Authors’ Cut—Actionable SLOs Based on What Matters Most

Service Level Objectives (SLOs) are powerful tools for maintaining user experience by identifying and addressing issues before they become significant, yet they can be daunting for teams unsure how to implement or debug them. Observability enhances the effectiveness of SLOs by utilizing event data to provide detailed insights, helping teams manage alert floods and focus on imminent problems. Traditional time-based SLOs often lack granularity and are hard to debug, whereas event-based SLOs offer a more precise approach by qualifying events based on specific conditions, such as error rates and response times. This method allows teams to ask novel questions without additional instrumentation, facilitating fast problem resolution even for unexpected issues. Unlike conventional monitoring alerts that require predefined conditions, SLOs offer a broader perspective, enabling engineers to uncover and address nuanced user experience issues. This approach was notably effective for Honeycomb, where SLOs detected user-impacting problems that were missed by traditional monitoring. For more comprehensive insights, interested individuals are encouraged to explore further resources such as webinars and related literature.