<appender name="sizeAndTimeBased" class="ch.qos.logback.core.rolling.RollingFileAppender">
  <file>./logs/ExtensibleServices.log</file>
  <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    <fileNamePattern>./logs/ExtensibleServices.%d{yyyyMMdd}.%i.log</fileNamePattern>
    <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
      <maxFileSize>1MB</maxFileSize>
      <maxHistory>2</maxHistory>  <!--this is a bug-->
    </timeBasedFileNamingAndTriggeringPolicy>
  </rollingPolicy>
  <encoder>
    <pattern>%d{yyyy-MM-dd}T%d{HH:mm:ss.SSS} %msg%n</pattern>
  </encoder>
</appender>