Log4j2 saving file (using RollingFile appender)

Question

I am trying log4j2 to create log file to the system I am developing right, I have followed the instruction on their site and there is no error occurred when I run it, but the log is not saved on where I set it (ex. "D:\logs\app.log").

Here is My log4j.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration status="OFF">
  <appenders>
    <RollingFile name="MyRollingFile" fileName="D:/logs/app.log"
                 filePattern="logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
      <PatternLayout>
        <pattern>%d %p %C{1.} [%t] %m%n</pattern>
      </PatternLayout>
      <Policies>
        <TimeBasedTriggeringPolicy />
        <SizeBasedTriggeringPolicy size="250 MB"/>
      </Policies>
      <DefaultRolloverStrategy max="20"/>
    </RollingFile>
    <Console name="Console" target="SYSTEM_OUT">
      <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </Console>
  </appenders>
  <loggers>
    <logger name="Log_RollingFile" level="TRACE" additivity="false">
      <appender-ref ref="MyRollingFile"/>
    </logger>
    <root level="ERROR">
      <appender-ref ref="Console"/>
    </root>
  </loggers>
</configuration>

I tried to :

delete app.log to see if my configuration (D:\logs\app.log) works. When I run the application it creates app.log so I think it means that it sees the configuration and the only thing is it is NOT SAVING the log.info that I did in java application
Change root level to "TRACE", and it prints the log.info.

[EDIT:]

I have also these libraries on my classpath

log4j-api-2.0-beta3.jar
log4j-core-2.0-beta3.jar

Am I missing something on RollingFile configuration or a library (maybe)?

Thanks in advance.

darrengorman darrengorman · Accepted Answer · 2012-11-25T13:00:07

Your logger name is incorrect.

As explained in the configuration instructions you linked to, the logger should be named according to the package/classes you wish to capture logging for.

In their example the logger named com.foo.Bar would log everything from the Bar class in package com.foo with TRACE level.

Log4j2 saving file (using RollingFile appender)

1 Answers