kubernetes 二進制安裝 遇到 etcd 不能啓動報錯 處理

查看系統日誌 報錯信息

May 13 14:14:02 master etcd: health check for peer 92e46651355a9596 could not connect: dial tcp 192.168.243.150:2380: connect: connection refused
May 13 14:14:02 master etcd: health check for peer 92e46651355a9596 could not connect: dial tcp 192.168.243.150:2380: connect: connection refused
May 13 14:14:02 master etcd: health check for peer df28de52717ead9b could not connect: dial tcp 192.168.243.149:2380: connect: connection refused
May 13 14:14:02 master etcd: health check for peer df28de52717ead9b could not connect: dial tcp 192.168.243.149:2380: connect: connection refused

// 1·排除 etcd 配置文件錯誤。
// 2. 需要先啓動 其他節點的 etcd 而不是 master 的etcd
// 3.原因：分析是因爲etcd1的配置文件/etc/systemd/system/etcd.service 啓動腳本中的ETCD_INITIAL_CLUSTER_STATE是new，而在配置中ETCD_INITIAL_CLUSTER寫入了etcd2/3的IP:PORT，這時etcd1嘗試去連接etcd2、etcd3，但是etcd2、3的etcd服務此時還未啓動，因此需要先啓動etcd2和3的etcd服務，再去啓動etcd1。