Core AWS services use it too. Even if you are hosted in another region, you can still be affected by a US-East 1 outage
But even then , the load balancer needs to run somewhere. Which becomes a new single point of failure.
I’m sure someone smarter than me has figured this out.
It's basically a wash for almost all organizations for twice the cost and effort.
But where does the load balancer actually run. Does load balancer main run on AWS, and load balancer backup on Oracle?
Looking at Azure and GitHub in particular. ;)
There were enough "surprisingly control-plane" IAM operations in the AWS services that I dealt with, so we had to exercise extreme caution during outages.
Even if I were the stupidest and least curious engineer around (and I was far from it), that's basically irrelevant to what you're scolding me for here…
As part of a team with both software development and operational responsibilities, like most teams at AWS, I had to deal not only with the consequences of my own imperfect knowledge, but also with the imperfect knowledge of my coworkers past and present.