Chapter 4: Solving the Dual-Write Problem with Transactional Outbox Pattern
← Previous | Series hub | Next → Chapter 4: Eliminating the Dual-Write Nightmare When your Golang application migrates from a Monolith to Event-Driven Microservices, you will immediately face an architectural nightmare: the Dual-Write Problem. 1. What is the Dual-Write Problem? Answer-first: Dual-Write occurs when an app attempts to write to a Database and publish to a Message Broker (Kafka) simultaneously. Without a distributed transaction, network failures will cause the two systems to fall out of sync. ...