# PgBouncer exporter >**Note:** Available since [Omnibus GitLab 11.0][2493]. For installations from source you'll have to install and configure it yourself. The [PgBouncer exporter] allows you to measure various PgBouncer metrics. To enable the PgBouncer exporter: 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`: ```ruby pgbouncer_exporter['enable'] = true ``` 1. Save the file and [reconfigure GitLab][reconfigure] for the changes to take effect. Prometheus will now automatically begin collecting performance data from the PgBouncer exporter exposed under `localhost:9188`. The PgBouncer exporter will also be enabled by default if the [pgbouncer_role][postgres roles] is enabled. [← Back to the main Prometheus page](index.md) [2493]: https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests/2493 [PgBouncer exporter]: https://github.com/stanhu/pgbouncer_exporter [postgres roles]: https://docs.gitlab.com/omnibus/roles/#postgres-roles [prometheus]: https://prometheus.io [reconfigure]: ../../restart_gitlab.md#omnibus-gitlab-reconfigure