---
type: reference
---

# Configuring Gitaly for Scaled and High Availability

A [Gitaly Cluster](../gitaly/praefect.md) can be used to increase the fault
tolerance of Gitaly in high availability configurations.

This document is relevant for [scalable and highly available setups](../reference_architectures/index.md).

## Running Gitaly on its own server

See [Running Gitaly on its own server](../gitaly/index.md#running-gitaly-on-its-own-server)
in Gitaly documentation.

Continue configuration of other components by going back to the
[reference architecture](../reference_architectures/index.md#configure-gitlab-to-scale) page.

## Enable Monitoring

> [Introduced](https://gitlab.com/gitlab-org/omnibus-gitlab/issues/3786) in GitLab 12.0.

1. Make sure to collect [`CONSUL_SERVER_NODES`](database.md#consul-information), which are the IP addresses or DNS records of the Consul server nodes, for the next step. Note they are presented as `Y.Y.Y.Y consul1.gitlab.example.com Z.Z.Z.Z`

1. Create/edit `/etc/gitlab/gitlab.rb` and add the following configuration:

   ```ruby
   # Enable service discovery for Prometheus
   consul['enable'] = true
   consul['monitoring_service_discovery'] =  true

   # Replace placeholders
   # Y.Y.Y.Y consul1.gitlab.example.com Z.Z.Z.Z
   # with the addresses of the Consul server nodes
   consul['configuration'] = {
      retry_join: %w(Y.Y.Y.Y consul1.gitlab.example.com Z.Z.Z.Z),
   }

   # Set the network addresses that the exporters will listen on
   node_exporter['listen_address'] = '0.0.0.0:9100'
   gitaly['prometheus_listen_addr'] = "0.0.0.0:9236"
   ```

1. Run `sudo gitlab-ctl reconfigure` to compile the configuration.

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