There are three primary troubleshooting tools you will become intimately familiar with: Log4j, your favorite Java debugger, and the Alfresco Node Browser. There are other, less-frequently used tools and techniques that will be discussed when the time is right.
Most of you are already familiar with this common logging tool, so not a lot of discussion is needed. For everyone else, here are the basics. The verbosity of the log output, the specific classes being logged, and other logging settings are controlled by Log4J property file:
If you are looking at a temporary change, you can update the file
custom-log4j.properties in the directory