Add troubleshooting instructions for debugging (#1358)

* debugging
* add streaming instructions
* add streaming log_level to config page
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Michael Stanclift 2023-12-10 14:41:43 -06:00 committed by GitHub
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@ -198,7 +198,11 @@ If set to true, Mastodon will answer requests for files in its `public` director
#### `RAILS_LOG_LEVEL`
Determines the amount of logs generated by Mastodon. Defaults to `info`, which generates a log entry about every request served by Mastodon and every background job processed by Mastodon. This can be useful but can get quite noisy and strain the I/O of your machine if there is a lot of traffic/activity. In that case, `warn` is recommended, which will only output information about things that are going wrong, and otherwise stay quiet. Possible values are `debug`, `info`, `warn`, `error`, `fatal` and `unknown`.
Determines the amount of logs generated by Mastodon for the web and Sidekiq processes. Defaults to `info`, which generates a log entry about every request served by Mastodon and every background job processed by Mastodon. This can be useful but can get quite noisy and strain the I/O of your machine if there is a lot of traffic/activity. In that case, `warn` is recommended, which will only output information about things that are going wrong, and otherwise stay quiet. Possible values are `debug`, `info`, `warn`, `error`, `fatal` and `unknown`.
#### `LOG_LEVEL`
Determines the amount of logs generated by Mastodon for the streaming processes. Defaults to `info`. Possible values are `silly` and `info`.
#### `TRUSTED_PROXY_IP`

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@ -15,6 +15,17 @@ Specific details of server-side errors are _never_ displayed to the public, as t
Each response from Mastodons web server carries a header with a unique request ID, which is also reflected in the logs. By inspecting the headers of the error page, you can easily find the corresponding stack trace in the log.
## **I'm not seeing much in my logs. How do I enable additional logging/debugging information?**
By default your logs will show `info` level logging. To see more debugging messages, you can your `.env.production` file to increase the level, for the relevant service:
- **Web/Sidekiq:** Set the value of `RAILS_LOG_LEVEL` to `debug` and then restart the service that you're attempting to troubleshoot.
- **Streaming:** Set the value of `LOG_LEVEL` to `silly` and then restart the service that you're attempting to troubleshoot.
More information on other logging levels for these option can be found on the [Configuring your environment](https://docs.joinmastodon.org/admin/config) page.
The `debug` or `silly` levels can be very verbose and you should take care to change the log level back to a lower level, once you have completed your troubleshooting.
## **After an upgrade to a newer version, some pages look weird, like they have unstyled elements. Why?**
Check that you have run `RAILS_ENV=production bin/rails assets:precompile` after the upgrade, and restarted Mastodons web process, because it looks like its serving outdated stylesheets and scripts. Its also possible that the precompilation fails due to a lack of RAM, as webpack is unfortunately extremely memory-hungry. If that is the case, make sure you have some swap space assigned. Alternatively, its possible to precompile the assets on a different machine, then copy over the `public/packs` directory.