AWS says data center overheating in North Virginia disrupts services

I thought cooling was pretty much pre-planned in any data center, and you simply don't install more stuff than you can cool?

So did some cooling equipment fail here or was there an external reason for the overheating? Or does Amazon overbook the cooling in their data centers?

Could someone explain to me why they don't build these things near oceans? Like nuclear plants that need plenty cooling capacity too

Two loop cycle with heat exchanger to get rid of the heat

Related:

AWS EC2 outage in use1-az4 (us-east-1)

https://news.ycombinator.com/item?id=48057294

I bet post-mortem will say vibe coding confused fahrenheit and celsius, we run too hot...