root@k8s-master1 \~\]# kubectl get cs NAME STATUS MESSAGE ERROR controller-manager Healthy ok scheduler Healthy ok etcd-1 Healthy {"health":"true"} etcd-0 Healthy {"health":"true"} etcd-2 Unhealthy HTTP probe failed with statuscode: 503 ETCDCTL_API=3 /opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints="https://192.168.233.91:2379,https://192.168.233.93:2379,https://192.168.233.94:2379" endpoint health --write-out=table 1.将有故障的etcd节点remove出集群: ETCDCTL_API=3 /opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints="https://192.168.233.91:2379,https://192.168.233.93:2379,https://192.168.233.94:2379" --write-out=table member list cf4f326398a30bd2 86ec40d44e54cf0a /opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints="https://192.168.233.91:2379,https://192.168.233.93:2379,https://192.168.233.94:2379" member remove 故障节点的id 2、来到故障节点 rm -rf /var/lib/etcd/default.etcd/member/ 修改etcd配置文件,将下面new修改为: vim /opt/etcd/cfg/etcd 修改前: ETCD_INITIAL_CLUSTER_STATE="new" 修改后: ETCD_INITIAL_CLUSTER_STATE="existing" 3、重新加入etcd集群： /opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints="https://192.168.233.91:2379,https://192.168.233.93:2379,https://192.168.233.94:2379" member add etcd-2 --peer-urls=https://192.168.233.94:2380 4、重启etcd故障节点