CDC Patterns

Concepts: paCdc

What They Want to Hear 'I use WAL-based CDC because it has near-zero impact on the source database. Debezium reads the Postgres WAL or MySQL binlog, streams change events to Kafka, and my pipeline consumes from Kafka to apply inserts, updates, and deletes to the target. I avoid trigger-based CDC because triggers add latency to every write on the source and are fragile at scale.' This is the answer that shows you have run CDC in production and understand the operational tradeoffs.