For my WebRTC based app, I need a signaling server to negotiate the connection descriptions between the peers.
The WebRTC samples I found are using socket.io, but as far as I understand it, this approach wouldn’t work if I scale the app horizontally, as it relies on one server instance mediating between the clients. Though I haven’t set up a cluster yet, I want to make sure this will be possible in the future.
The simplest approach would be to use a regular collection to store events and subscribe to them, but this causes additional load on the database server. This is how Rocket Chat seems to do it, according to https://github.com/RocketChat/Rocket.Chat/wiki/Real-time-messaging-APIs
I found some community packages for messaging like raix:eventddp and yuukan:streamy, but these don’t seem to support scaling either.
lepozepo:streams (based on meteorstreams) should, but the docs of meteor streams refer to the meteor cluster package which in turns says it is obsolete now due to Meteor’s collections. Which is a bit confusing since I always thought that meteor cluster would be the way to go for scaling.
I also read that people are using REDIS servers for messaging, but this would require me to set-up an additional server.
How are you guys doing this? Is there any other approach I am missing?