What is the Bulkhead pattern, and how do you implement it?

Short answer: The Bulkhead pattern is a design pattern that isolates different parts of the system to prevent a failure in one part from affecting others. It divides a system into isolated pools, such as different threads, queues, or databases, so that a failure in one doesn't cascade and bring down other parts of the system. 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.