https://xuezhaojun.github.io/tags/context/Recent content in Context on Zhao XueHugoen-usSat, 18 Apr 2026 00:00:00 +0000https://xuezhaojun.github.io/collections/go-concurrency/go-context/Sat, 18 Apr 2026 00:00:00 +0000https://xuezhaojun.github.io/collections/go-concurrency/go-context/一个 K8s admission webhook 上线后内存持续增长，pprof 显示大量 timer 泄漏。根因是 context.WithTimeout 的 cancel 函数没有被调用。从这个事故出发，拆解 context 的树状传播机制、四种派生函数、最佳实践与常见陷阱。