[quicksilver03]

What technique are you using for redirecting traffic to region B when region A is offline? And what happens if I have 2 nodes in a region and one goes offline?

[martianE]

For high-availability deployments, we leverage Fly.io's global Anycast network and DNS-based health checks. When a machine in region A goes offline, Fly's Anycast routing automatically directs traffic to healthy machines in other regions without manual intervention.

For intra-region redundancy, we deploy 2 nodes per region in HA mode. If one node fails, traffic is seamlessly routed to the other node in the same region through Fly.io's internal load balancing. This provides N+1 redundancy within each region, ensuring service continuity even during single-node failures.

[chrisweekly]

I recommend adding more details like this to the website. Knowing it's Fly.io under the hood gives me significantly more confidence in your service.

[getcrunk]

How much of a difference would automated health checks+programatic dns updates make vs any cast