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Lessons (4)

• Big Data: ETL, Warehouses and Streaming

  … Record lineage, schema evolution, data quality checks and the age of the newest successful dataset. A dependable analytics …

• Kafka Producers

  … easy Larger, no enforced schema Avro Compact, schema evolution rules Needs a schema registry Protobuf Compact, typed, great …

• CQRS & Event Sourcing

  … projections at any time; you pay with complexity, schema evolution and snapshots. - Use them where the domain truly …

• Service Communication: Sync vs Async

  … 1 }] } } 💡 Give every event an ID (for idempotency), a type , a version (for schema evolution) and a timestamp …