#Distributed Systems

Database · calendar_today Apr 30, 2026 · schedule 1 min read

Distributed Locks with Redis: SET NX, Fencing and the Redlock Debate

The minimal correct lock and the four bugs hiding in simpler versions, fencing tokens for the expiry race, Redlock in two fair paragraphs, and the lock-free designs that beat locking entirely.

Architecture · calendar_today Apr 8, 2026 · schedule 5 min read

Event-Driven Architecture Without the 1 A.M. Chaos

Events vs commands, at-least-once reality, the transactional outbox in twenty lines, designing for eventual consistency, and schema evolution rules for events that outlive their authors.

Architecture · calendar_today Mar 28, 2026 · schedule 5 min read

Microservices: When They Actually Earn Their Keep

The three legitimate reasons to go distributed, the rent you pay from day one, and the survival rules — few and chunky, contracts not shared databases, async by default, platform before proliferation.