request cluster ID mismatch，request sent was ignored，k8s集群部署中etcd启动报错处理

原因是/var/lib/etcd/目录下缓存导致
下面展示一些 内联代码片。

cd /var/lib/etcd/
rm -rf ./*
systemctl daemon-reload
 systemctl start etcd.service

cd /var/lib/etcd/
rm -rf ./*
systemctl daemon-reload
 systemctl start etcd.service