Blog81.1K views860 votes0 replies3,938 following
Exactly‑Once Semantics in Kafka: Eliminating Duplicate Processing in Stream Pipelines
Kafka’s Exactly‑Once Semantics (EOS) guarantees that each record is processed once, even across failures. This post walks through the problem, the EOS mechanism, how to enable it, a hands‑on Java example, trade‑offs, and how to verify your setup.
apachekafka