Node.js Socket.io WebSocket de Configuration de Nginx?

Je suis à l'aide de Citrix équilibreur de charge.

Derrière cela , il y a 4 virtual serveur Nginx.
ip est comme 172.16.10.40, 172.16.10.41, 172.16.10.42, 172.16.10.43

Et 1 serveur de test
172.16.10.50.

Nodejs installé sur le serveur de test situé sur 172.16.10.50.

J'ai créé un sous-domaine pour nodejs comme sub.example.com.

Mon nodejs application fonctionne sur 8070 port.

Je veux utiliser Websocket pas xhr-mise en commun.
Avec mes codes et des configs ci-dessous, En Chrome de la Console, j'ai vu que

Status Code:101 Switching Protocols

Mais Rien appers sur des Cadres. Pas de pression.

Si je change socketURL à

var socketURL   = http://172.16.10.50:8070

Websocket de travail sans anyproblem dans la plate-forme de test (172.16.10.50).

Mais, Dans la vraie Plate-forme, je dois utiliser"http://sub.example.com:8070';

Si j'ai mis socket.io : 'transports', ['xhr-polling'] ;
xhr-interrogation est de travail. Mais je veux l'utiliser WebSocket.

 nginx version: nginx/1.4.1 
 node v0.8.8 
 socket.io v0.9.16

Ce que je dois faire?

Merci.

app.js

var app =
  server = require('http').createServer(app)
  , io = require('socket.io').listen(server,{ log: false })
  , url = require('url')
  , http= require('http')
  ,redis   = require("redis");

//io.set('transports', ['xhr-polling']); 

var livefeed        = redis.createClient();
server.listen(8070);

livefeed.on("message", function(channel, message){
    console.log("%s, the message : %s", channel, message);  
    io.sockets.in(channel).emit(channel,message);
});

io.sockets.on('connection', function (socket) {
    console.log("["+socket.id+"] connected"); 
    socket.on('subscribe', function (data) {
        //console.log("joining : %s",data.channel);
        socket.join(data.channel);
      });
    socket.on('unsubscribe', function(room) {  
        //console.log('leaving room', room);
        socket.leave(room); 
    });
    socket.on('disconnect', function (socket) {
        connected_socket--;
        console.log("Client disconnected");     
        SocketCount();
    });

});

example.js

var socketURL   =   'http://sub.example.com:8070';
var socket      = false;

var BKSocket = {
   connectSocket : function(){
        if(socket === false){
            try{
                socket = io.connect(socketURL,{'connect timeout': 1000});
            }catch(e){
                socket = false;
            }
        }
    },
    livefeeds:function(){
        this.connectSocket();

        if(socket !== false){
            socket.on('connect', function(data){                
                socket.emit('subscribe', {channel:'livefeed'});
            });             
            socket.on('livefeed', function (data) {
                console.log(data);
            });
        }       
    }
}

nginx Config

upstream backend {
    server 127.0.0.1:8070;
}

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
    listen 80;
    server_name sub.example.com;

    #server_name _;
    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;

        proxy_pass http://backend/;
        proxy_redirect off;

        #proxy_http_version 1.1;
        #proxy_set_header Upgrade $http_upgrade;
        #proxy_set_header Connection $connection_upgrade;

        access_log off;
        error_log   /var/log/nginx/sub.example.com.error.log;

    }
}

erreur.journal

2013/11/25 09:40:08 [error] 29812#0: *25900 upstream prematurely closed connection while reading response header from upstream, client: 172.16.10.10, server: v2.bitenekadar.com, request: "GET /socket.io/1/websocket/NPXo9XDAKbAapgpyLqCd HTTP/1.1", upstream: "http://172.16.10.50:8070/socket.io/1/websocket/NPXo9XDAKbAapgpyLqCd", host: "v2.bitenekadar.com"
2013/11/25 09:41:36 [error] 29812#0: *26046 upstream prematurely closed connection while reading response header from upstream, client: 172.16.10.10, server: v2.bitenekadar.com, request: "GET /socket.io/1/websocket/RxBjIryz50FjUs1RLqCe HTTP/1.1", upstream: "http://172.16.10.50:8070/socket.io/1/websocket/RxBjIryz50FjUs1RLqCe", host: "v2.bitenekadar.com"
2013/11/25 09:42:10 [error] 29812#0: *26046 upstream prematurely closed connection while reading response header from upstream, client: 172.16.10.10, server: v2.bitenekadar.com, request: "GET /socket.io/1/websocket/ZMuHPZgFcOGmULNdNStr HTTP/1.1", upstream: "http://172.16.10.50:8070/socket.io/1/websocket/ZMuHPZgFcOGmULNdNStr", host: "v2.bitenekadar.com"
2013/11/25 09:43:17 [error] 29812#0: *26063 upstream prematurely closed connection while reading response header from upstream, client: 172.16.10.10, server: v2.bitenekadar.com, request: "GET /socket.io/1/websocket/J3qPn40WioPviZZMNSts HTTP/1.1", upstream: "http://172.16.10.50:8070/socket.io/1/websocket/J3qPn40WioPviZZMNSts", host: "v2.bitenekadar.com"
2013/11/25 09:45:23 [error] 29812#0: *26181 upstream prematurely closed connection while reading response header from upstream, client: 172.16.10.10, server: v2.bitenekadar.com, request: "GET /socket.io/1/websocket/CtOaZ65Dq7dAX6jEOAap HTTP/1.1", upstream: "http://172.16.10.50:8070/socket.io/1/websocket/CtOaZ65Dq7dAX6jEOAap", host: "v2.bitenekadar.com"

OriginalL'auteur orhan bengisu | 2013-08-03