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content/en/docs/concepts/cluster-administration/controller-metrics.md

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+---
+title: Controller manager metrics
+content_template: templates/concept
+---
+
+{{% capture overview %}}
+Controller manager metrics provide important insight into the performance and health of
+the controller manager.
+
+{{% /capture %}}
+
+{{% capture body %}}
+## What are controller manager metrics
+
+Controller manager metrics provide important insight into the performance and health of the controller manager.
+These metrics include common Go language runtime metrics such as go_routine count and controller specific metrics such as
+etcd request latencies or Cloudprovider (AWS, GCE, OpenStack) API latencies that can be used
+to gauge the health of a cluster.
+
+Starting from Kubernetes 1.7, detailed Cloudprovider metrics are available for storage operations for GCE, AWS, Vsphere and OpenStack.
+These metrics can be used to monitor health of persistent volume operations.
+
+For example, for GCE these metrics are called:
+
+```
+cloudprovider_gce_api_request_duration_seconds { request = "instance_list"}
+cloudprovider_gce_api_request_duration_seconds { request = "disk_insert"}
+cloudprovider_gce_api_request_duration_seconds { request = "disk_delete"}
+cloudprovider_gce_api_request_duration_seconds { request = "attach_disk"}
+cloudprovider_gce_api_request_duration_seconds { request = "detach_disk"}
+cloudprovider_gce_api_request_duration_seconds { request = "list_disk"}
+```
+
+
+
+## Configuration
+
+
+In a cluster, controller-manager metrics are available from `http://localhost:10252/metrics`
+from the host where the controller-manager is running.
+
+The metrics are emitted in [prometheus format](https://prometheus.io/docs/instrumenting/exposition_formats/) and are human readable.
+
+In a production environment you may want to configure prometheus or some other metrics scraper
+to periodically gather these metrics and make them available in some kind of time series database.
+
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+