A different log for every user using Log4j

Question

I have a webapplication and I want to use a different log for every user, so I can have a \"history\" of what the user did on the system.

This is what I have so far:

Answer 1

Try switching to logback (log4j's successor). It comes with a SiftingAppender which can be used to separate (or sift) logging according to a given runtime attribute, which would be "userid" in your case. The documentation contains an example for separating logs based on userid.