Both formats are perfectly valid, the only difference is how you're looking up 
the logger in your code.

To use "log4j.logger.de.simplicit.vjdbc=DEBUG, A1", your code would be calling 
the lookup with "de.simplicit.vjdbc".
To use "log4j.logger.vjdbc=DEBUG, A1", your code would be calling the lookup 
with "vjdbc".

Both should result in logging at DEBUG level to the A1 appender.

Bill
-----Original Message-----
From: Christopher Schultz [mailto:ch...@christopherschultz.net] 
Sent: May 12, 2011 5:14 PM
To: Tomcat Users List
Subject: Re: VJDBC and tomcat5

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André,

On 5/12/2011 9:49 AM, André Warnier wrote:
> Hi.
> I am am no log4j or java guru, but
> 
> Petr Hracek wrote:
> ...
> 
>> When I have inserted in log4j.properties file logging then in
>> catalina.out is not mentioned any output.
>> linux:/srv/www/tomcat5/base/webapps/vjdbc/WEB-INF # cat
>> /usr/share/tomcat5/common/classes/log4j.properties
>> log4j.logger.de.simplicit.vjdbc=DEBUG, A1
> 
> should that not simply be
> 
> log4j.logger.vjdbc=DEBUG, A1
> 
> (the name of the webapp, not the servlet class) ?

Naw, log4j loggers can use naming convention, but it's typical to use
class name (or package name, etc.) to define loggers and provide
configuration for them.

It probably has nothing to do with the problem, though the OP gave
virtually no details whatsoever about the problem other than stating
that "it doesn't work". :(

- -chris
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