A schema registry manages data schemas for Kafka messages — defining and enforcing the structure of event data, enabling schema evolution safely. It's important for data consistency and compatibility between producers and consumers.
ఇది ఎందుకు ముఖ్యమైనది
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Kafka messages are just bytes → producers and consumers must AGREE on the data structure:
→ without management → producers might change the format, breaking consumers
→ how do consumers know the structure? how do you change it safely?
→ a SCHEMA REGISTRY manages this.