What is the Bulkhead pattern, and how would you implement it in microservices?

Short answer: The Bulkhead pattern is a resilience design pattern that isolates failures to prevent them from spreading and affecting other parts of the system. The idea is to create compartments or isolated pools within the system, so that failure in one compartment doesn’t bring down the entire service. Implementation:

Real-world example (ShopNest)

ShopNest splits Catalog, Cart, Order, and Payment into services so teams can deploy catalog changes without redeploying payments.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.