Hi David,
Configuration is below. I'm also showing the sizes of the log files, you'll notice that some of them have sizes much larger to what is specified with the MaxFileSize parameter of the triggering policy.

Thanks,
Rolando


$ ls -l /opt/log/mop.log*
-rw-r--r--    1 wps wps   13366643 May 24 09:47 /opt/log/mop.log
-rw-r--r--    1 wps wps   67121376 May 24 09:16 /opt/log/mop.log.1
-rw-r--r--    1 wps wps  849229334 May 24 09:47 /opt/log/mop.log.10
-rw-r--r--    1 wps wps   67116193 May 23 23:16 /opt/log/mop.log.2
-rw-r--r--    1 wps wps   67114690 May 23 19:54 /opt/log/mop.log.3
-rw-r--r--    1 wps wps   31160111 May 24 09:47 /opt/log/mop.log.4
-rw-r--r--    1 wps wps   67110076 May 23 17:09 /opt/log/mop.log.5
-rw-r--r--    1 wps wps   67115644 May 23 11:38 /opt/log/mop.log.6
-rw-r--r--    1 wps wps   67121760 May 23 00:31 /opt/log/mop.log.7
-rw-r--r--    1 wps wps   29536505 May 23 17:09 /opt/log/mop.log.8
-rw-r--r--    1 wps wps 2053363264 May 24 09:47 /opt/log/mop.log.9

$ ls -l /opt/log/mop.nocr*
-rw-r--r--    1 wps wps   25664997 May 24 09:47 /opt/log/mop.nocrlf.log
-rw-r--r--    1 wps wps  991283661 May 24 09:47 /opt/log/mop.nocrlf.log.1



$ cat logback.xml
<?xml version="1.0" encoding="UTF-8"?>

<!-- For assistance related to logback-translator or configuration  -->
<!-- files in general, please contact the logback user mailing list -->
<!-- at http://www.qos.ch/mailman/listinfo/logback-user             -->
<!--                                                                -->
<!-- For professional support please see                            -->
<!--    http://www.qos.ch/shop/products/professionalSupport         -->
<!--                                                                -->
<configuration scan="true">
  <appender name="SYSLOG" class="ch.qos.logback.classic.net.SyslogAppender">
    <syslogHost>localhost</syslogHost>
    <facility>LOCAL7</facility>
    <suffixPattern>%d{ISO8601} %5p [%t] \(%logger\) - %replace(%m){'\n',''}</suffixPattern>
  </appender>
  <appender name="mop" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <!--See also http://logback.qos.ch/manual/appenders.html#RollingFileAppender-->
    <File>/opt/log/mop.log</File>
    <encoder>
      <pattern>%d{ISO8601} %5p [%t] \(%logger\) - %m%n</pattern>
    </encoder>
    <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
      <maxIndex>10</maxIndex>
      <FileNamePattern>/opt/log/mop.log.%i</FileNamePattern>
    </rollingPolicy>
    <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
      <MaxFileSize>64MB</MaxFileSize>
    </triggeringPolicy>
  </appender>
  <appender name="mopnocrlf" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <File>/opt/log/mop.nocrlf.log</File>
    <encoder>
      <pattern>[%d{ISO8601}] %5p [%t] \(%logger\) - %replace(%m){'\r?\n',''}%n</pattern>
    </encoder>
    <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
      <maxIndex>1</maxIndex>
      <FileNamePattern>/opt/log/mop.nocrlf.log.%i</FileNamePattern>
    </rollingPolicy>
    <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
      <MaxFileSize>32MB</MaxFileSize>
    </triggeringPolicy>
  </appender>
  <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>%5p [%t] \(%logger\) - %m%n</pattern>
    </encoder>
  </appender>
  <logger name="mop" level="debug">
    <appender-ref ref="mop"/>
    <appender-ref ref="mopnocrlf"/>
  </logger>
  <root level="fatal">
    <appender-ref ref="stdout"/>
  </root>
</configuration>



On Fri, May 24, 2013 at 7:21 AM, David Roussel <nabble@diroussel.xsmail.com> wrote:
Roland,

That sounds strange. Can you post your logback.xml file?

David

On 23 May 2013, at 00:03, Rolando Segura <rolandosegura@gmail.com> wrote:

>  Hi I have an RollingFileAppender with a triggering policy of rotating by size when the log reaches 32MB and a maxIndex of 1, configuration below.
> It happens that after rotation logback keeps writing to both files. Is this expected? My understanding from documentation is that it will stop writing to the current log, rename it and starts writing a to a new file with the name of the File parameter.
>
> I'd appreciate your clarification if I'm not understanding well the RollingFileAppender and SizeBasedTriggering behavior.
>
> Thanks,
> Rolando
>
>
>
> <appender name="lognocrlf" class="ch.qos.logback.core.rolling.RollingFileAppender">
>     <File>/opt/log/file.nocrlf.log</File>
>     <encoder>
>       <pattern>[%d{ISO8601}] %5p [%t] \(%logger\) - %replace(%m){'\r?\n',''}%n</pattern>
>     </encoder>
>     <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
>       <maxIndex>1</maxIndex>
>       <FileNamePattern>/opt/log/file.nocrlf.log.%i</FileNamePattern>
>     </rollingPolicy>
>     <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
>       <MaxFileSize>32MB</MaxFileSize>
>     </triggeringPolicy>
>   </appender>
>
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