I wanted to just give a little (unsolicited) feedback on my experience with Log4J2.
When it's configured it's great, but the way it is being configured and the ability to reconfigure it seem frustratingly complicated. Maybe I am just not using it correctly, but I have spent about 3 hours now pouring through documentation and trying things on my own with the simple goal of changing the root logger's log level and have come up empty-handed. I think I am doing something wrong, but it seems to be failing silently, which, if so, is beyond frustrating. I have a web application, and it seems very bizarre that you are injecting a Listener into my web app. The Filter I can partially understand, but it seems like it would have been much clearer and nicer to say something along the lines of "please add this listener to your web application to have Log4J automatically configured." If done that way, I wouldn't need to reconfigure Log4J2 at all and could, instead, just write my own Listener to initialize it. Maybe. I have been unsuccessful in even doing that (see, failing silently). What really gets me, though, is how someone is supposed to change the configuration. Again, maybe I am just missing something, but I feel like, given the amount of time I have been digging through documentation, it is something that should be more prominently displayed. You have a method of auto-detecting what kind of configuration file you are being given when someone gives you the "log4jConfiguration" property, so why isn't there a similar method for building a Configuration object? Moreover, why doesn't LogManager / LoggerContext simply have a more-direct method like, "reconfigure(String)". LoggerContext does have a "reconfigure()". However, why it does is unclear, and its documentation simply says, "Reconfigure the context." shrug. I am obviously frustrated. However, I am trying to write this with a spirit of "this is why I am frustrated" and not just have it come out as me venting. I hope it helped. Also, I did make a SO thread if anyone was feeling generous and wanted to give me / the community a few pointers: http://stackoverflow.com/questions/20363908/how-to-configure-log4j2 Thanks, John
