advancedKafka Transactions & Exactly-Once Semantics
Does read_committed alone give you exactly-once semantics?
No — it only ensures consumers don't see uncommitted/aborted transaction data (Kafka's version of preventing a dirty read); it must be paired with a transactional producer to get the full atomic guarantee.
Ready to master this question?
Generate a complete walkthrough — background, the full answer in plain language, a working code example explained line by line, a real-world scenario, common mistakes, and how this same question gets asked in different ways.
Sign in to generate a response