In “region, region, sub-region”, which cities are specifically sub-regions?
In particular, I don’t know where US, US2, US3, US4, EU, and EU-2 are.
Also, how are sub-regions determined?
Hi @pukukyunu
Welcome to the Auth0 Community!
Great question! Let me ask the team, and I will get back to you as soon as I have an answer!
Thank you!
Dawid
Hi @pukukyunu
I found this article regarding our infrastructure → A Look at Auth0 Cloud Architecture: 5 Years In.
In this case, we use two AWS regions: us-west-2 (our primary) and us-west-1 (our failover). Under normal circumstances, all requests will go to us-west-2, served by three separate availability zones.
This is how we achieve high availability: all services (including databases) have running instances on every availability zone (AZ). If one AZ is down due to a data center failure, we still have two AZs to serve requests. If the entire region is down or having errors, we can update Route53 to failover to us-west-1 and resume operations.
Regarding the cities themselves, I’m waiting for confirmation.
Thanks
Dawid