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          Difference between 
          version 11 
          and 
          version 4:
          

          
At line 1 changed 1 line.
Configuring (and more importantly, supressing) Tomcat 5.x logging
Configuring (and more importantly, supressing) Tomcat 5.x logging using Log4j
At line 3 added 3 lines.
PLEASE NOTE: These instructions are for setting up Tomcat with log4j logging, your web application
can still have its own log4j.properties deployed to its WEB-INF/classes directory..

At line 11 changed 1 line.
log4j.appender.R.layout.ConversionPattern={%p} %c{2} %x %m%n                                                                                                                                                                                                                                                                                     
log4j.appender.R.layout.ConversionPattern={%p} %c{2} %x %m%n
At line 14 changed 1 line.
You also need to copy commons-logging.jar and log4j-1.2.9.jar to $CATALINA_HOME/common/lib.
You also need to copy commons-logging.jar and log4j-1.2.9.jar to $CATALINA_HOME/common/lib.  Note,
some references say copy these files to $CATALINA_HOME/server/lib, but for me, copying to common/lib worked fine.
At line 36 added 1 line.
Note:  If you want Tomcat logging to stdout as well, then your $CATALINA_HOME/common/classes/log4j.properties file should look like this:
At line 38 added 2 lines.
{{{
log4j.rootLogger=ERROR, stdout, TOMCAT
At line 41 added 18 lines.
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{dd-MM-yy HH:mm:ss:SSS} - {%p} %c{2} Thread [%t]; %x %m%n

log4j.appender.TOMCAT=org.apache.log4j.DailyRollingFileAppender
log4j.appender.TOMCAT.File=${catalina.home}/logs/tomcat.log
log4j.appender.TOMCAT.DatePattern='.'yyyy-MM-dd
log4j.appender.TOMCAT.layout=org.apache.log4j.PatternLayout
log4j.appender.TOMCAT.layout.ConversionPattern=%d{dd-MM-yy HH:mm:ss:SSS} - {%p} %c{2} Thread [%t]; %x %m%n

}}}

For more on Tomcat 5 see here [Tomcat 5 Upgrade|Tomcat5Upgrade]

For the official Tomcat 5.5 docs on logging see here [Tomcat 5.5 Logging|http://jakarta.apache.org/tomcat/tomcat-5.5-doc/logging.html] 

If you cannot get the above instructions to work, then should remove the files you placed within the tomcat
distribution and Tomcat will revert back to using commons logging.


          

      

      

      
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+    Search Wiki:
 At line 1 changed 1 line.
-Configuring (and more importantly, supressing) Tomcat 5.x logging
+Configuring (and more importantly, supressing) Tomcat 5.x logging using Log4j
 At line 3 added 3 lines.
+PLEASE NOTE: These instructions are for setting up Tomcat with log4j logging, your web application
+can still have its own log4j.properties deployed to its WEB-INF/classes directory..
 At line 11 changed 1 line.
-log4j.appender.R.layout.ConversionPattern={%p} %c{2} %x %m%n
+log4j.appender.R.layout.ConversionPattern={%p} %c{2} %x %m%n
 At line 14 changed 1 line.
-You also need to copy commons-logging.jar and log4j-1.2.9.jar to $CATALINA_HOME/common/lib.
+You also need to copy commons-logging.jar and log4j-1.2.9.jar to $CATALINA_HOME/common/lib.  Note,
+some references say copy these files to $CATALINA_HOME/server/lib, but for me, copying to common/lib worked fine.
 At line 36 added 1 line.
+Note:  If you want Tomcat logging to stdout as well, then your $CATALINA_HOME/common/classes/log4j.properties file should look like this:
 At line 38 added 2 lines.
+{{{
+log4j.rootLogger=ERROR, stdout, TOMCAT
 At line 41 added 18 lines.
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{dd-MM-yy HH:mm:ss:SSS} - {%p} %c{2} Thread [%t]; %x %m%n
+log4j.appender.TOMCAT=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.TOMCAT.File=${catalina.home}/logs/tomcat.log
+log4j.appender.TOMCAT.DatePattern='.'yyyy-MM-dd
+log4j.appender.TOMCAT.layout=org.apache.log4j.PatternLayout
+log4j.appender.TOMCAT.layout.ConversionPattern=%d{dd-MM-yy HH:mm:ss:SSS} - {%p} %c{2} Thread [%t]; %x %m%n
+}}}
+For more on Tomcat 5 see here [Tomcat 5 Upgrade|Tomcat5Upgrade]
+For the official Tomcat 5.5 docs on logging see here [Tomcat 5.5 Logging|http://jakarta.apache.org/tomcat/tomcat-5.5-doc/logging.html]
+If you cannot get the above instructions to work, then should remove the files you placed within the tomcat
+distribution and Tomcat will revert back to using commons logging.