Enhanced log4j monitoring for DXP 7.1 - tomcat/webapps/ROOT/WEB-INF/classes/META-INF/portal-log4j-ext.xml

gistfile1.txt

<?xml version="1.0"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender class="org.apache.log4j.rolling.RollingFileAppender" name="TEXT_FILE">
        <!-- Inspired by: http://www.baeldung.com/java-logging-rolling-file-appenders -->

        <!--
            === What happens when current log file needs to be rotated? ===
        -->

        <!-- (A)
            * archived files named with index (*.0.log.gz - *.12.log.gz),
            * archived files gzipped,
            * oldest archived files removed (overwritten by newer ones) -->

        <rollingPolicy class="org.apache.log4j.rolling.FixedWindowRollingPolicy">
            <param name="ActiveFileName" value="@liferay.home@/logs/[email protected]@.current.log" />
            <param name="FileNamePattern" value="@liferay.home@/logs/[email protected]@.%i.log.gz" />
            <param name="MinIndex" value="0" />
            <param name="MaxIndex" value="12" />    <!-- 13 is the maximum size of the window -->
        </rollingPolicy>

        <!-- (B)
            * archived files named with daily timestamp + int (millis - in case there
                are more files to be archived on the same day)
            * archived files gzipped,
            * no old archived files removed (kept gzipped indefinitely) -->

        <!--<rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy">-->
            <!--<param name="ActiveFileName" value="@liferay.home@/logs/[email protected]@.current.log" />-->

            <!--&lt;!&ndash; gzip log files when rotation happens - when new log file is started &ndash;&gt;-->
            <!--<param name="FileNamePattern" value="@liferay.home@/logs/[email protected]@.%d{yyyy-MM-dd}.%i.log.gz" />-->
        <!--</rollingPolicy>-->

        <!-- (C) - original in Liferay
            * archived files named with daily timestamp,
            * archived files NOT gzipped,
            * no old archived files removed (kept non-gzipped indefinitely) -->

        <!--<rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy">-->
        <!--<param name="FileNamePattern" value="@liferay.home@/logs/[email protected]@.%d{yyyy-MM-dd}.log" />-->
        <!--</rollingPolicy>-->


        <!--
            === When is current log file rotated? ===
        -->

        <!-- (a)
            * when its size limit is reached -->

        <triggeringPolicy class="org.apache.log4j.rolling.SizeBasedTriggeringPolicy">
            <!-- make sure the active log file won't grow out of bounds -->
            <!-- must be in bytes:
                    104857600 ~ 100 MB (100 * 1024 * 1024 B) -->
            <param name="MaxFileSize" value="104857600" />
        </triggeringPolicy>

        <!-- (b) - original in Liferay
            * daily on midnight (based on TimeBasedRollingPolicy);
            * this is used when no explicit 'triggeringPolicy' is defined,
            * comment out (a) above if you want to use this strategy -->


        <!--
            === What is the format of every logged event? ===
        -->

        <layout class="org.apache.log4j.EnhancedPatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %-5p [%t][%c{1}:%L] %m%n" />
        </layout>
    </appender>

    <root>
        <priority value="INFO" />
        <appender-ref ref="CONSOLE" />
        <appender-ref ref="TEXT_FILE" />
        <!-- no XML_FILE appender, never used -->
    </root>
</log4j:configuration>