Adding log4j categories and appenders to jboss logging subsystem for jboss 7.x

[neeraj587]

Hi,

I do not want to maintain a separate configuration file for logging (log4j.xml or log4j.properties). So, is it possible that I could log4j specific logging details to the logging subsystem used in Jboss?

From what I have read so far; I am guessing that is probably not possible.

Thank you

[jamezp]

If you want to use log4j as a logging facade all you need to do is ensure you don't have a log4j configuration file in your deployment and don't include a log4j library in your deployment. As long as you do those two things it should work without a problem and the configuration in the logging subsystem will be used.

--

James R. Perkins

[neeraj587]

Hi James,

Thanks for the reply. I will just elaborate the question more. I want to add the log4j specific properties to the logging subsystem in the jboss server standalone.xml file.

Some example properties are :

# Set Category specific property

log4j.category.kodo.MetaData=INFO

# Set appender specific options
log4j.appender.MaxFileSize=10mb

From what I understand from your solution on this question Re: jboss-eap-6.1 + log4j configuration ; that it is not possible.

Like adding something like :

<appender name="App1Log" class="org.apache.log4j.FileAppender">
  <errorHandler 
  class="org.jboss.logging.util.OnlyOnceErrorHandler"/>
  <param name="Append" value="false"/>
  <param name="File"
  value="${jboss.server.home.dir}/log/app1.log"/>
  <layout class="org.apache.log4j.PatternLayout">
  <param name="ConversionPattern"
  value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/>
  </layout>
  </appender>

Is this configuration valid for Jboss EAP 6.1 ?

Thanks

[jamezp]

Ah gotcha, no that won't work. However you can use the logging subsystem to do the same thing you're doing. The configuration would look like;

        <subsystem xmlns="urn:jboss:domain:logging:1.2">
          ...
          <!-- defines a rotating file handler -->
          <size-rotating-file-handler name="App1Log" autoflush="true">
            <file relative-to="jboss.server.log.dir" path="app1.log"/>
            <formatter>
              <pattern-formatter pattern="%d{HH:mm:ss,SSS} %-5p [%c{1}] %m%n"/>
            </formatter>
            <rotate-size value="10mb"/>
            <max-backup-index value="5"/>
            <append value="false"/>
          </size-rotating-file-handler>


          <!-- defines a logger -->
          <logger category="kodo.MetaData">
            <level name="INFO"/>
          </logger>
          ...
        </subsystem>

I would however suggest having a look at adding loggers and handlers using CLI or the web console. CLI has tab complete which makes it very useful IMO.

With EAP 6 you can use log4j appenders as custom-handler's. I would however suggest if you're just using file handlers or a console handler use the provided handlers. They will be more efficient.

--

James R. Perkins

[neeraj587]

Thanks James...got it..