Cianplan

Level 3: Distributed systems · L3.2 Timeouts, retries, idempotency, rate limiting, circuit breakers

Idempotency in depth

Implement idempotency keys with storage, TTL and response replay.

12 min · Pro

What you take away

  • The idempotency window must outlive every retry that could still deliver the same request.

And 3 more inside the class, in Pro.

How the class is laid out

  1. The problem
  2. Check your understanding