If no legal issues stand in your way and your uptime requirement warrant the invest, you can design and host your system across multiple providers. So instead of “just” going multi-datacenter within for example Azure, you go multi-datacenter across Azure, AWS, GCP, etc.
The problem with that, is that you now have to maintain virtual infrastructure in many different syntaxes. And features of one do not exist in another.
Plus things like cash and session do not cross those boundaries.
If no legal issues stand in your way and your uptime requirement warrant the invest, you can design and host your system across multiple providers. So instead of “just” going multi-datacenter within for example Azure, you go multi-datacenter across Azure, AWS, GCP, etc.
The problem with that, is that you now have to maintain virtual infrastructure in many different syntaxes. And features of one do not exist in another.
Plus things like cash and session do not cross those boundaries.
How? Each cloud provider manages their cross-regional solutions in very specific ways, and they certainly don’t cooperate with each other.