server/apps/jpa-app/sample-configuration/logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

        <contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
                <resetJUL>true</resetJUL>
        </contextListener>

        <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
                <encoder>
                        <pattern>%d{HH:mm:ss.SSS} %highlight([%-5level]) %logger{15} - %msg%n%rEx</pattern>
                        <immediateFlush>false</immediateFlush>
                </encoder>
        </appender>

        <appender name="LOG_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
                <file>/logs/james.log</file>
                <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
                    <fileNamePattern>/logs/james.%i.log.tar.gz</fileNamePattern>
                    <minIndex>1</minIndex>
                    <maxIndex>3</maxIndex>
                </rollingPolicy>

                <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
                    <maxFileSize>100MB</maxFileSize>
                </triggeringPolicy>

                <encoder>
                        <pattern>%d{HH:mm:ss.SSS} [%-5level] %logger{15} - %msg%n%rEx</pattern>
                        <immediateFlush>false</immediateFlush>
                </encoder>
        </appender>
        <root level="WARN">
                <appender-ref ref="CONSOLE" />
                <appender-ref ref="LOG_FILE" />
        </root>

        <logger name="org.apache.james" level="INFO" />

</configuration>