Repeated calls to a failing dependency can slow the entire application. Circuit breakers help control that failure behavior.
Evaluation approach
Opening a breaker must not silently remove security policy. Define permitted operations in advance.
Application example
During an outage, low-risk reads may continue while account changes wait. Probe recovery with limited traffic.
Limits and considerations
An availability pattern is not an authorization policy. Define the security outcome separately.
When does restricted mode end?
Restore traffic gradually where appropriate and verify that temporary exceptions do not become permanent. Records should explain which policy accepted each operation.
Checks and decisions
- Specify opening conditions
- Define restricted mode
- Test recovery
Sources
The primary references above provide the technical basis. Example workflows and evaluation suggestions are this publication’s explanations, not independent test results for a particular product.