kubernetes运维其他常见问题
1 K8S主机messages日志中，出现node "xxx" not found，原因是etcd运行异常
现象：
1、K8S节点运行异常；
2、K8S主机/var/log/messages日志中，出现node "xxx" not found，并不停地打印该日志：
May 06 11:27:22 cqcsk8s2 kubelet[23408]: E0506 11:27:22.679189 23408 kubelet.go:2183] node "cqcsk8s2" not found May 06 11:27:22 cqcsk8s2 kubelet[23408]: E0506 11:27:22.779409 23408 kubelet.go:2183] node "cqcsk8s2" not found May 06 11:27:22 cqcsk8s2 kubelet[23408]: E0506 11:27:22.834362 23408 controller.go:136] failed to ensure node lease exists, will retry in 7s, error: Get "https://10.18.xx.xx:6443/apis/coordination.k8s.io/v1/namespaces/kube-node-lease/leases/cqcsk8s2?timeout=10s": dial tcp 10.18.xx.xx:6443: connect: connection refused May 06 11:27:22 cqcsk8s2 kubelet[23408]: E0506 11:27:22.879617 23408 kubelet.go:2183] node "cqcsk8s2" not found May 06 11:27:22 cqcsk8s2 kubelet[23408]: E0506 11:27:22.979850 23408 kubelet.go:2183] node "cqcsk8s2" not found May 06 11:27:23 cqcsk8s2 kubelet[23408]: I0506 11:27:23.037403 23408 kubelet_node_status.go:70] Attempting to register node cqcsk8s2 May 06 11:27:23 cqcsk8s2 kubelet[23408]: E0506 11:27:23.037924 23408 kubelet_node_status.go:92] Unable to register node "cqcsk8s2" with API server: Post "https://10.18.xx.xx:6443/api/v1/nodes": dial tcp 10.18.xx.xx:6443: connect: connection refused May 06 11:27:23 cqcsk8s2 kubelet[23408]: E0506 11:27:23.080005 23408 kubelet.go:2183] node "cqcsk8s2" not found May 06 11:27:23 cqcsk8s2 kubelet[23408]: E0506 11:27:23.180238 23408 kubelet.go:2183] node "cqcsk8s2" not found May 06 11:27:23 cqcsk8s2 kubelet[23408]: E0506 11:27:23.280433 23408 kubelet.go:2183] node "cqcsk8s2" not found May 06 11:27:23 cqcsk8s2 kubelet[23408]: E0506 11:27:23.380692 23408 kubelet.go:2183] node "cqcsk8s2" not found May 8 23:22:34 cqcsk8s1 kubelet: E0508 23:22:34.716068 28838 kubelet_node_status.go:442] Error updating node status, will retry: error getting node "cqcsk8s1": Get "https://10.18.xx.xx:6443/api/v1/nodes/cqcsk8s1?timeout=10s": dial tcp 10.18.xx.xx:6443: connect: connection refused |
3、执行kub
kubernetes运维其他常见问题
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