我的两个集群节点有时会Kubelet stopped posting node status进入。kubectl describe node在该节点的日志中我看到：
Dec 11 12:01:03 alma-kube1 kubelet[946]: E1211 06:01:03.166998 946 controller.go:115] failed to ensure node lease exists, will retry in 6.4s, error: Get https://192.168.151.52:6443/apis/coordination.k8s.io/v1beta1/namespaces/kube-node-lease/leases/alma-kube1?timeout=10s: read tcp 192.168.170.7:46824->192.168.151.52:6443: use of closed network connection
Dec 11 12:01:03 alma-kube1 kubelet[946]: W1211 06:01:03.167045 946 reflector.go:289] object-"kube-public"/"myregistrykey": watch of *v1.Secret ended with: very short watch: object-"kube-public"/"myregistrykey": Unexpected watch close - watch lasted less than a second and no items received
Dec 11 12:01:03 alma-kube1 kubelet[946]: W1211 …