etcd
ETCD对磁盘要求较高，官方推荐SSD起步。
ENDPOINTS=https://192.168.3.28:2379,https://192.168.3.29:2379,https://192.168.3.30:2379
# 查看集群状态
/usr/local/bin/etcdctl --cacert=/etc/ssl/etcd/ssl/ca.pem --cert=/etc/ssl/etcd/ssl/member-05.pem --key=/etc/ssl/etcd/ssl/member-05-key.pem --endpoints=$ENDPOINT endpoint status
# 查看健康状态
/usr/local/bin/etcdctl --cacert=/etc/ssl/etcd/ssl/ca.pem --cert=/etc/ssl/etcd/ssl/member-05.pem --key=/etc/ssl/etcd/ssl/member-05-key.pem --endpoints=$ENDPOINT endpoint health
# 查看所有监控指标
curl --cacert /etc/ssl/etcd/ssl/ca.pem --cert /etc/ssl/etcd/ssl/member-05.pem --key /etc/ssl/etcd/ssl/member-05-key.pem https://10.201.112.28:2379/metrics
# 查看和磁盘相关的
curl --cacert /etc/ssl/etcd/ssl/ca.pem --cert /etc/ssl/etcd/ssl/member-05.pem --key /etc/ssl/etcd/ssl/member-05-key.pem https://10.201.112.28:2379/metrics | grep disk_backend_commit_duration_seconds