描述

kubernetes 集群报错，

E0304 02:22:20.213865    1799 kubelet_node_status.go:93] Unable to register node "node2" with API server: Post "https://127.0.0.1:6443/api/v1/nodes": read tcp 127.0.0.1:36596->127.0.0.1:6443: read: connection reset by peer
I0304 02:22:20.372571    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:21.052859    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:21.052879    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:21.372482    1799 kubelet.go:449] kubelet nodes not sync
E0304 02:22:21.515169    1799 controller.go:144] failed to ensure lease exists, will retry in 7s, error: Get "https://127.0.0.1:6443/apis/coordination.k8s.io/v1/namespaces/kube-node-lease/leases/node2?timeout=10s": context deadline exceeded
I0304 02:22:22.054231    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:22.372488    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:22.372519    1799 kubelet.go:449] kubelet nodes not sync
E0304 02:22:22.372552    1799 kubelet.go:2264] nodes have not yet been read at least once, cannot construct node object
I0304 02:22:22.472669    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:22.472697    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:23.053671    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:23.472866    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:24.053394    1799 kubelet.go:449] kubelet nodes not sync
I0304 02:22:24.472922    1799 kubelet.go:449] kubelet nodes not sync

解决防范

关闭防火墙

systemctl  stop firewalld

关闭交换分区（临时关闭）

swapoff -a