Kafka Avro Schema Evolution: Understanding Forward, Backward, and Full Compatibility
Avro Schema Evolution: Understanding Forward, Backward, and Full Compatibility When working with event-driven architectures and streaming platforms like Kafka, schema evolution is crucial for maintaining system stability while allowing your data models to grow. Let's explore how Avro schema compatibility works using a real-world example from a sales order system. The Challenge: Evolving Return Status Enums Consider this Avro schema field that tracks return order statuses: { "doc": "Status code about this line in the Sales Order.", "name": "return_status", "type": [ "null", { "type": "enum", "name": "LineReturnStatus", "symbols": [ "NEW", "EXPECTED", "REGISTERED", "QUARANTINE", "RECEIVED", "INVOICED", "CANCELLED...