UCloud Tech

Mar 23, 2018 · Operations

How UCloud’s Application Hot‑Patch Framework Enables Zero‑Downtime Fixes

This article explains the design, components, and implementation of UCloud's application hot‑patch framework, covering its motivation, safety checks, multi‑thread support, and how the Creator, Loader, and Core Runtime work together to apply, manage, and roll back patches without restarting services.