log4net across appdomains

Question

I have an application which initializes log4net from one appdomain and needs to use it in another appdomain. Is it supported?

If not, should I initialize log4net from each appdomain? Is there a risk in multiple initializations in the same application? Should I use the same log4net.config?

Answer 1

The logger should be initialized once per app-domain.

Answer 2

Agree with darin, once per app domain. If you're looking to have these applications use consolidated logging, you'll want to choose a logging target that won't be subject to contention (i.e. not FileAppender or RollingFileAppender).

Answer 3

The log4net-user mailing list has an answer that works with RollingFileAppender. Add the following line to the appender in log4net.config:

<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />