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Documentation for graphs

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Peetz0r 2021-01-29 10:59:27 +01:00
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# Enabling metrics and graphs for your Matrix server (optional)
It can be useful to have some (visual) insight in the performance of your homeserver.
You can enable this with the following settings in your configuration file (`inventory/host_vars/matrix.<your-domain>/vars.yml`):
```yaml
matrix_prometheus_enabled: true
matrix_synapse_metrics_enabled: true
matrix_prometheus_node_exporter_enabled: true
matrix_grafana_enabled: true
matrix_grafana_anonymous_access: true
matrix_grafana_default_admin_user: yourname
matrix_grafana_default_admin_password: securelongpassword
```
## What does it do?
Name | Description
-----|----------
`matrix_prometheus_enabled`|Prometheus is a time series database. It holds all the data we're going to talk about.
`matrix_synapse_metrics_enabled`|Enables metrics specific to Synapse
`matrix_prometheus_node_exporter_enabled`|Node Exporter is an addon of sorts to Prometheus that collects generic system information such as CPU, memory, filesystem, and even system temperatures
`matrix_grafana_enabled`|Grafana is the visual component. It shows the dashboards with the graphs that we're interested in
`matrix_grafana_anonymous_access`|By default you need to login to see graphs. If you want to publicly share your graphs (e.g. when asking for help in [`#synapse:matrix.org`](https://matrix.to/#/#synapse:matrix.org?via=matrix.org&via=privacytools.io&via=mozilla.org)) you'll want to enable this option.
`matrix_grafana_default_admin_user`<br>`matrix_grafana_default_admin_password`|By default Grafana creates a user with `admin` as the username and password. If you feel this is insecure and you want to change it beforehand, you can do that here
## More inforation
- [Understanding Synapse Performance Issues Through Grafana Graphs](https://github.com/matrix-org/synapse/wiki/Understanding-Synapse-Performance-Issues-Through-Grafana-Graphs) at the Synapse Github Wiki
- [The Prometheus scraping rules](https://github.com/matrix-org/synapse/tree/master/contrib/prometheus) (we use v2)
- [The Synapse Grafana dashboard](https://github.com/matrix-org/synapse/tree/master/contrib/grafana)
- [The Node Exporter dashboard](https://github.com/rfrail3/grafana-dashboards) (for generic non-synapse performance graphs)