What Is Debezium?
Debezium is an open-source distributed platform for change data capture (CDC). It provides a scalable and reliable way to capture and stream changes from databases (such as MySQL, PostgreSQL, and MongoDB) to event streams in Apache Kafka. Debezium can track changes to data in real-time, making that data available for streaming and batch processing downstream.
The platform is designed to be easy to use, with a minimal setup and configuration required. Debezium captures changes to data by monitoring the database’s transaction logs and capturing changes as they occur. It can handle large amounts of data and high write volumes, making it suitable for high-performance systems. Debezium provides exactly-once processing guarantees, ensuring that changes are captured and delivered without duplication.
Debezium can be used in various scenarios where capturing changes to data in real-time is essential. Here are a few examples:
- Data replication: Debezium can replicate changes from a source database to a target database in real-time, providing a near-instantaneous copy of the data.
- Event streaming: Debezium can stream changes to data as events, which event-driven applications can process in real-time.
- Data integration: Debezium can integrate data from multiple databases into a single event stream, making it easier to build applications that use data from various sources.
- Auditing: Debezium can be used to audit changes to data by capturing changes as they occur and making them available for analysis and reporting.
To use Debezium, you’ll need to configure it to connect to your database and start capturing changes. You’ll also need to set up Apache Kafka and configure Debezium to send changes to a Kafka topic. From there, you can write consumers to process the data and integrate it into your applications as needed.