As you can imagine, deploying a new technology to production can have issues :p

I've been dogfooding falcon (https://github.com/socketry/falcon) for the past week, which is built on top of async/Ruby. The HN hug of death + Reddit hug of death is a really great traffic test.

I think actually it's been pretty solid, but something caused the instance to run out of swap space, even though it had plenty of free memory. It's something I'll have to try and reproduce so I can understand how it's happening.