记一次k8s etcd报错Unhealthy

使用命令某个节点ectd不健康

# kubectl get cs
NAME                 STATUS      MESSAGE                                                                                                                                        ERROR
controller-manager   Healthy     ok                                                                                                                                             
scheduler            Healthy     ok                                                                                                                                             
etcd-0               Healthy     {"health":"true"}                                                                                                                              
etcd-1               Healthy     {"health":"true"}                                                                                                                              
etcd-2               Unhealthy   Get https://172.16.5.66:103/health: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) 

经过检查没有发现etcd配置问题
故障原因，kube-apiserver配置错误

并不影响使用
修改即可重启kube-apiserver