Highload • August 2, 2024 • 5 min read
Redis Caching Patterns That Hold Up in Production
Cache-aside, write-through, read-through, and the stampede protection that separates a cache from a foot-gun. With concrete Java examples.
Tag
#patterns
Core Patterns • May 22, 2024 • 4 min read
The Strangler Fig Pattern — Migrations That Actually Ship
How to replace legacy systems one slice at a time without a big-bang rewrite. The pattern, the gates, and the traps that stretch migrations into years.
Core Patterns • December 11, 2023 • 5 min read
Dead Letter Queues — Handling the Unhandleable
What DLQs are, why you must have one for every message consumer, and the operational patterns that keep bad messages from blocking the good ones.
Core Patterns • October 7, 2023 • 4 min read
Idempotency — A Practical Guide for Backend Engineers
Why every non-trivial backend needs idempotency keys, the common designs, and the mistakes that let duplicates slip through anyway.
Core Patterns • June 21, 2023 • 5 min read
Transactional Outbox — The Pattern, End to End
Why "save to DB, then publish to Kafka" is almost always wrong, and the outbox pattern that fixes it — with real Java code, schema, and production considerations.
Core Patterns • March 9, 2023 • 4 min read
Saga Patterns Explained — Transactions Without Transactions
How to coordinate operations across services that each have their own database. Orchestrated vs choreographed sagas, compensating actions, and when to use which.