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add reference to ksm

This commit is contained in:
David Ashpole 2020-12-15 11:25:58 -08:00
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commit e984f3b36d
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6
contributors/devel/sig-instrumentation/instrumentation.md
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@ -138,6 +138,12 @@ group. Metrics take the form:
kube_[<group>](https://kubernetes.io/docs/reference/using-api/#api-groups)_<kind>_metric
```
The [Kube-State-Metrics](https://github.com/kubernetes/kube-state-metrics)
project introduced the original kube_* prefixed metrics. For examples of
kube_* prefixed metrics, refer to the list of
[Exposed Metrics](https://github.com/kubernetes/kube-state-metrics/tree/master/docs#exposed-metrics)
in the Kube-State-Metrics documentation.
## Dimensionality & Cardinality
Metrics can often replace more expensive logging as they are time-aggregated