Unable to catch ECONNRESET error and it is causing app to crash

Question

I need help with socket.io-redis-adapter as their document on Client Error Handling seems to be gone.

1. I do not know how this error with Redis occur, has it got to do with Redis pub/sub? My redis server is in working error through out.

2. I've searched through forums and github. I've followed the recommended actions as follows. However, I'm still not able to catch the errors below, and it's causing my app to crash. My redis servers are all well and not disconnected at that time as I have other services using same server.

Can anyone provide me with some directions?

"@socket.io/redis-adapter": "^7.0.0",

"@socket.io/redis-emitter": "^4.1.0",

Catching error for both sub and pub client - Done ✅

// I'm using ioredis and I believe ioredis will auto handle reconnection?
pubClient.on("error", (err) => {
    debug(`REDIS ADAPTOR DISCONNECTED ON pubClient %O`, err)
})
subClient.on("error", (err) => {
    debug(`REDIS ADAPTOR DISCONNECTED ON subClient %O`, err)
})

Catch error on adapter - Done ✅

// But i think this is not working to catch errors ❌❌❌
io.of('/').adapter.on('error', function(error){

    debug('error: ', error);
    
});

Ping to keep connection alive - Done ✅

setInterval(() => {
    // emitter.of('/user').emit("time", new Date);
    io.of('/user').emit("time", new Date())
  }, 300000);

I've also tried using both node-redis and ioredis and both end up with same error below Done ✅

 Manage to catch this with redis on error event ✅
 socket REDIS ADAPTOR DISCONNECTED ON pubClient Error: read ECONNRESET
  socket     at TCP.onStreamRead (internal/stream_base_commons.js:209:20) {
  socket   errno: -54,
  socket   code: 'ECONNRESET',
  socket   syscall: 'read'
  socket } +5h
  socket error:  Error: read ECONNRESET
    at TCP.onStreamRead (internal/stream_base_commons.js:209:20) {
  errno: -54,
  code: 'ECONNRESET',
  syscall: 'read'
} +0ms

// Unable to catch this event ❌❌❌
// I think this causes my app to crash

events.js:292
      throw er; // Unhandled 'error' event
      ^

Error: read ECONNRESET
    at TCP.onStreamRead (internal/stream_base_commons.js:209:20)
Emitted 'error' event on RedisAdapter instance at:
    at Redis.onError (/Users/Myname/Work/expressjs/api.singa.sg/node_modules/@socket.io/redis-adapter/dist/index.js:61:22)
    at Redis.emit (events.js:327:22)
    at Redis.EventEmitter.emit (domain.js:486:12)
    at Redis.silentEmit (/Users/Myname/Work/expressjs/api.singa.sg/node_modules/ioredis/built/redis/index.js:544:26)
    at Socket.<anonymous> (/Users/Myname/Work/expressjs/api.singa.sg/node_modules/ioredis/built/redis/event_handler.js:190:14)
    at Object.onceWrapper (events.js:422:26)
    at Socket.emit (events.js:327:22)
    at Socket.EventEmitter.emit (domain.js:486:12)
    at emitErrorNT (internal/streams/destroy.js:106:8)
    at emitErrorCloseNT (internal/streams/destroy.js:74:3)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  errno: -54,
  code: 'ECONNRESET',
  syscall: 'read'
}

This is snippet of how my server is created;

....server declaration codes
const { createAdapter } = require("@socket.io/redis-adapter");
const Redis = require("ioredis");
const pubClient = new Redis({
    host: process.env.SOCKET_IO_REDIS_HOST,
    port: process.env.SOCKET_IO_REDIS_PORT,
    username: process.env.SOCKET_IO_REDIS_USER,
    password: process.env.SOCKET_IO_REDIS_PASSWORD,
    db: process.env.SOCKET_IO_REDIS_DB,
})
const subClient = pubClient.duplicate();

const adapter = createAdapter(pubClient, subClient)
io.adapter(adapter)

pubClient.on("ready", () => {
    debug(`REDIS ADAPTOR CONNECTED`)
})

pubClient.on("error", (err) => {
    debug(`REDIS ADAPTOR DISCONNECTED ON pubClient %O`, err)
})
subClient.on("error", (err) => {
    debug(`REDIS ADAPTOR DISCONNECTED ON subClient %O`, err)
})
pubClient.on("end", (err) => {
    debug(`REDIS ADAPTOR ENDED %O`, err)
})

setInterval(() => {
    // emitter.of('/user').emit("time", new Date);
    io.of('/user').emit("time", new Date())
  }, 300000);



io.of('/').adapter.on('error', function(error){
    debug('error: ', error);
});