Many thanks for the tip. I still haven't gotten around to implementing it because there are so few examples of xml files out there (there are many more .properties examples) so I am not sure exactly how to "attach the app appender to the highest point of your app hierachy". Currently I attach my ASYNC appender to root like this:
<root> <appender-ref ref="ASYNC"/> </root> ... but I am not sure how to do what you say, nor how to turn off additivity. Again, I've seen it done with .properties but not with xml. I haven't really gotten around to playing around with it, that being said, I just wanted to write back and say thanks, I think your tip is what I needed to know. When I get it working I'll let you know. Thanks again, Bob ----- Original Message ---- From: Javier Gonzalez <[EMAIL PROTECTED]> To: Log4J Users List <[email protected]> Sent: Tuesday, June 6, 2006 4:30:37 PM Subject: Re: Seperate log files for Tomcat / Java errors and application info Follow these steps: 1.- define one file appender for app messages and one appender for non-app messages. 2.- attach non-app appender to the root logger 3.- attach the app appender to the highest point of your app hierachy. Here I'm assuming you app is organized with a package hierachy that can be traced to a package that is the father of all your packages, and that you name your loggers after your classes, i.e. if your app is organized within a package hierachy that is called "com.robertbowen.app.*", you want to attach your app logger to "com.robertbowen.app". 4.- turn off additivity in the com.robertbowen.app logger. Very important, if you don't do this your app output will mingle with your non-app output at the root logger. 5.- Done! With this approach, you can also have your app on DEBUG and non-app messages on INFO or WARNING. On 6/6/06, Robert Bowen <[EMAIL PROTECTED]> wrote: > I have been scouring the list and have found a few mentions of how to > maintain two seperate log files but I can't find examples and in any case > what I would like to do is something a little different although I'm sure > easy to do. > > My app spits out all kinds of info in a certain, precise format. Tomcat > startup/shutdown and Java exceptions are sneaking into my log. I would like > tobe able to have all non-app messages go to one log, and app messages to > another. > > I am using xml format andmy log4j.xml is dirt simple. Can anyone tell me how > to do this, or point me to a link? The documentation is enormous and they > seem to explain just about everything you can possibly do with log4j ... > except what I want to do. :( > > Thanks in advance, log4j.xml follows, > Bob > > > <log4j:configuration debug="true" > xmlns:log4j="http://jakarta.apache.org/log4j/";;> > <appender name="ASYNC" class="org.apache.log4j.AsyncAppender"> > <appender-ref ref="DAILYFILE"/> > </appender> > > <appender name="DAILYFILE" > class="org.apache.log4j.DailyRollingFileAppender"> > <param name="file" value="${log.dir}vcache_sys"/> > <param name="datePattern" value="'.'yyyy-MM-dd"/> > <param name="threshold" value="INFO"/> > <param name="append" value="true"/> > <param name="immediateFlush" value="true"/> > > <layout class="org.apache.log4j.PatternLayout"> > <param name="conversionPattern" value="%m%n"/> > </layout> > </appender> > > <root> > <priority value="info"/> > <appender-ref ref="ASYNC"/> > </root> > </log4j:configuration> > > --------------------------------- > Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ > countries) for 2¢/min or less. > -- Javier González Nicolini --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
