Observability & Reliability
Error Budget
The amount of unreliability permitted by a service objective over its defined window. For a request-based success objective, the allowed bad-event fraction is one minus the target. A budget is a decision tool, not permission to ignore failures, and its units must match the underlying indicator.
Reviewed
Sources
Free complete lesson
This definition and the complete practical lesson are free. The interactive reader loads the lesson examples without a membership.