Airbnb’s engineering team describes how they migrated to Kubernetes, evolved their clusters through three stages, and built a custom gRPC‑based expander for the Cluster Autoscaler to achieve flexible, cost‑effective, and automated scaling across hundreds of heterogeneous clusters.
Alibaba’s eight‑year Double 11 journey illustrates how the company tackled exponential business growth by inventing high‑availability middleware, precise capacity planning, unit‑based deployment, online stress testing, hybrid‑cloud elasticity, and intelligent runtime control to balance throughput, cost, and user experience during the midnight peak.
The article recounts Visual Studio Online’s 2013 launch outage, explains how Microsoft adopted multi‑region scaling, canary releases, continuous integration, and feature‑flag patterns to transition from Agile to DevOps, and shows how these practices dramatically improved service stability and accelerated product delivery.
This article shares two real‑world operations‑automation case studies—cloud‑based scaling on AWS with Chef and Jenkins, and a comprehensive automated deployment workflow for an advertising company's C++ RTB system, Java platform, and data clusters—highlighting processes, tools, and key lessons.
