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---
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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