# Metrics - Prometheus / Graphana Goal: understanding of where exactly the time is being spent when executing queries (e.g. in Hue database, in interpreter, RPC call to warehouse...) * https://prometheus.io * https://grafana.com/grafana/ # TODO * Alerting: when is alive wrong more than X seconds * Number of active users * Resource usage: CPU, DB calls, memory, IOs * Slowness: percentiles times of requests * Number of queries * Provide default Graphana dashboard & alerting