https://laurance.dev/en/tags/apache-kafka/Recent content in Apache Kafka on Victor Laurance - Software EngineerHugoenFri, 09 Oct 2026 00:00:00 +0000https://laurance.dev/en/blog/kafka-java/Fri, 09 Oct 2026 00:00:00 +0000https://laurance.dev/en/blog/kafka-java/<p>What actually happens when your application executes <code>kafkaTemplate.send(...)</code>?</p> <p>If your answer is simply &ldquo;the message arrives in a queue and a worker processes it&rdquo;, you are operating Apache Kafka under the mental model of a traditional message broker like RabbitMQ or AWS SQS. Kafka is fundamentally different: it is an <strong>immutable, append-only, distributed commit log</strong>.</p> <p>This difference changes everything: how you partition workloads, how consumers scale, how you guarantee delivery order, and, most importantly, <strong>how you prevent duplicate processing or data loss when networks glitch or nodes crash</strong>.</p>