Log4j Configuration

log4j.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="FILE" class="org.apache.log4j.DailyRollingFileAppender">
        <errorHandler class="org.apache.log4j.helpers.OnlyOnceErrorHandler"/>
        <param name="File" value="/var/log/tomcat7/chat.log"/>
        <param name="Append" value="true"/>
        <param name="Threshold" value="INFO"/>
        <param name="DatePattern" value="'.'yyyy-MM-dd-a"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
        </layout>
    </appender>

    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <param name="Target" value="System.out"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %5p [%X{sessionId}] %c{1} - %m%n"/>
        </layout>
    </appender>

    <root>
        <!--<appender-ref ref="FILE"/>-->
        <appender-ref ref="CONSOLE"/>
    </root>
</log4j:configuration>