Prometheus

Prometheus is a free and open source software project centered on server monitoring and alerting.

Contents

Project

The Prometheus project consists of:

the Prometheus time series database
the Prometheus web scraper which aggregates metrics from targets into the database
the built-in web interface for querying the database
the HTTP API for querying the database, as used by Grafana
a set of exporters which expose metrics from various sources
the Prometheus query language, PromQL

See PromQL for the query language.