Kafka Message Loss and Duplication: A Complete Guide

Core Principles Kafka provides At-Least-Once delivery semantics by default, not exactly-once. This means: Messages may be duplicated but will never be lost Achieving no-duplication requires business-level idempotency Achieving no-loss requires proper configuration and mechanisms Part One: Message Loss Scenarios and Solutions Message loss occu ...

Posted on Wed, 19 Aug 2026 16:55:19 +0000 by figo2476