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From Jacob Kjome <h...@visi.com>
Subject Re: multiple apps single log4j.xml
Date Mon, 23 Mar 2009 08:03:27 GMT
On 3/23/2009 12:01 AM, ravindra wrote:
> Thanks for the reply Jake,
> 
> 	Let me explain clearly about my configuration. I have placed
> log4j.xml file in Tomcat's conf folder and log4j.jar is in lib directory of
> Tomcat. And I have another log4j.jar in each of the 3 applications in
> webapps.In Tomcat's conf directory servers log4j.properties file is also
> there.
> 
> 	The 4 log files of 3 applications are getting generated but, data is
> 
> Logging into only root logger, others is empty. And Tomcat's server logging
> is not working.
> 

First thing, Tomcat's logging mechanism is a whole separate conversation (and also
depends on the Tomcat version you are using).  Please read Tomcat's docs about how
to enable Log4j for it's own logging.  Alos, No matter what Tomcat version you
use, Log4j *cannot* find its configuration file in Tomcat's "conf" directory.  It
"has" to be in the classpath.

Second, for individual logging of your apps, you have not made clear where they
are finding the Log4j config file.  Again, for auto-configuration, the config file
*has* to be somewhere in the classpath; either in the global server classpath or
the webapp's classpath, such as WEB-INF/classes.

Try running the server with "java -Dlog4j.debug=true ...".   This will tell you
where Log4j is picking up (or not picking up) its config file.


Jake

> -----Original Message-----
> From: Jacob Kjome [mailto:hoju@visi.com] 
> Sent: Sunday, March 22, 2009 11:55 PM
> To: Log4J Users List
> Subject: Re: multiple apps single log4j.xml
> 
> On 3/22/2009 5:39 AM, ravindra wrote:
>> Hi Everybody,
>>
>>  
>>
>> I am trying to configure log4j for multiple applications using a single
>> log4j.xml.I placed log4j.xml in Tomcat's conf directory and placed a
>> log4j.jar in
>>
>> Tomcat's lib directory. It is creating the log files, but it is not
> writing
>> to it.
>>
> 
> I'm surprised that the log files are being created unless you rigged
> Tomcat's
> startup scripts to include Tomcat's "conf" directory in the classpath.
> Log4j has
> no way of knowing where log4j.xml is unless it is in a directory (or root of
> a jar
> file) that is in the classpath... or you performed manual configuration.
> Are you
> sure you haven't deployed another copy of log4j.xml along with one of your
> jar files?
> 
> Jake
> 
>>  
>>
>> <?xml version="1.0" encoding="UTF-8" ?>
>>
>> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
>>
>> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
>>
>>  
>>
>>   <!-- ===================================================================
>> -->
>>
>>   <!--  Appenders
>> -->
>>
>>   <!-- ===================================================================
>> --> 
>>
>>   
>>
>>    <appender name="APP1" class="org.apache.log4j.RollingFileAppender">
>>
>>     <param name="File"
>>
>>            value="C:/dtu/logs/APP1.log" />
>>
>>     <param name="Append" value="true" />
>>
>>     <param name="MaxFileSize" value="10MB" />
>>
>>     <param name="MaxBackupIndex" value="10" />
>>
>>     <param name="Threshold" value="ALL" />
>>
>>  
>>
>>     <layout class="org.apache.log4j.PatternLayout">
>>
>>             <param name="ConversionPattern" value="%d %-5p [%C{1}.%M:%L]
>> %m%n" />
>>
>>     </layout>          
>>
>>   </appender>
>>
>>   
>>
>>   <appender name="APP2" class="org.apache.log4j.RollingFileAppender">
>>
>>     <param name="File"   value="C:/dtu/logs/APP2.log" />
>>
>>     <param name="Append" value="true" />
>>
>>     <param name="MaxFileSize" value="10MB" />
>>
>>     <param name="MaxBackupIndex" value="10" />
>>
>>     <param name="Threshold" value="ALL"/>
>>
>>     
>>
>>     <layout class="org.apache.log4j.PatternLayout">
>>
>>     <param name="ConversionPattern" value="%d %-5p [%t] [%C{1}.%M:%L]
> %m%n"
>> />
>>
>>     </layout>
>>
>>  
>>
>>   </appender>
>>
>>   
>>
>>   <appender name="APP3" class="org.apache.log4j.RollingFileAppender">
>>
>>     <param name="File"   value="C:/dtu/logs/APP3.log" />
>>
>>     <param name="Append" value="true" />
>>
>>     <param name="MaxFileSize" value="10MB" />
>>
>>     <param name="MaxBackupIndex" value="10" />
>>
>>     <param name="Threshold" value="ALL"/>
>>
>>     
>>
>>     <layout class="org.apache.log4j.PatternLayout">
>>
>>     <param name="ConversionPattern" value="%d %-5p [%t] [%C{1}.%M:%L]
> %m%n"
>> />
>>
>>     </layout>
>>
>>  
>>
>>   </appender>
>>
>>   
>>
>>   <appender name="APP4" class="org.apache.log4j.RollingFileAppender">
>>
>>     <param name="File"   value="C:/dtu/logs/APP4.log" />
>>
>>     <param name="Append" value="true" />
>>
>>     <param name="MaxFileSize" value="10MB" />
>>
>>     <param name="MaxBackupIndex" value="10" />
>>
>>     <param name="Threshold" value="ALL"/>
>>
>>     <layout class="org.apache.log4j.PatternLayout">
>>
>>     <param name="ConversionPattern" value="%d %-5p [%t] [%C{1}.%M:%L]
> %m%n"
>> />
>>
>>     </layout>
>>
>>  
>>
>>   </appender>
>>
>>   
>>
>>   
>>
>>   <!-- ===================================================================
>> -->
>>
>>   <!--  Loggers
>> -->
>>
>>   <!-- ===================================================================
>> -->
>>
>>  
>>
>>   <logger name="com.dtu">
>>
>>     <level value="DEBUG"/>
>>
>>              <appender-ref ref="APP1"/>
>>
>>   </logger>
>>
>>  
>>
>>    <logger name="com.sms">
>>
>>     <level value="DEBUG"/>
>>
>>             <appender-ref ref="APP4"/>
>>
>>   </logger>
>>
>>   
>>
>>   
>>
>>   <logger name="com.vtu.gsm">
>>
>>     <level value="DEBUG"/>
>>
>>             <appender-ref ref="APP3"/>
>>
>>   </logger>
>>
>>  
>>
>>    <logger name="com.vtu.gps">
>>
>>     <level value="DEBUG"/>
>>
>>             <appender-ref ref="APP4"/>
>>
>>   </logger>
>>
>>   
>>
>>   <root>
>>
>>     <level value="DEBUG"/>
>>
>>     <appender-ref ref="APP1"/>
>>
>>   </root>
>>
>>   
>>
>>   
>>
>> </log4j:configuration>
>>
>>
> 
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