Comment 30 for bug 1852502

Something that might be worth entertaining for these scenarios is to use the logging-output configuration article.

You can direct logging to syslog instead of Mongo by using the config:
"logging-output=syslog"

On 2.9 this is behind a feature flag, so you will also need to configure:
"features=[logging-output]"

The flag won't be required for 3.0.

Just be aware that depending on the specific environment, using this feature can cause a lot of logging via the serial console. It caused issues on one particularly large controller.