jetty-rt-helios/jetty-features/org.eclipse.jetty.dist/src/main/resources/jettyhome/resources/logback-dev.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true">
<!-- Used for development purpose -->

<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
  <Target>System.out</Target>
  <layout class="ch.qos.logback.classic.PatternLayout">
    <Pattern>%d %-5p [%c] [%t] %m%n</Pattern>
  </layout>
  <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
    <level>DEBUG</level>
  </filter>
</appender>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
  <!-- See also http://logback.qos.ch/manual/appenders.html#RollingFileAppender -->
  <file>${jetty.home}/logs/jetty.log</file>
  <append>true</append>
  <bufferedIO>false</bufferedIO>
  <layout class="ch.qos.logback.classic.PatternLayout">
    <Pattern>%d %-5p [%c] [%t] %m%n</Pattern>
  </layout>
  <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
    <level>DEBUG</level>
  </filter>
  <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
    <maxIndex>15</maxIndex>
    <FileNamePattern>${jetty.home}/logs/cloud.log.%i</FileNamePattern>
  </rollingPolicy>
  <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
    <maxFileSize>10MB</maxFileSize>
  </triggeringPolicy>
</appender>

<root level="ERROR">
<!-- Set root logger level to ERROR and its only appender to CONSOLE -->
  <appender-ref ref="CONSOLE"/>
</root>

<logger name="org.eclipse.jetty" level="WARN"/>
<logger name="org.eclipse.jetty.osgi" level="INFO"/>



</configuration>