Debezium Blog
The modern data landscape bears little resemblance to the centralized databases and simple ETL processes of the past. Today’s organizations operate in environments characterized by diverse data sources, real-time streaming, microservices architectures, and multi-cloud deployments. What began as straightforward data flows from operational systems to reporting databases has evolved into complex networks of interconnected pipelines, transformations, and dependencies. The shift from ETL to ELT patterns, the adoption of data lakes, and the proliferation of streaming platforms like Apache Kafka have created unprecedented flexibility in data processing. However, this flexibility comes at a cost: understanding how data moves, transforms, and evolves through these systems has become increasingly challenging.
Understanding data lineage
Data lineage is the process of tracking the flow and transformations of data from its origin to its final destination. It essentially maps the "life cycle" of data, showing where it comes from, how it’s changed, and where it ends up within a data pipeline. This includes documenting all transformations, joins, splits, and other manipulations the data undergoes during its journey.
At its core, data lineage answers critical questions: Where did this data originate? What transformations has it undergone? Which downstream systems depend on it? When issues arise, where should teams focus their investigation?
A year ago we began this incredible journey to create a modern approach to Change Data Capture. We had the desire to create a tool where you can focus on your data, defining how it flows from sources to destinations, with a pipeline-based approach. All this paired with a new and modern user interface to simplify interaction with it.
We named it Debezium Management Platform, or if you prefer, just Debezium Platform.
We are excited that Debezium 3.1 is the first official release of this years-long effort.
When it comes to replicating operational data for analytics, Change Data Capture (CDC) is the gold standard. It offers scalability, near real-time performance, and captures all data modifications, ensuring your analytical datasets are always up-to-date. Debezium is a leading tool in this space, connecting to a wide range of databases and exporting CDC events in various formats like JSON and Avro, making integration with diverse systems a breeze.
While Debezium itself is a Java-based project, the data engineering world increasingly relies on Python. This blog post demonstrates how to leverage Debezium within a Python environment, using pydbzengine. We’ll explore how to use these technologies to build a robust and scalable CDC solution.
In this post, we are going to talk about a CDC-CQRS pipeline between a normalized relational database, MySQL, as the command database and a de-normalized NoSQL database, MongoDB, as the query database resulting in the creation of DDD Aggregates via Debezium & Kafka-Streams.
