At 14:42 14.06.2002 -0700, [EMAIL PROTECTED] wrote: >I recently enabled JMX support for jk, and one of the things it's >doing is detect if log4j is available and enable the log4j JMX. > >There are few problems - and this is a deeper problem, that affects >the use of log4j as 'main' logger for tomcat. > >The first problem is conflicts in the generated names for the >log4j mbeans. For example, if 2 apps define a 'stdout' appender, both >will get the same name and things brake.
Yes. That's a known problem. One solution is to separate log4j mbeans by hierarchy. That might require hierarchies to be named entities, which is not the case at the moment. >There is a second problem - it seems curently only the root category >is visible - if now log categories are defined they are not visible. >( it is possible to use add() and make them visible, but add() is >broken and doesn't allow to define new logging categories ). Hmm. That's possible but nonetheless surprising. >It is obviously cool to be able to change the logging level on >the root category, but that's too coarse - so more granularity is >needed. Obviously. >The real big problem is in keeping the apps insolated, when log4j >is in the main classpath. It seems there are still problems with >that. Yes. >Another big issue is finding a way to 'hook' the Context.log() >into log4j. I dare say that that's a Tomcat problem. >I think the best solution for most of those problems would be to >allow somehow to use the webapp name ( VHOST:/path ) as a prefix >or namespace for the logging categories and appenders ( and the >associated JMX names ). We also need a mechansim to merge the >global log4j config with local log4j properties specified per >webapp. > >( and a way to override and control from the central config >what the webapps are allowed to do - remember the webapp >is not allways trusted ) > >Opinions? Sugestions ? Let's keep this channel open. I'd like to tackle the logging insulation problem first. >Costin -- Ceki SUICIDE BOMBING - A CRIME AGAINST HUMANITY Sign the petition: http://www.petitiononline.com/1234567b I am signatory number 22106. What is your number? -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
