How can I change the log level

[MHerbst (Martin Herbst)]

The log file openhab.log contains by default entries with log level “INFO”. Where can I changed the level to “WARNING”? I have checked several config files but did not find the place where the log level can be set.

[rtvb (Robert)]

Please read this topic for more information:

Logging under OH2 / Karaf

I note that with the latest version of OH2, there’s no longer a logback file, and we’re using logging associated with Karafa. How can we adjust log levels to something more useful for debugging - the default INFO is of little use unfortunately and the Karafa log commands don’t appear to allow changing of the bundle log levels. Thanks Chris

[luotaus (Joerg)]

Or check the new logging chapter in the openHAB 2 documentation.

[MHerbst (Martin Herbst)]

Thanks for the link, Joerg. Unfortunately this chapter describes only how to change the log level while openHab is running. I would like to have a default log level of WARNING to limit the log file sizes.

[luotaus (Joerg)]

Take a look at the file org.ops4j.pax.logging.cfg in the folder {openhab}/runtime/karaf/etc/

Changing one of the lines like:

log4j.logger.smarthome.event = INFO, event

to

log4j.logger.smarthome.event = WARN, event

should do the trick. However, I just started to work with Karaf so not 100% sure of what I am doing…

[chris (Chris Jackson)]

@MHerbst

Unfortunately this chapter describes only how to change the log level while openHab is running.

When you set the log level using the console, it will persist the setting. So, when you restart OH, it will still be as you set it.

If you update the runtime, then it may be reset to the default, but otherwise, it should do what you want.

[MHerbst (Martin Herbst)]

Thanks for the info, Chris. Will give it a try.

[KubaMiszcz (Kuba)]

in openhab-cli console type:

log:set WARN

it enables WARN for all, same with DEBUG, and INFO