high-availability

2 articles

Diagram showing primary and replica database regions with a failover path highlighted

Multi-Region Database Failover: What Actually Breaks in Production

Multi-region failover looks simple on an architecture diagram — the reality involves replication lag, split-brain writes, and DNS caches that refuse to cooperate.

Aug 8, 2026·5 min read

Architecture

Cell-Based Architecture for Resilient Distributed Systems

Design cell-based architectures that isolate failures to small blast radii, enable independent scaling, and prevent cascading outages across distributed systems.

Apr 25, 2023·4 min read

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