Shipping Software (FDE) · Systems
Queues, Caches & Retries
Three tools for reliable systems: message queues to decouple and absorb spikes, caches to cut latency and load, and retries with exponential backoff, jitter and idempotency keys so failures don't duplicate work.
Step 1 of 6 · Overview35 min read ·
Key idea
Prereqs: APIs & HTTP; Databases. Next: Cloud & Docker; Running an agent in production. Sources: AWS Builders' Library ('Timeouts, retries and backoff with jitter'); Stripe API docs on idempotent requests; Martin Kleppmann, *Designing Data-Intensive Applications*.Next: 1. Queues