【发布时间】：2023-03-18 11:10:01
【问题描述】：
我正在使用 Citrix 负载平衡器。
在这之后，有 4 个虚拟 Nginx 服务器。 ip 比如 172.16.10.40, 172.16.10.41, 172.16.10.42, 172.16.10.43
还有 1 台测试服务器 172.16.10.50.
Nodejs 安装在位于 172.16.10.50 的测试服务器上。
我已经为 nodejs 创建了一个子域，例如 sub.example.com。
我的 nodejs 应用在 8070 端口上运行。
我想使用 Websocket 而不是 xhr-pooling。 使用下面的代码和配置，在 Chrome 控制台中我看到了
Status Code:101 Switching Protocols
但是 Frames 上没有任何内容。不推。
如果我将 socketURL 更改为
var socketURL = http://172.16.10.50:8070
Websocket 在测试平台 (172.16.10.50) 中正常工作。
但是，在真正的平台上我必须使用'http://sub.example.com:8070';
如果我设置 socket.io : 'transsports', ['xhr-polling'] ; xhr-polling 正在工作。但我想使用 WebSocket。
nginx version: nginx/1.4.1
node v0.8.8
socket.io v0.9.16
我该怎么办？
谢谢。
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 配置
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;
}
}
错误日志
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"
【问题讨论】：
标签： node.js nginx proxy websocket socket.io