Data Bricklaying Diary

Sep 25, 2026 · Backend Development

Beyond Retry: Designing Fault Tolerance from Failure Models to Disaster Recovery

This article explains why retry alone is insufficient for fault tolerance, detailing how to classify failures via fault models, apply appropriate mechanisms like timeouts and circuit breakers, design recovery paths targeting state convergence, define RTO/RPO for disaster recovery, and validate all assumptions through fault injection drills.