Why is the date appended twice on filenames when using Log4Net?

Question

I was trying to add the date to my log file name and I was able to make it work by following the few suggestions I\'ve found in stackoverflow. Everything works fine but for some

Answer 1

I run into the same problem. For me, it was a combination of using RollingFileAppender for my test logs, and running my NUnit tests with ReSharper.

It turns out that ReSharper uses two processes to run the tests:

which creates a race condition on the log file.

Now, if we change the log file name to include the process id:

the problem is solved. Each file gets its own, unique name:

MyLog.pid.5440_2010-10-13.log
MyLog.pid.1496_2010-10-13.log

Note the use of PatternString for 'type'.

Hope that helps.