How to set log level at runtime

[yangju]

We have exposed several background processors as jboss standard mbean service. We would like to be able to set each service's log level dynamically.
This way, if we have an issue in prodution, we could just turn on the debugging level logging and search for many detailed info. After we are done, we can turn off the debug level logging. We are using log4j.

Thanks.

Richard

[milowe]

You can change the prority (debug lvl) for your different categories at run-time in log4j.xml. This file is periodically scanned for updates.

[sharris]

If you want to do it in code, you can define a Logger for each service, get these Loggers using the static Logger.getLoger(name) method and then setLevel(level) on the Logger instanaces. See the log4j API for details.