Update docs for Synapse: move descriptions from docs/maintenance-and-troubleshooting.md and create the common section "Troubleshooting"

I am not sure what would be the motive to put the instruction for debugging Synapse on maintenance-and-troubleshooting.md above all, but now that we have the common section for an instruction about troubleshooting, it should make sense to move the instruction to the documentation page for configuring Synapse.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
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Suguru Hirahara 2025-01-30 02:31:54 +09:00
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@ -173,3 +173,18 @@ This playbook allows you to enable Synapse metrics, which can provide insight in
To enable Synapse runtime metrics see: [Enabling metrics and graphs (Prometheus, Grafana) for your Matrix server](configuring-playbook-prometheus-grafana.md)
To enable Synapse usage metrics, see: [Enabling synapse-usage-exporter for Synapse usage statistics](configuring-playbook-synapse-usage-exporter.md)
## Troubleshooting
As with all other services, you can find the logs in [systemd-journald](https://www.freedesktop.org/software/systemd/man/systemd-journald.service.html) by logging in to the server with SSH and running `journalctl -fu matrix-synapse`.
### Increase logging verbosity
Because the [Synapse](https://github.com/element-hq/synapse) Matrix server is originally very chatty when it comes to logging, we intentionally reduce its [logging level](https://docs.python.org/3/library/logging.html#logging-levels) from `INFO` to `WARNING`.
If you'd like to debug an issue or [report a Synapse bug](https://github.com/element-hq/synapse/issues/new/choose) to the developers, it'd be better if you temporarily increase the logging verbosity to `INFO`. To do so, add the following configuration to your `vars.yml` file and re-run the playbook:
```yaml
matrix_synapse_log_level: "INFO"
matrix_synapse_storage_sql_log_level: "INFO"
matrix_synapse_root_log_level: "INFO"

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@ -22,22 +22,6 @@ To view systemd-journald logs using [journalctl](https://man.archlinux.org/man/j
sudo journalctl -fu matrix-synapse
```
## Increase logging verbosity
Because the [Synapse](https://github.com/element-hq/synapse) Matrix server is originally very chatty when it comes to logging, we intentionally reduce its [logging level](https://docs.python.org/3/library/logging.html#logging-levels) from `INFO` to `WARNING`.
If you'd like to debug an issue or [report a Synapse bug](https://github.com/element-hq/synapse/issues/new/choose) to the developers, it'd be better if you temporarily increasing the logging level to `INFO`.
Example configuration (`inventory/host_vars/matrix.example.com/vars.yml`):
```yaml
matrix_synapse_log_level: "INFO"
matrix_synapse_storage_sql_log_level: "INFO"
matrix_synapse_root_log_level: "INFO"
```
Re-run the playbook after making these configuration changes.
## How to check if services work
The playbook can perform a check to ensure that you've configured things correctly and that services are running.