How would you explain Kafka Exactly-Once Semantics to a junior engineer?

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→Design a small subsystem that relies on Kafka Exactly-Once SemanticsOpen
→What would you monitor for Kafka Exactly-Once Semantics on-call?Open
→Compare Kafka Exactly-Once Semantics with a common alternative in a design reviewOpen

Parent context — Kafka Exactly-Once Semantics

Baseline: Idempotent producer + transactional writes (read-process-write in one transaction) give EOS within Kafka. End-to-end EOS needs idempotent sinks or outbox pattern.

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