RE: Different log files for different web applications under Tomcat
Thanks to all of you. It works fine. Jacob Kjome <[EMAIL PROTECTED]> a écrit : see comment below... At 06:05 PM 2/27/2006 +0100, you wrote: >Interesting aspect. I never dealt with classloaders. Thanks for this >improvement of my knowledge. > >Heri > >> -Original Message- >> From: Javier Gonzalez [mailto:[EMAIL PROTECTED] >> Sent: Monday, February 27, 2006 5:31 PM >> To: Log4J Users List >> Subject: Re: Different log files for different web applications under >> Tomcat >> >> >> It does not start different JVMs - however, given the way the tomcat >> classloader works ( >> http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html ), the >> instances are separate. I have a bunch of servers with separate log4j >> configurations on each context to support my point ;) >> >> But you made me remember an important point - log4j.jar must >> be only inside >> the contexts, and not in $TOMCAT_HOME/common/lib or >> $TOMCAT_HOME/shared/lib >> No, it's perfectly fine to have log4j.jar in either common/lib or shared/lib *and* have log4j.jar in each webapp's WEB-INF/lib. Logging will still be separated. The global log4j.jar will be used for Tomcat logging (assuming you also have commons-logging.jar in common/lib and log4j.xml or log4j.properties in common/classes) or any application that doesn't include log4j.jar in WEB-INF/lib. Watch out for log4j.jar's in WEB-INF/lib looking up log4j.xml in common/classes when performing default configuration at classloader startup. To prevent this, put log4j.xml in WEB-INF/classes. If you want to perform manual configuration at a later time than classloader startup, make the log4j.xml file a dummy file that has all logging turned off. "log4j.xml" is significant, since Log4j looks for it in preference to log4j.properties. Of course, the other option is to use a repository selector such as the ContextJNDISelector in Log4j-1.3 or the 1.2 compatible version in the sandbox. Jake >> On 2/27/06, Bender Heri wrote: >> > >> > Does Tomcat start a separate JVM for each WEB-INF >> application? If not, >> > your suggestion would not work since Log4j is global within one JVM. >> > Heri >> > > >- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international.Téléchargez la version beta.
RE: Different log files for different web applications under Tomcat
see comment below... At 06:05 PM 2/27/2006 +0100, you wrote: >Interesting aspect. I never dealt with classloaders. Thanks for this >improvement of my knowledge. > >Heri > >> -Original Message- >> From: Javier Gonzalez [mailto:[EMAIL PROTECTED] >> Sent: Monday, February 27, 2006 5:31 PM >> To: Log4J Users List >> Subject: Re: Different log files for different web applications under >> Tomcat >> >> >> It does not start different JVMs - however, given the way the tomcat >> classloader works ( >> http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html ), the >> instances are separate. I have a bunch of servers with separate log4j >> configurations on each context to support my point ;) >> >> But you made me remember an important point - log4j.jar must >> be only inside >> the contexts, and not in $TOMCAT_HOME/common/lib or >> $TOMCAT_HOME/shared/lib >> No, it's perfectly fine to have log4j.jar in either common/lib or shared/lib *and* have log4j.jar in each webapp's WEB-INF/lib. Logging will still be separated. The global log4j.jar will be used for Tomcat logging (assuming you also have commons-logging.jar in common/lib and log4j.xml or log4j.properties in common/classes) or any application that doesn't include log4j.jar in WEB-INF/lib. Watch out for log4j.jar's in WEB-INF/lib looking up log4j.xml in common/classes when performing default configuration at classloader startup. To prevent this, put log4j.xml in WEB-INF/classes. If you want to perform manual configuration at a later time than classloader startup, make the log4j.xml file a dummy file that has all logging turned off. "log4j.xml" is significant, since Log4j looks for it in preference to log4j.properties. Of course, the other option is to use a repository selector such as the ContextJNDISelector in Log4j-1.3 or the 1.2 compatible version in the sandbox. Jake >> On 2/27/06, Bender Heri <[EMAIL PROTECTED]> wrote: >> > >> > Does Tomcat start a separate JVM for each WEB-INF >> application? If not, >> > your suggestion would not work since Log4j is global within one JVM. >> > Heri >> > > >- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Different log files for different web applications under Tomcat
Interesting aspect. I never dealt with classloaders. Thanks for this improvement of my knowledge. Heri > -Original Message- > From: Javier Gonzalez [mailto:[EMAIL PROTECTED] > Sent: Monday, February 27, 2006 5:31 PM > To: Log4J Users List > Subject: Re: Different log files for different web applications under > Tomcat > > > It does not start different JVMs - however, given the way the tomcat > classloader works ( > http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html ), the > instances are separate. I have a bunch of servers with separate log4j > configurations on each context to support my point ;) > > But you made me remember an important point - log4j.jar must > be only inside > the contexts, and not in $TOMCAT_HOME/common/lib or > $TOMCAT_HOME/shared/lib > > On 2/27/06, Bender Heri <[EMAIL PROTECTED]> wrote: > > > > Does Tomcat start a separate JVM for each WEB-INF > application? If not, > > your suggestion would not work since Log4j is global within one JVM. > > Heri > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Different log files for different web applications under Tomcat
It does not start different JVMs - however, given the way the tomcat classloader works ( http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html ), the instances are separate. I have a bunch of servers with separate log4j configurations on each context to support my point ;) But you made me remember an important point - log4j.jar must be only inside the contexts, and not in $TOMCAT_HOME/common/lib or $TOMCAT_HOME/shared/lib On 2/27/06, Bender Heri <[EMAIL PROTECTED]> wrote: > > Does Tomcat start a separate JVM for each WEB-INF application? If not, > your suggestion would not work since Log4j is global within one JVM. > Heri > > > -Original Message- > > From: Javier Gonzalez [mailto:[EMAIL PROTECTED] > > Sent: Monday, February 27, 2006 4:47 PM > > To: Log4J Users List > > Subject: Re: Different log files for different web applications under > > Tomcat > > > > > > Easiest way: include a copy of log4j.jar in each of the web apps' > > WEB-INF/lib folder. Include a separate log4j configuration > > file in each > > WEB-INF/classes (or modify each app to configure log4j in each). > > > > On 2/27/06, julie gautier <[EMAIL PROTECTED]> wrote: > > > > > > Hi all, > > > I use Tomcat to deploy two web applications. Actually, > > all the traces > > > are written to a single file (stdout.log) under the Tomcat > > log directory. > > > How can I do to write the traces to different log files : > > app1.out and > > > app2.out for instance. > > > Could you please send me an example ? > > > Thanks to help me. > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- Javier González Nicolini
RE: Different log files for different web applications under Tomcat
Does Tomcat start a separate JVM for each WEB-INF application? If not, your suggestion would not work since Log4j is global within one JVM. Heri > -Original Message- > From: Javier Gonzalez [mailto:[EMAIL PROTECTED] > Sent: Monday, February 27, 2006 4:47 PM > To: Log4J Users List > Subject: Re: Different log files for different web applications under > Tomcat > > > Easiest way: include a copy of log4j.jar in each of the web apps' > WEB-INF/lib folder. Include a separate log4j configuration > file in each > WEB-INF/classes (or modify each app to configure log4j in each). > > On 2/27/06, julie gautier <[EMAIL PROTECTED]> wrote: > > > > Hi all, > > I use Tomcat to deploy two web applications. Actually, > all the traces > > are written to a single file (stdout.log) under the Tomcat > log directory. > > How can I do to write the traces to different log files : > app1.out and > > app2.out for instance. > > Could you please send me an example ? > > Thanks to help me. > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Different log files for different web applications under Tomcat
The short log4j tutorial on the log4j website ( http://logging.apache.org/log4j/docs/manual.html ) should give you a quick primer on configuring log4j for a specific log file. On the issue at hand, having a copy of log4j in each tomcat context insures that there are two independent stances of log4j, one in each context. You just need to create a configuration file for each as if it was a standalone app, and don't worry about the other. On 2/27/06, julie gautier <[EMAIL PROTECTED]> wrote: > > I know my questions are probably stupid (I'm don't know anything to log4j) > but I actually use log4j without configuration file. Do I have to have a > lo4j.properties and a log4j.xml files ? Does someone have an example of > such configuration files in the aim of having log files depending on the > context (one per application) ? > Thanks again... and sorry for those (too simple and annoying) questions. > > Javier Gonzalez <[EMAIL PROTECTED]> a écrit : > Easiest way: include a copy of log4j.jar in each of the web apps' > WEB-INF/lib folder. Include a separate log4j configuration file in each > WEB-INF/classes (or modify each app to configure log4j in each). > > On 2/27/06, julie gautier wrote: > > > > Hi all, > > I use Tomcat to deploy two web applications. Actually, all the traces > > are written to a single file (stdout.log) under the Tomcat log > directory. > > How can I do to write the traces to different log files : app1.out and > > app2.out for instance. > > Could you please send me an example ? > > Thanks to help me. > > > > > > > > - > > Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les > > tarifs exceptionnels pour appeler la France et l' > international.Téléchargezla version beta. > > > > > > -- > Javier González Nicolini > > > > - > Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les > tarifs exceptionnels pour appeler la France et l'international.Téléchargezla > version beta. > -- Javier González Nicolini
Re: Different log files for different web applications under Tomcat
I know my questions are probably stupid (I'm don't know anything to log4j) but I actually use log4j without configuration file. Do I have to have a lo4j.properties and a log4j.xml files ? Does someone have an example of such configuration files in the aim of having log files depending on the context (one per application) ? Thanks again... and sorry for those (too simple and annoying) questions. Javier Gonzalez <[EMAIL PROTECTED]> a écrit : Easiest way: include a copy of log4j.jar in each of the web apps' WEB-INF/lib folder. Include a separate log4j configuration file in each WEB-INF/classes (or modify each app to configure log4j in each). On 2/27/06, julie gautier wrote: > > Hi all, > I use Tomcat to deploy two web applications. Actually, all the traces > are written to a single file (stdout.log) under the Tomcat log directory. > How can I do to write the traces to different log files : app1.out and > app2.out for instance. > Could you please send me an example ? > Thanks to help me. > > > > - > Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les > tarifs exceptionnels pour appeler la France et l'international.Téléchargezla > version beta. > -- Javier González Nicolini - Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international.Téléchargez la version beta.
Re: Different log files for different web applications under Tomcat
Easiest way: include a copy of log4j.jar in each of the web apps' WEB-INF/lib folder. Include a separate log4j configuration file in each WEB-INF/classes (or modify each app to configure log4j in each). On 2/27/06, julie gautier <[EMAIL PROTECTED]> wrote: > > Hi all, > I use Tomcat to deploy two web applications. Actually, all the traces > are written to a single file (stdout.log) under the Tomcat log directory. > How can I do to write the traces to different log files : app1.out and > app2.out for instance. > Could you please send me an example ? > Thanks to help me. > > > > - > Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les > tarifs exceptionnels pour appeler la France et l'international.Téléchargezla > version beta. > -- Javier González Nicolini
RE: Different log files for different web applications under Tomcat
see actual thread "Single logfile per User and Day" and the thread from last week "Use different log files inside one program". Heri > -Original Message- > From: julie gautier [mailto:[EMAIL PROTECTED] > Sent: Monday, February 27, 2006 4:37 PM > To: log4j-user@logging.apache.org > Subject: Different log files for different web applications > under Tomcat > > > Hi all, > I use Tomcat to deploy two web applications. Actually, all > the traces are written to a single file (stdout.log) under > the Tomcat log directory. How can I do to write the traces to > different log files : app1.out and app2.out for instance. > Could you please send me an example ? > Thanks to help me. > > > > - > Nouveau : téléphonez moins cher avec Yahoo! Messenger ! > Découvez les tarifs exceptionnels pour appeler la France et > l'international.Téléchargez la version beta. > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
