AUTH command have been sent too many times

[zhangkai803]

The cpu load of my redis server recently reached 81%. After investigation, I found that the qps of the publish command and the auth command is highly coincident. I suspect that my redis connection is not reused. So how can i reuse redis connection in my socket.io application? And could it be something else?

[zhangkai803]

My application code:

const MyRedisConfig = {host: "127.0.0.1", port: "6379", password: "MyPassword"}
const app = require('express')();
const server = require('http').Server(app);
const io = require('socket.io')(server, {perMessageDeflate: false});
const adapter = require('socket.io-redis');
const redis = require('redis');

const myRedis = redis.createClient(MyRedisConfig);
myRedis.auth(MyRedisConfig.password);

const myAdapter = adapter({pubClient: myRedis, subClient: myRedis});
io.adapter(myAdapter);
io.engine.pingTimeout = 30000

io.on(
    'connection',
    function (socket) {
    socket.on('chat', function (msg) {
        console.log(`[${socket.id}] chat ${msg}`)
    })
})

const port = process.env.PORT || 8600;
const host = process.env.HOST || '127.0.0.1'
server.listen(port, host);