Run Logback in Debug

java logging logback
dogbane picture dogbane · Sep 27, 2010 · Viewed 39.8k times · Source

I've recently switched from log4j to logback and am wondering if there is an easy way to run logback in debug mode, similar to log4j's log4j.debug property. I need to see where it is picking up my logback.xml from.

The docs mention using a StatusPrinter to print out logback's internal status, but that would require code changes.

Answer

Aaron Digulla picture Aaron Digulla · Sep 27, 2010

[EDIT]

This has been fixed in Logback 1.0.4. You can now use -Dlogback.debug=true to enable debugging of the logback setup.

-- Old Answer --

Unfortunately, there is no way to enable debugging via a System property. You have to use <configuration debug="true"> in the logback.xml. Please submit a feature request.

Related questions

How can I configure Logback to log different levels for a logger to different destinations?

How can I configure Logback to log different levels for a logger to different destinations? For example, given the following Logback configuration, will Logback record INFO messages to STDOUT and ERROR messages to STDERR? (Note that this example is a …

Read More
How to change root logging level programmatically for logback

I have the following logback.xml file: <configuration debug="true"> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%…

Read More
log4j vs logback

We are using log4j behind a selfmade wrapper. We plan to use much more features of it now. Should we update to logback ? (I mean the framework not a facade like SLF4J)

Read More