备份db
tar -zcvf etcd.tar.gz /var/lib/etcd/
恢复故障机器
拷贝备份好的etcd.tar.gz rm -rf /var/lib/etcd export ETCDCTL_API=3 etcdctl snapshot restore db --data-dir=/var/lib/etcd\ --name sd-node83 \ --initial-cluster sd-node82=http://172.31.40.82:2380,sd-node83=http://172.31.40.83:2380,sd-node84=http://172.31.40.84:2380 \ --initial-cluster-token etcd-cluster-sdn \ --initial-advertise-peer-urls http://172.31.40.83:2380 --skip-hash-check 授权 chown -R etcd:etcd /var/lib/etcd
启动 systemctl start etcd
查看集权状态
export ETCDCTL_API=2 etcdctl cluster-health member 5b2b7cf88370539d is healthy: got healthy result from http://172.31.40.83:2379 member 8fb71bb07a8e1652 is healthy: got healthy result from http://172.31.40.82:2379 member e2e5984c3c8ff4fc is healthy: got healthy result from http://172.31.40.84:2379