Service Level Objectives for Complex Microservices
Discover how SLOs work in complex microservices and common mistakes teams make.
Microservices architecture presents challenges in implementing service level objectives (SLOs). An SLO that works in a monolithic structure may fail in a distributed system. Teams often make mistakes by copying the same SLO across services, focusing on uptime instead of user experience, and ignoring the fan-out effect.
A practical SLO framework defines objectives based on user journeys. Each service must consider the availability of the services it depends on. Additionally, budget policies should be established to ensure the feasibility of SLOs. SLOs serve as a negotiation tool between engineering and product teams, establishing a shared goal instead of conflict during outages.