与Node.js,Websocket – Socket.IO和Redis进行简单聊天的多个实例

我正在尝试用Node.JS和使用Socket.IO的Websocket创build一个简单的聊天应用程序。 我通过这个德语教程启发了我自己,并为单个后端实例运行良好。

我想在后端有2个服务器实例,它们应该在彼此之间同步聊天消息,并将聊天logging存储在redis中。 当新的聊天室join时,客户端应该显示当前频道的最后10条消息。

我试图从这个stackoverflow页面应用解决scheme,但我得到一些问题。 首先我得到

连接到'ws:// localhost:8080 / socket.io /?EIO = 3&transport = websocket&sid = LEqGvY0CVk9YaSzBAAAA'的WebSocket连接失败:连接在收到握手响应之前closures

在控制台中的错误。 其次,两个客户端都在1秒内收到“有效载荷”消息。 我可能不明白如何重新同步机制的作品,我也不知道如何显示聊天logging。

这是我的代码到目前为止:

var conf = require('./config.json'); var cluster = require('cluster'); var os = require('os'); if (cluster.isMaster) { // we create a HTTP server, but we do not use listen // that way, we have a socket.io server that doesn't accept connections var server = require('http').createServer(); var io = require('socket.io').listen(server); var redis = require('socket.io-redis'); io.adapter(redis({ host: conf.redisUri, port: conf.redisPort })); setInterval(function() { // all workers will receive this in Redis, and emit io.emit('chat', {time: new Date(), text:'payload'}); }, conf.syncIntervall); // set number of workers for (var i = 0; i < conf.numberOfWorkers; i++) { cluster.fork(); } cluster.on('exit', function(worker, code, signal) { console.log('worker ' + worker.process.pid + ' died'); }); } if (cluster.isWorker) { var express = require('express'); var app = express(); var http = require('http'); var server = http.createServer(app); var io = require('socket.io').listen(server); var redis = require('socket.io-redis'); // Webserver //app.listen(conf.defaultPort); server.listen(conf.defaultPort); // deliver static files app.use(express.static(__dirname + '/public')); // route for the / path app.get('/', function (req, res) { // send the index.html in the reponse res.sendfile(__dirname + '/public/index.html'); }); // Websocket io.adapter(redis({ host: conf.redisUri, port: conf.redisPort })); // Callback when a client connects io.sockets.on('connection', function (socket) { // store the room name in the socket session for this client socket.room = 'defaultChannel'; // send client to room 1 socket.join('defaultChannel'); // echo to client they've connected socket.emit('chat', { time: new Date(), text: 'You have connected to room defaultChannel on the server!' }); socket.emit('chat', { time: new Date(), text: 'Connected to chat worker-node: ' + cluster.worker.id}); // if a message is received socket.on('chat', function (data) { // the it will be send to all other clients console.log('the current channel', socket.room); socket.broadcast.in(socket.room).emit('chat', { time: new Date(), name: data.name || 'anonymous', text: data.text }); }); // if a client joins a channel socket.on('join', function (room) { // store the room name in the socket session for this client socket.room = room; // send client to room 1 socket.join(room); console.log('Client joined room ' + room); }); }); // Log port number in the console console.log('Server running under http://127.0.0.1:' + conf.defaultPort + '/'); } 

       

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