Real-Time Data Propagation with HBase: Exploring Change Data Capture and Its Challenges

Change Data Capture (CDC) in HBase enables tracking and capturing data changes in real time and making them available for other systems. HBase, a distributed non-relational data store, uses its Write Ahead Log (WAL) to implement CDC. This process supports various business use cases like ad campaigns and e-commerce transactions at Flipkart. The post discusses the architecture, methods of data propagation—Mutation and Cell Based Change Propagation—filters applied, and the challenges encountered in using these methods, providing insights into efficient data tracking and propagation.