Grafana Agent FlowMonitoring Grafana Agent FlowController metrics

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 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 to 1 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_total (Gauge): The current number of running components by health. The health is represented in the health_type label.
  • agent_component_evaluation_seconds (Histogram): The number of completed graph evaluations performed by the component controller with how long they took.