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+# Registry exporter
+
+> [Introduced](https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests/2884) in GitLab 11.9.
+
+The Registry exporter allows you to measure various Registry metrics.
+To enable it:
+
+1. [Enable Prometheus](index.md#configuring-prometheus).
+1. Edit `/etc/gitlab/gitlab.rb` and enable [debug mode](https://docs.docker.com/registry/#debug) for the Registry:
+
+ ```ruby
+ registry['debug_addr'] = "localhost:5001" # localhost:5001/metrics
+ ```
+
+1. Save the file and [reconfigure GitLab](../../restart_gitlab.md#omnibus-gitlab-reconfigure)
+ for the changes to take effect.
+
+Prometheus will now automatically begin collecting performance data from
+the registry exporter exposed under `localhost:5001/metrics`.
+
+[← Back to the main Prometheus page](index.md)