Boris,
Even a single thread can have multiple repositories for logging (at
least in v1.3, I do not know when this was first introduced)
Should you be using spring then I might provide you with a little
springfactory for creating separately named repositories, possibly
each having their own configuration files. If you want it mail me at
[EMAIL PROTECTED] and I'll be back to you on monday.
Mark van der Voort
On Thu, 10 Mar 2005 10:45:02 -0600, Jacob Kjome <[EMAIL PROTECTED]> wrote:
>
> You could probably set a system property for each classloader if the
> classloaders use parent-last behavior like the servlet spec defines. So when
> you configure log4j each time, your config file could reference file names
> based on a system property, making all of them unique....
>
> log4j.appender.MYAPPENDER.File=${logdir}/myapp_${app_instance_name}.log
>
> Of course this requires configuring log4j separately each time within each
> parent-last classloader instance. In that case, you could even point to
> separate log4j config files to use rather than parameterizing one config file.
>
> Or you could write a ContextClassLoaderSelector (a repository selector based
> on
> classloader) and configure log4j per repository. See info at....
>
> http://www.qos.ch/logging/sc.jsp
>
> There is actually a classloader-based selector example there written for
> Log4j-1.2.x. It won't work as written in Log4j-1.3 since the interface
> changed.
>
> Jake
>
> Quoting Boris Klug <[EMAIL PROTECTED]>:
>
> > Hi!
> >
> > We need to run the same Java program say 20 times. Only difference is the
> > configuration of the program. For this, starting 20 jvms is very memory
> > consuming so I wrote a Java program which can load other Java
> > applicationwith
> > a different classloader for each application) and execute the void main(...)
> > in a own thread.
> > This works fine, we can now run the 20 instances of our program in one jvm
> > which saves a log of memory.
> >
> > The problem now is that all of the 20 programs do logging with log4j and all
> > log to the same file because the package and class names are all the same.
> >
> > So my question is:
> >
> > 1) Can i set a different log4j configuration for a thread?
> > 2) Is there another way to divide the 20 instances for logging?
> >
> > Thanks in advance!
> >
> >
> > --
> > Dipl. Inform. Boris Klug, control IT GmbH, Koblenz, Germany
> > http://www.control.de/ - Fon: +49 261-92748-321 - Fax: -336
> >
> >
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