多个Express Server不发送socket.io消息

Question

我有2个运行socket.io的快速服务器，并使用Redis存储socketID。我有一个设备1连接到快递服务器1，另一个设备2连接到快递服务器2。当我尝试从设备1向设备2发送消息时，我注意到socket.io服务器确实选择了正确的套接字ID，但另一个设备却没有似乎收到消息

我不确定使用多个节点时如何发送消息。这是下面的代码：

var socketIO = require('socket.io');
var io = socketIO(server);
var client;

// Create a Redis client
const redisPort = redisConfig.redisPort,
    redisHostname = redisConfig.redisHost,
var redis = require('redis');

var RedisStore = require('socket.io-redis');
var adapter = RedisStore({  host: redisHostname, redisPort });
io.adapter(adapter);
client = adapter.pubClient;


// When a client connects
io.sockets.on('connection', function (socket) {
    // Log in a user with their provided username
    socket.on('login', function (data) {



 var timerCount = 0;
        var login = function () {
client.get('user:' + data.rec, function (err, socketId) {
                        try {
                            io.to(socketId).emit('message', data);
                        } catch (err) {
                            if (timerCount === 100) {
                                console.log("Waiting for user to join chat timed out!");
                            }
                            // Cant find user - user has not joined yet
                            console.log(err);
                            timerCount++;
                            setTimeout(login, 2000);
                        }
                    });

}

├─┬ socket.io@2.0.4
│ ├── socket.io-adapter@1.1.1
│ ├─┬ socket.io-client@2.0.4
│ │ ├── socket.io-parser@3.1.2 deduped
│ └─┬ socket.io-parser@3.1.2
├─┬ socket.io-redis@5.2.0
│ ├── socket.io-adapter@1.1.1 deduped