Multi-Region Architecture: When You Need It and What It Costs | Clickmasters

Compute replicates trivially; state doesn't. Choose per dataset: read replicas, regional pinning, or conflict-managed replication — each with correctness implications to design, not discover.

Regional evacuation drills on the calendar — an untested failover path fails precisely when needed; that's not cynicism, it's base rates.

Skipping the discipline this article describes until an incident, audit, or stalled project forces it — every practice above is cheaper adopted early than retrofitted under pressure.