1. 若本机检查显示正常则防火墙原因
kubectl get cs
systemctl disable firewalld
systemctl stop firewalld
2. 数据不一致
rm -rf /var/lib/etcd
# 修改 /etc/etcd.env 里面的
-initial-cluster-state=existing
重启服务
systemctl restart etcd
原文：https://www.cnblogs.com/EthanSun/p/13632333.html