bigbluebutton-Github/bigbluebutton-web/grails-app/conf/logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <layout class="ch.qos.logback.classic.PatternLayout">
      <Pattern>%d{"yyyy-MM-dd'T'HH:mm:ss.SSSXXX"} %-5level %logger{35} - %msg%n</Pattern>
    </layout>
</appender>

  <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <File>logs/bbb-apps-akka.log</File>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
      <FileNamePattern>/var/log/bigbluebutton/bbb-web-akka.%d{yyyy-MM-dd}.log</FileNamePattern>
      <!-- keep 14 days worth of history -->
      <MaxHistory>14</MaxHistory>
    </rollingPolicy>
    <layout class="ch.qos.logback.classic.PatternLayout">
      <Pattern>%d{"yyyy-MM-dd'T'HH:mm:ss.SSSXXX"} %-5level %logger{35} - %msg%n</Pattern>
    </layout>
  </appender>
      
    <logger name="akka" level="INFO" />
    <logger name="org.bigbluebutton" level="DEBUG" />

    <root level="DEBUG">
        <appender-ref ref="STDOUT"/>
        <appender-ref ref="FILE" />
    </root>
</configuration>