Summary
At QCon London 2026, Julian Wreford and Oli Lane from Gearset presented how distributed tracing and SLOs can bridge asynchronous observability gaps. They demonstrated a shift from traditional queue-size metrics to latency-based alerts, which significantly improved their incident response. Key technical insights included leveraging OpenTelemetry trace state for precise asynchronous duration tracking and utilizing 'wide events' to identify and eliminate architectural inefficiencies.
Why It Matters
This article is crucial for a technical IT operations leader because it highlights practical, modern approaches to observability in complex, asynchronous systems. By adopting distributed tracing and SLOs, leaders can move beyond reactive monitoring to proactive incident prevention and faster resolution. The specific mention of OpenTelemetry trace state and 'wide events' offers actionable technical strategies for gaining deeper insights into system performance and identifying hidden architectural waste, ultimately leading to more resilient and efficient operations. This directly translates to reduced downtime, improved service quality, and better resource utilization, all critical concerns for an IT operations leader.
