Why shared database in microservices is an anti-pattern and how to get out of it.
The Problem¶
- Tight coupling — schema changes break different services
- Deployment dependencies
- No technological freedom
- It’s not microservices — it’s a distributed monolith
How to Get Out¶
- Identify table ownership
- Create APIs for data access by different services
- Gradually migrate to Database per Service
- Use Strangler Fig pattern
Summary¶
Shared database is the most common mistake during transition to microservices. If you share the DB, you don’t have microservices.
Need Help with Implementation?¶
Our team has experience designing and implementing modern architectures. We’re happy to help.