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Debezium vs Managed CDC: How to Actually Decide Between Build and Buy

Most "Debezium vs managed tool" articles get the question wrong. They frame it as a product bake-off, feature grid included, and declare a winner. But if you've actually run change data capture in production, you know the real decision isn't which tool captures a transaction log better. They mostly read the same logs the same way. The real decision is who operates everything that sits around the capture, and whether that work is a good use of your team's time. That's a build-vs-buy question, not a product question. This post is a framework for answering it for your own situation. First, let's kill an outdated assumption A lot of Debezium criticism floating around is two or three years stale, and if you repeat it in 2026 you'll get corrected fast. So let's set the record straight before we compare anything. Debezium is no longer just “the thing you run with Kafka Connect.” In recent Debezium 3.x releases, the project has become much more flexible than the old tutorials suggest. Today, you have several deployment options: Kafka Connect , the classic setup, which gives you the Kafka ecosystem, distributed fault tolerance, durable schema history, and access to Kafka Connect sink connectors. Debezium Server , a standalone application that streams changes to systems like Amazon Kinesis, Google Cloud Pub/Sub, Apache Pulsar, Redis Streams, or NATS JetStream without requiring Kafka. Debezium Management Platform , which builds on Debezium Server and the Debezium Operator to provide a higher-level way to configure and manage CDC pipelines in Kubernetes-style environments. Embedded usage , where you run Debezium Engine inside your own application. Recent Debezium releases also added framework support such as the Quarkus extension. A few more things are worth knowing so the comparison is fair: Kafka 4.x runs in KRaft mode, and ZooKeeper mode has been removed. “You need to babysit ZooKeeper” is no longer true for a modern Kafka deployment. Debezium's default remains at-least-once

2026-07-08 原文 →