Caution
Grafana Alloy is the new name for our distribution of the OTel collector. Grafana Agent has been deprecated and is in Long-Term Support (LTS) through October 31, 2025. Grafana Agent will reach an End-of-Life (EOL) on November 1, 2025. Read more about why we recommend migrating to Grafana Alloy.
Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
Controller metrics
The Grafana Agent Flow component controller exposes Prometheus metrics which can be used to investigate the controller state.
Metrics for the controller are exposed at the /metrics
HTTP endpoint of the
Grafana Agent HTTP server, which defaults to listening on
http://localhost:12345
.
The documentation for the
grafana-agent run
command describes how to modify the address Grafana Agent listens on for HTTP traffic.
The controller exposes the following metrics:
agent_component_controller_evaluating
(Gauge): Set to1
whenever the component controller is currently evaluating components. Note that this value may be misrepresented depending on how fast evaluations complete or how often evaluations occur.agent_component_controller_running_components
(Gauge): The current number of running components by health. The health is represented in thehealth_type
label.agent_component_evaluation_seconds
(Histogram): The number of completed graph evaluations performed by the component controller with how long they took.