SLOs, SLIs, and Error Budgets
A practical guide to defining service level objectives, choosing meaningful service level indicators, and managing error budgets for production services.
SLOs, SLIs, and Error Budgets
A practical guide to defining service level objectives, choosing meaningful service level indicators, and managing error budgets for production services.
What is a Service Level Indicator (SLI)?
An SLI is a quantitative measure of some aspect of the level of service being provided. It is a carefully defined metric that captures how well a service is performing from the user's perspective. Common SLIs include request latency, error rate, availability, and throughput. SLIs are expressed as a ratio: good events / total events.
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