Redundancy Patterns and Strategies in Distributed Systems
Distributed Systems Series — Part 4.3: Fault Tolerance & High Availability Redundancy Is the Foundation, Not the Solution Post 4.1 established the taxonomy of failures — crash-stop, crash-recovery, omission, timing, gray, Byzantine, and correlated. Post 4.2 established the distinction between fault tolerance (correctness under failure) and high availability (uptime). This post addresses the structural mechanism … Read more