Magento Migration: Shared DB, CDC, or Event Bus?
Answer-first: Three database strategies exist for Magento→Golang migration: (A) Shared DB — immediate compute win, dangerous as a final state; (B) CDC + Debezium — gradual DB separation without changing PHP code; (C) Full Event Bus — complete autonomy but requires Magento to publish every state change as an event. Option B is the recommended path for most teams. What You’ll Learn That AI Won’t Tell You Why Go running against Magento’s MySQL is faster at the compute layer but still bottlenecked at the EAV query layer — and what actually fixes it. The single deciding factor between CDC (Option B) and Event Bus (Option C): who owns the PHP Magento codebase. This post is part of the Composable Commerce Migration series — a step-by-step playbook for migrating Magento 2 to Go microservices. For the full migration execution guide, see Part 6: Phase 1 Strangler Fig. ...