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Re:10M Concurrent Websockets by bcardarella on Saturday March 19, 2016 @04:57PM (#11320417)
The headline can be misleading, these are not active real-world socket connections. According to the article they are mostly idle, with pings every five minutes.

For comparison, Chris McCord (the creator of the Phoenix framework) did some work on getting 2M concurrent connections with real-world(ish) data being broadcast across all nodes: http://www.phoenixframework.org/blog/the-road-to-2-million-w...

Re:10M Concurrent Websockets by laylomo on Saturday March 19, 2016 @10:08PM (#11321454)
And if I recall correctly, the 2 million figure was just an artificial limit that they hit due to the configuration settings during the test, since it just "seemed like a really big number" at the time. In theory, it could probably go even higher.