Sohu Tech Products
Dec 22, 2021 · Cloud Native
Zero‑Downtime Upgrade of Large‑Scale Kubernetes Clusters from v1.10 to v1.17
This article details the challenges, strategies, and step‑by‑step procedures for upgrading a 1,000‑node Kubernetes cluster from version 1.10 to 1.17 without service interruption, covering compatibility checks, in‑place versus replacement upgrades, container‑restart avoidance, pod eviction handling, and TCP connection issues.
CNCFVersion Skewcluster upgrade
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