testing udp

This reverts commit 69694a17be.

weed/command/volume.go

@@ -3,7 +3,7 @@ package command
 import (
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/storage/types"
-	"github.com/chrislusf/seaweedfs/weed/udptransfer"
+	"github.com/chrislusf/seaweedfs/weed/wdclient/penet"
 	"net"
 	"net/http"
 	httppprof "net/http/pprof"
@@ -401,13 +401,7 @@ func (v VolumeServerOptions) startTcpService(volumeServer *weed_server.VolumeSer
 func (v VolumeServerOptions) startUdpService(volumeServer *weed_server.VolumeServer) {
 	listeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.port+20001)
 
-	listener, err := udptransfer.NewEndpoint(&udptransfer.Params{
-		LocalAddr:      listeningAddress,
-		Bandwidth:      100,
-		FastRetransmit: true,
-		FlatTraffic:    true,
-		IsServ:         true,
-	})
+	listener, err := penet.Listen("", listeningAddress)
 	if err != nil {
 		glog.Fatalf("Volume server listen on %s:%v", listeningAddress, err)
 	}
@@ -416,7 +410,6 @@ func (v VolumeServerOptions) startUdpService(volumeServer *weed_server.VolumeSer
 	for {
 		conn, err := listener.Accept()
 		if err == nil {
-			glog.V(0).Infof("Client from %s", conn.RemoteAddr())
 			go volumeServer.HandleUdpConnection(conn)
 		} else if isTemporaryError(err) {
 			continue

weed/server/volume_server_udp_handlers.go

@@ -10,8 +10,6 @@ import (
 func (vs *VolumeServer) HandleUdpConnection(c net.Conn) {
 	defer c.Close()
 
-	glog.V(0).Infof("Serving writes from %s", c.RemoteAddr().String())
-
 	bufReader := bufio.NewReaderSize(c, 1024*1024)
 	bufWriter := bufio.NewWriterSize(c, 1024*1024)
 
@@ -19,7 +17,7 @@ func (vs *VolumeServer) HandleUdpConnection(c net.Conn) {
 		cmd, err := bufReader.ReadString('\n')
 		if err != nil {
 			if err != io.EOF {
-				glog.Errorf("read command from %s: %v", c.RemoteAddr().String(), err)
+				// glog.Errorf("read command from: %v", err)
 			}
 			return
 		}

weed/wdclient/volume_udp_client.go

@@ -3,18 +3,22 @@ package wdclient
 import (
 	"bufio"
 	"github.com/chrislusf/seaweedfs/weed/pb"
-	"github.com/chrislusf/seaweedfs/weed/udptransfer"
 	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/chrislusf/seaweedfs/weed/wdclient/penet"
 	"io"
 	"net"
+	"time"
 )
 
 // VolumeUdpClient put/get/delete file chunks directly on volume servers without replication
 type VolumeUdpClient struct {
+	Conn      net.Conn
+	bufWriter *bufio.Writer
+	bufReader *bufio.Reader
 }
 
 type VolumeUdpConn struct {
-	net.Conn
+	Conn      net.Conn
 	bufWriter *bufio.Writer
 	bufReader *bufio.Reader
 }
@@ -30,41 +34,29 @@ func (c *VolumeUdpClient) PutFileChunk(volumeServerAddress string, fileId string
 		return parseErr
 	}
 
-	listener, err := udptransfer.NewEndpoint(&udptransfer.Params{
-		LocalAddr:      "",
-		Bandwidth:      100,
-		FastRetransmit: true,
-		FlatTraffic:    true,
-		IsServ:         false,
-	})
-	if err != nil {
-		return err
+	if c.Conn == nil {
+		c.Conn, err = penet.DialTimeout("", udpAddress, 500*time.Millisecond)
+		if err != nil {
+			return err
+		}
+		c.bufWriter = bufio.NewWriter(c.Conn)
 	}
-	defer listener.Close()
-
-	conn, err := listener.Dial(udpAddress)
-	if err != nil {
-		return err
-	}
-	defer conn.Close()
-
-	bufWriter := bufio.NewWriter(conn)
 
 	buf := []byte("+" + fileId + "\n")
-	_, err = bufWriter.Write([]byte(buf))
+	_, err = c.bufWriter.Write([]byte(buf))
 	if err != nil {
 		return
 	}
 	util.Uint32toBytes(buf[0:4], fileSize)
-	_, err = bufWriter.Write(buf[0:4])
+	_, err = c.bufWriter.Write(buf[0:4])
 	if err != nil {
 		return
 	}
-	_, err = io.Copy(bufWriter, fileReader)
+	_, err = io.Copy(c.bufWriter, fileReader)
 	if err != nil {
 		return
 	}
-	bufWriter.Flush()
+	c.bufWriter.Flush()
 
 	return nil
 }