Question

我正在尝试使用sub / pub redis.io-redis适配器扩展聊天应用程序，但是在群集模式下不能很好地工作，我不确定我做错了什么。这是我的服务器代码：这是我的server.js文件，它将成为集群模式并初始化express

const cluster = require('cluster');
const os = require('os');
if (cluster.isMaster) {
  for (let index = 0; index < os.cpus().length; index++) {
    cluster.fork();
  }
} else {
  const express = require('express');
  const app = express();
  const chatCat = require('./app');

  app.use(chatCat.session);
  app.use(passport.initialize());
  app.use(passport.session());
  app.use('/', chatCat.router);

  chatCat.ioServer(app).listen(app.get('port'), () => {
    console.log('chatCAT Running on Port:', app.get('port'));
  });
}

这是app \ index.js

const redis = require('redis').createClient;
const adapter = require('socket.io-redis');
let ioServer = app => {
const server = require('http').Server(app);
  const io = require('socket.io')(server);
  io.serveClient('transports', ['websocket']);
  let pubClient = redis(config.redis.port, config.redis.host, {
    auth_pass: config.redis.password
  });

  let subClient = redis(config.redis.port, config.redis.host, {
    auth_pass: config.redis.password,
    return_buffers: true
  });
  io.adapter(
    adapter({
      pubClient,
      subClient
    })
  );
    io.use((socket, next) => {
    require('./session')(socket.request, {}, next);
  });
require('./socket')(io, app);
  return server;
    }

这是socket / index.js

module.exports = (io, app) => {
  let allrooms = app.locals.chatrooms;
  io.of('/roomslist').on('connection', socket => {
    socket.on('getChatrooms', () => {
      console.log('allrooms', allrooms);
      socket.emit('chatRoomsList', JSON.stringify(allrooms));
    });

    socket.on('createNewRoom', newRoomInput => {
      if (!h.findRoomByName(allrooms, newRoomInput)) {
        allrooms.push({
          room: newRoomInput,
          roomID: h.randomHex(),
          users: []
        });
        socket.emit('chatRoomsList', JSON.stringify(allrooms));
        socket.broadcast.emit('chatRoomsList', JSON.stringify(allrooms));
      }
    });
  });
}

allrooms是列表室，在我的应用程序中，当用户登录时，用户将看到房间列表，但是有时他们看到它，有时却看不到，我调试并看到变量allrooms为空。我研究了一些教程，示例仅将redis适配器io.adapter(adapter({pubClient,subClient}));连接到套接字。我想知道套接字是否会自动处理它本身，还是必须手动使用pub / sub。因此，如果我必须手动发布/订阅，能否举个例子

使用发布和订阅redis.io-redis适配器扩展聊天应用程序效果不佳

0 个答案: