記錄雲端、Kubernetes 與自架服務的實作經驗。把遇到的問題、排查過程和解法寫下來。https://jerrytech.me/zh-TWhttps://jerrytech.me/blog/2026/09/26/kubernetes-cpu-limit-throttling/https://jerrytech.me/blog/2026/09/26/kubernetes-cpu-limit-throttling/RD 回報延遲很高，儀表板上的 CPU 卻很閒。從 cgroup 的 100ms 配額，看 CPU limit 在 Node 上怎麼被執行，以及該怎麼處理。Sat, 26 Sep 2026 00:00:00 GMThttps://jerrytech.me/blog/2026/09/26/kubernetes-cpu-limit-throttling-lab/https://jerrytech.me/blog/2026/09/26/kubernetes-cpu-limit-throttling-lab/用一次性的本機叢集讀出 cpu.max 與 cpu.stat，做出成群請求被 throttle 的服務，再實測 GOMAXPROCS、增加副本、提高 limit、cpu.weight，以及 Node 忙碌時的差別。Sat, 26 Sep 2026 00:00:00 GMThttps://jerrytech.me/blog/2026/09/26/kubernetes-pod-scheduling/https://jerrytech.me/blog/2026/09/26/kubernetes-pod-scheduling/新副本一直 Pending，CPU 卻很閒。拆開 Scheduler 的篩選、評分與指派，找出它被什麼擋下。Sat, 26 Sep 2026 00:00:00 GMThttps://jerrytech.me/blog/2026/09/26/kubernetes-pod-scheduling-lab/https://jerrytech.me/blog/2026/09/26/kubernetes-pod-scheduling-lab/用一次性的本機叢集做出「CPU 很閒，新副本卻 Pending」的狀態，讀懂 FailedScheduling，再看每種改法讓 Pod 落到哪裡。Sat, 26 Sep 2026 00:00:00 GMThttps://jerrytech.me/blog/2026/09/21/kubernetes-deployment-reconcile/https://jerrytech.me/blog/2026/09/21/kubernetes-deployment-reconcile/從 Controller 的分工，理解 Watch、快取、工作佇列與滾動更新如何串起來。Mon, 21 Sep 2026 00:00:00 GMThttps://jerrytech.me/blog/2026/09/21/kubernetes-reading-map/https://jerrytech.me/blog/2026/09/21/kubernetes-reading-map/給已熟悉 Kubernetes 基礎操作，想進一步理解 Controller、排程、資源管理與容器執行機制的讀者。Mon, 21 Sep 2026 00:00:00 GMThttps://jerrytech.me/blog/2026/01/15/Upgrading-AWS-EKS-to-AL2023-Troubleshooting-Custom-Networking-and-nodeadm/https://jerrytech.me/blog/2026/01/15/Upgrading-AWS-EKS-to-AL2023-Troubleshooting-Custom-Networking-and-nodeadm/Upgrading AWS EKS to AL2023: Troubleshooting Custom Networking and nodeadmThu, 15 Jan 2026 00:59:55 GMThttps://jerrytech.me/blog/2025/03/15/kubernetes-yaml-to-helm-migration/https://jerrytech.me/blog/2025/03/15/kubernetes-yaml-to-helm-migration/如何解決資源接管衝突並平滑過渡到 Helm ChartSat, 15 Mar 2025 00:00:00 GMT