Log config file

log4j.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">

    <!-- ================================= -->
    <!-- Preserve messages in a local file -->
    <!-- ================================= -->

    <appender name="ASYNC" class="org.apache.log4j.AsyncAppender">
        <param name="blocking" value="false"/>
        <appender-ref ref="FILE"/>
    </appender>

    <!-- A time/date based rolling appender -->
    <appender name="FILE" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="File" value="/var/log/graph-agent/log4j.log"/>
        <param name="Append" value="true"/>

        <!-- Rollover at midnight each day -->
        <param name="DatePattern" value="'.'yyyy-MM-dd"/>

        <!--param name="Threshold" value="WARN"/-->

        <layout class="org.apache.log4j.PatternLayout">
            <!-- The default pattern: Date Priority [Category] Message\n -->
            <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
        </layout>
    </appender>

    <!-- ============================== -->
    <!-- Append messages to the console -->
    <!-- ============================== -->

    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <param name="Threshold" value="TRACE"/>
        <param name="Target" value="System.out"/>

        <layout class="org.apache.log4j.PatternLayout">
            <!-- The default pattern: Date Priority [Category] Message\n -->
            <param name="ConversionPattern" value="%d %-5p [%c{1}] (%t) %m%n"/>
        </layout>
        <filter class="org.apache.log4j.varia.StringMatchFilter">
            <param name="StringToMatch" value="STARTUP:" />
            <param name="AcceptOnMatch" value="true" />
        </filter>
        <filter class="org.apache.log4j.varia.DenyAllFilter"/>
    </appender>

    <!-- ================ -->
    <!-- Limit categories -->
    <!-- ================ -->

    <category name="org.apache.http">
        <priority value="INFO"/>
    </category>

    <category name="org.jboss.netty">
        <priority value="INFO"/>
    </category>

    <!-- ======================= -->
    <!-- Setup the Root category -->
    <!-- ======================= -->

    <root>
	    <priority value="ERROR"/>
        <!--<appender-ref ref="CONSOLE"/>-->
        <!--<appender-ref ref="FILE"/>-->
        <appender-ref ref="ASYNC"/>
    </root>

</log4j:configuration>