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From "Jacob Kjome" <h...@visi.com>
Subject Re: Help needed with log4j used with JBOSS server
Date Wed, 23 Jan 2008 17:26:27 GMT

First, last I heard, JBoss uses single uber-classloader.  The log4j.jar in 
your own application won't be used if it's already been loaded by JBoss as a 
server library.  Even if single classloader concept wasn't used, unless JBoss 
allowed you to configure your webapps to use child-first classloading 
behavior, you can't expect your copy of log4j.jar in WEB-INF/lib to be used.

Since it's pretty clear that the server-provided log4j.jar is being used and 
we know that log4j, by default, loads the first log4j.xml or log4j.properties 
(in that order) that it finds at the first use of LogManager.class, you are 
correct in thinking that some other log4j configuration file is being used.... 
at least initially.

Furthermore, from what I remember, JBoss sets it's own logger repository 
selector to separate application logging (and server logging).  So, even if 
you see logs showing up in JBoss's configured areas, this might only apply to 
the logger repository that the JBoss server is using, not individual 
applications running under JBoss.

That said, I'm not sure why you don't see creation of your log file?  Your 
properties file wasn't atached to the message (I think the list strips 
attachments).  Just paste it as text in the message next time.  When you run 
configure(), it should be configuring the logger repository assigned to your 
application (again, assuming JBoss is, indeed, setting the repository selector 
at startup).  And you shouldn't be calling configure() more than once in the 
entirety of your running application, unless you really understand what your 
are doing and mean to do it.  That doesn't appear to be the case here.

One thing to check is that the directory you want your log file to appear is 
has been created.  Log4j won't do that for you.  If the directory doesn't 
exist, your log file won't exist.  In any case, paste your config and give us 
more info on what JBoss is doing as far as setting repository selectors and 
whatnot.   I am not an expert in JBoss (haven't used it for years), so take 
what I say about it with a grain of salt.


On Wed, 23 Jan 2008 10:52:06 +0530
  "Sneha Nikum" <snehanikum@gmail.com> wrote:
> Hi Ruchi,
>     I will surely try this out. But am yet not sure if this is going to
> work, because the problem here is that the .property file that I have
> written is simply not used. Its using the .property file that  is in the
> <JBOSS_HOME>server\default\conf directory. The log4j.xml file is being used.
>   But anyways wil give this a try. Thanks for the prompt reply
> Thanks and Regards
> --
> Sneha Anil Nikum
> Don't get even with people
> get AHEAD of them!
> On Jan 23, 2008 10:44 AM, Ruchi Mishra <ruchi.m@zensar.com> wrote:
>> Hi Sneha,
>> What you can do is create a log4jinitServlet class and in that servlet
>> configure the path of your properties file.
>> This servlet need to be mapped in your web.xml file.
>> regards
>> Ruchi
>> ________________________________
>> From: Sneha Nikum [mailto:snehanikum@gmail.com]
>> Sent: Wednesday, January 23, 2008 10:38 AM
>> To: log4j-user@logging.apache.org
>> Subject: Help needed with log4j used with JBOSS server
>> Hi,
>>      I am Sneha, I am working on creating a hosted service, and using
>> log4j for logging purpose. I am new to it.
>>     I am trying to log the details to a log file, using a .properties
>> file. I have placed this file into the WEB-INF->classes directory.
>> But yet, after I run the project, the log file is not getting created,
>> the logs are going into the server.log file of JBOSS. I think this
>> problem has something to do with the class loaders. As JBOSS also has
>> its own log4j.jar .
>>    I have attached with this mail the property file.
>>   Also in the main code,
>> I create an instance of the Logger class as below:
>> static
>> Logger logger = Logger.getLogger("MyLogger" );
>> And also within each fuction configure the properties as:
>> PropertyConfigurator.configure("logger.properties");
>> Can you please help me with this problem? If this is not the right place
>> to mail my doubts, can you please point me towards the right person?
>> Waiting for your reply.
>> Thanks and Regards
>> --
>> Sneha Anil Nikum
>> Don't get even with people
>> get AHEAD of them!
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> -- 
> Sneha Anil Nikum
> Don't get even with people
> get AHEAD of them!

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