Top Architect
Mar 30, 2023 · Backend Development
Understanding Kafka Idempotent Producer and How to Prevent Message Duplicates
This article explains why message duplication occurs in Kafka, describes the three delivery semantics, and provides practical solutions—including idempotent producers, transactions, and consumer-side idempotence—along with configuration tips and code examples to achieve exactly‑once delivery.
JavaKafkaMessage Duplication
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