Resilience is a property of a system to handle failures gracefully.

In distributed systems, failure is not an exception; it’s the norm. Networks time out, disks fail, and power goes out.

Designing for resilience means:

  1. Redundancy: eliminating single points of failure.
  2. Isolation: preventing cascading failures.
  3. Observability: knowing when something is wrong.

By embracing failure, we build stronger systems.