[root@k8s-master01 ~]# kubectl get po,svc -n kube-system -o wide
[root@k8s-master01 ~]# kubectl exec -it -n kube-system etcd-k8s-master01 sh
# export ETCDCTL_API=3
# alias etcdctl='etcdctl --endpoints=https://127.0.0.1:2379 --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key'
# etcdctl member list
3a67291a5caf7ac3, started, k8s-master01, https://172.16.229.126:2380, https://172.16.229.126:2379
bae945fddfb47140, started, k8s-master02, https://172.16.229.127:2380, https://172.16.229.127:2379
8603a002380ffd4e, started, k8s-master03, https://172.16.229.128:2380, https://172.16.229.128:2379
--删除坏的master03节点：
# etcdctl member remove 8603a002380ffd4e
# reset并join。
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