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Diffstat (limited to 'doc/administration/monitoring/prometheus/gitlab_exporter.md')
| -rw-r--r-- | doc/administration/monitoring/prometheus/gitlab_exporter.md | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/administration/monitoring/prometheus/gitlab_exporter.md b/doc/administration/monitoring/prometheus/gitlab_exporter.md index 8e4d87cfa78..5add842bccc 100644 --- a/doc/administration/monitoring/prometheus/gitlab_exporter.md +++ b/doc/administration/monitoring/prometheus/gitlab_exporter.md @@ -30,3 +30,27 @@ To enable the GitLab exporter in an Omnibus GitLab instance: Prometheus automatically begins collecting performance data from the GitLab exporter exposed at `localhost:9168`. + +## Use a different Rack server + +>- Introduced in [Omnibus GitLab 13.8](https://gitlab.com/gitlab-org/omnibus-gitlab/-/merge_requests/4896). +>- WEBrick is now the default Rack server instead of Puma. + +By default, the GitLab exporter runs on [WEBrick](https://github.com/ruby/webrick), a single-threaded Ruby web server. +You can choose a different Rack server that better matches your performance needs. +For instance, in multi-node setups that contain a large number of Prometheus scrapers +but only a few monitoring nodes, you may decide to run a multi-threaded server such as Puma instead. + +To change the Rack server to Puma: + +1. Edit `/etc/gitlab/gitlab.rb`. +1. Add, or find and uncomment, the following line, and set it to `puma`: + + ```ruby + gitlab_exporter['server_name'] = 'puma' + ``` + +1. Save the file and [reconfigure GitLab](../../restart_gitlab.md#omnibus-gitlab-reconfigure) + for the changes to take effect. + +The supported Rack servers are `webrick` and `puma`. |