k8s, etcd集群搭建报报错：request cluster ID mismatch (got
目前在学习K8S, etcd 集群搭建，启动时候报错：master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
master-16 etcd: request cluster ID mismatch (got bdd7c7c32bde1208 want 698851d67fea3c17)
检查启动service 和配置etcd.conf ,问题应该没有出在配置上。
解决办法：删除了etcd集群所有节点中的--data_dir的内容
分析： 因为集群搭建过程，单独启动过单一etcd,做为测试验证，集群内第一次启动其他etcd服务时候，是通过发现服务引导的，所以需要删除旧的成员信息
参考：One of the member was bootstrapped via discovery service. You must remove the previous data-dir to clean up the member information. Or the member will ignore the new configuration and start with the old configuration. That is why you see the mismatch.
k8s 推荐学习博客：https://jimmysong.io/kubernetes-handbook
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