Nodejs cluster

[lay3r]

Why are you using pm2 shards and not nodejs cluster?

[howardchung]

Pm2 has nicer logging and management features. But aside from that there's not much reason

[lay3r]

Then you have to look at the logs of each cluster

[lay3r]

On the other hand, pm2 will automatically restart the cluster, got you

[lay3r]

https://socket.io/docs/v4/pm2/

You can pass everything through one port

[howardchung]

Right now nginx handles the connections as a gateway and then delegates to the appropriate shard running on separate ports

[lay3r]

I can't figure out from your code how a client connects to the same socket session as another client in cluster mode. The roomid is linked to the shard? Because I can't see sticky sessions.

[howardchung]

The SHARD parameter is computed from the room name and passed in the URL. Nginx handles directing the traffic to the correct port/instance

[lay3r]

What about connecting users to session through redis?

[howardchung]

That could probably work too but requires a dependency on Redis