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---
stage: Monitor
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group: Health
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
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---
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# Node exporter **(FREE SELF)**
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The [node exporter ](https://github.com/prometheus/node_exporter ) enables you to measure
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various machine resources such as memory, disk and CPU utilization.
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For installations from source you must install and configure it yourself.
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To enable the node exporter:
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1. [Enable Prometheus ](index.md#configuring-prometheus ).
1. Edit `/etc/gitlab/gitlab.rb` .
1. Add (or find and uncomment) the following line, making sure it's set to `true` :
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```ruby
node_exporter['enable'] = true
```
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1. Save the file, and [reconfigure GitLab ](../../restart_gitlab.md#omnibus-gitlab-reconfigure )
for the changes to take effect.
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Prometheus begins collecting performance data from the node exporter
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exposed at `localhost:9100` .
