, fileId string
 	if err != nil {
 		return err
 	}
+	defer listener.Close()
 
 	conn, err := listener.Dial(udpAddress)
 	if err != nil {
@@ -100,7 +64,6 @@ func (c *VolumeUdpClient) PutFileChunk(volumeServerAddress string, fileId string
 	if err != nil {
 		return
 	}
-	bufWriter.Write([]byte("!\n"))
 	bufWriter.Flush()
 
 	return nil