安装完成etcd，执行etcdctl member list报错

配置环境变量即可

export PATH=/usr/local/etcd/bin/:$PATH（多路径之间用:分隔）
export ETCDCTL_API=2

正常可以看到

[root@etcd5 ~]# etcdctl member list
71b9fac8482ec139, started, etcd-1, http://10.1.1.5:2380, http://10.1.1.5:2379
89d4b75907acdf9a, started, etcd-3, http://10.1.1.7:2380, http://10.1.1.7:2379
b22a0934e0760a75, started, etcd-2, http://10.1.1.6:2380, http://10.1.1.6:2379