etcd uses Prometheus for metrics reporting. The metrics can be used for real-time monitoring and debugging. etcd does not persist its metrics; if a member restarts, the metrics will be reset. The simplest way to see the available metrics is to cURL the metrics endpoint /metrics. The format is described here. Follow the Prometheus getting started doc to spin up a Prometheus server to collect etcd metrics. The naming of metrics follows the suggested Prometheus best practices. A metric name has ...