Takuya Tokuda
0502832cbb
* ordering content by weight * fix weight of 'setup' contents * fix weight of 'concepts' contents * fix weight of 'tasks' contents * fix weight of 'tutorials' contents * fix weight of 'reference' contents * Revert "fix weight of 'tasks' contents" This reverts commit 4b6916bed07c92c5f9eed75fb0a7ef0244266623. * Revert "fix weight of 'tutorials' contents" This reverts commit a1f783314337b1eb40017aef47a6bf1453d8c840. * Revert "fix weight of 'setup' contents" This reverts commit 91c8de366587eed25c803f8e7d5a59005adb6025. * Revert "fix weight of 'reference' contents" This reverts commit cc95605f6a9863f8a4ffb636178c69a80d302c3e.
51 lines
1.9 KiB
Markdown
51 lines
1.9 KiB
Markdown
---
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title: Controller manager metrics
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content_template: templates/concept
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weight: 100
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---
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{{% capture overview %}}
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Controller manager metrics provide important insight into the performance and health of
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the controller manager.
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{{% /capture %}}
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{{% capture body %}}
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## What are controller manager metrics
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Controller manager metrics provide important insight into the performance and health of the controller manager.
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These metrics include common Go language runtime metrics such as go_routine count and controller specific metrics such as
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etcd request latencies or Cloudprovider (AWS, GCE, OpenStack) API latencies that can be used
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to gauge the health of a cluster.
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Starting from Kubernetes 1.7, detailed Cloudprovider metrics are available for storage operations for GCE, AWS, Vsphere and OpenStack.
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These metrics can be used to monitor health of persistent volume operations.
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For example, for GCE these metrics are called:
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```
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cloudprovider_gce_api_request_duration_seconds { request = "instance_list"}
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cloudprovider_gce_api_request_duration_seconds { request = "disk_insert"}
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cloudprovider_gce_api_request_duration_seconds { request = "disk_delete"}
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cloudprovider_gce_api_request_duration_seconds { request = "attach_disk"}
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cloudprovider_gce_api_request_duration_seconds { request = "detach_disk"}
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cloudprovider_gce_api_request_duration_seconds { request = "list_disk"}
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```
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## Configuration
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In a cluster, controller-manager metrics are available from `http://localhost:10252/metrics`
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from the host where the controller-manager is running.
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The metrics are emitted in [prometheus format](https://prometheus.io/docs/instrumenting/exposition_formats/) and are human readable.
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In a production environment you may want to configure prometheus or some other metrics scraper
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to periodically gather these metrics and make them available in some kind of time series database.
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{{% /capture %}}
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