[nivertech]

"Few tens of millions of open websockets" is more than Slack and Discord combined, not?

BTW: we were the first who did 1M long-living connections load test with Cowboy on a single EC2 instance back in 2011. And 3M long-polling HTTP requests on a single beefy physical server.

It was before WhatsApp upstreamed their optimizations and before Phoenix team made it easy.

[gamache]

I imagine both Slack and Discord have much higher numbers than this, as well as a very different workload (they're doing chat, we're not).

I don't want to give the impression that this is happening on a single server, either! I did the cowardly thing and threw more boxes at the problem. :)