Change this linelog4perl.rootLogger = DEBUG, Log1
To this:log4perl.rootLogger = DEBUG, Buffer
And... you can remove this line if you'd like the TRACE category to show up on STDOUTlog4perl.category = DEBUG, Buffer
Let us know if that matches your expectations? Although deep down I think you'll find you may have to write a custom composite function if you'd like to get a deeper level of customization..