Traffic will not be interrupted for a long period of time. However, brief interruptions may occur before reconnection, typically lasting a few seconds.

The upgrade of the control plane mainly involves the upgrade of add-ons, such as etcd, kube-apiserver, kube-scheduler, and kube-controller-manager. The rolling upgrade is performed. In this way, the existing pods will be deleted only if new pods start as expected. In scenarios where custom add-ons or system add-ons connect to kube-apiserver, transient traffic interruption may occur because kube-apiserver uses a persistent‑connection mechanism. In this case, a quick retry may be required.

Last updated: 2026.07.23 14:31:45

Public security network record in Beijing: No. 11010802032137