SLO error budget exhaustion from elevated burn rate

Error budget burn rate exceeds sustainable rate (burn_rate = current_error_rate / allowed_error_rate). A burn rate of 2.0 means error budget will be exhausted in half the SLO window time. For 99.9% SLO over 30 days, allowed error rate is 0.1%; if current error rate is 0.2%, burn rate is 2x and budget exhausts in 15 days.

Calculate burn rate using: burn_rate = current_error_rate / (1.0 - slo_target). Calculate hours_remaining = (slo_window_days * 24) / burn_rate. If burn rate is elevated, investigate error sources and review recent changes to reduce error rate before budget is fully consumed.