intermediate~4h
Producer Reliability & Errors
Every setting in this module trades something for something. Understanding the trade, not just the property name, is what separates a config you copy-pasted from one you can defend in a design review.
Learning objectives
- Beginner: Default acks=1, no idempotence — acceptable for a dev/demo environment where occasional loss on broker failure is a non-issue.
- Intermediate: acks=all + min.insync.replicas=2 for a service where losing an order confirmation is a real business problem.
- Advanced: Full recommended config (§13.6) combined with Module 16's transactional publish, so a batch of related events is both duplicate-safe (idempotence) and atomic (transactions) — the two mechanisms solve different problems and compose.
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Producer Reliability & Errors