Random Bulletin

Jun 28, 2026 · Operations

Backlog Monitoring at 10 Million QPS: From Manual Checks to SLO‑Driven Automation

At 10 million QPS, message backlog can silently grow for hours, turning minutes of lag into hundreds of millions of undelivered messages; this article walks through a six‑stage evolution—from manual command‑line checks to SLO‑driven predictive monitoring—detailing metrics, pitfalls, and tool choices for a robust, multi‑dimensional alert system.