http_access logs

http_access logs files are prefixed with “http_access_”. These files include access information for the server. We can get the access information for webapps also from this. These logs rotates on daily basis.

In Carbon 4.0.* based products, you can disable http access logs by removing the following entry from catalina-server.xml which is located in $CARBON_HOME/repository/conf/tomcat.

<valve classname="org.apache.catalina.valves.AccessLogValve" directory="${carbon.home}/repository/logs" prefix="http_access_" suffix=".log" pattern="combined"/>

For the products which uses nhttp transport (Ex. WSO2 ESB) you also have to define the below entry in log4j.properties file.

log4j.logger.org.apache.synapse.transport.nhttp.Access=WARN

log4j.properties file is located in $CARBON_HOME/repository/conf/

How to enable wire level loggers/debug loggers.

Enable/set the following properties in ESB_HOME/repository/conf/log4j.properties to enable wire level loggers/debug loggers.

log4j.logger.org.apache.synapse.transport.nhttp.headers=DEBUG
log4j.logger.org.apache.synapse.transport.nhttp.wire=DEBUG
log4j.logger.org.apache.synapse.transport.passthru.headers=DEBUG
log4j.logger.org.apache.synapse.transport.passthru.wire=DEBUG
log4j.logger.org.apache.axis2.transport.mail=DEBUG

Came across log4j 1.2.15 dependancy problem

I was building a web application and in mid the build failed while downloading dependencies to log4j-1.2.15. The solution to overcome this was to exclude these dependencies. Here is how it was done.
My original pom.xml had this bit;

        
            log4j
            log4j
            1.2.15
        
        
            -
            -
            -
        

I added this within the dependency tag as exclusions.

    
      javax.mail
      mail
    
    
      javax.jms
      jms
    
    
      com.sun.jdmk
      jmxtools
    
    
      com.sun.jmx
      jmxri
    
  

The reason for this problem and the solution was nicely described in here