Menu
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.
Open source
How to monitor controller
The Grafana Agent Flow component controller exposes Prometheus metrics which you can use to investigate the controller state.
Metrics for the controller are exposed at the /metrics
HTTP endpoint of the Grafana Agent Flow 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 Flow 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. 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 time it takes to evaluate components after one of their dependencies is updated.agent_component_dependencies_wait_seconds
(Histogram): Time spent by components waiting to be evaluated after one of their dependencies is updated.agent_component_evaluation_queue_size
(Gauge): The current number of component evaluations waiting to be performed.
Was this page helpful?
Related resources from Grafana Labs
Additional helpful documentation, links, and articles:
Video
Getting started with Grafana dashboard design
In this webinar, you'll learn how to design stylish and easily accessible Grafana dashboards that tell a story.
Video
Building advanced Grafana dashboards
In this webinar, we’ll demo how to build and format Grafana dashboards.
Video
Intro to Alerting with Grafana
Master alerting with Grafana: Navigate the complexities, reduce false positives, and boost reliability for your systems.