[logback-dev] [JIRA] Commented: (LBCORE-147) RollingPolicy MaxHistory not deleting old files

[Eric Roberts (JIRA)]

    [ http://jira.qos.ch/browse/LBCORE-147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=11991#action_11991 ] 

Eric Roberts commented on LBCORE-147:
-------------------------------------

Referencing the configuration in Dieter Mueller's comment: 

    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> 
      <!-- rollover daily --> 
      <fileNamePattern>foo-%d{yyyy-MM-dd}.%i.log.zip</fileNamePattern> 
      <maxHistory>4</maxHistory> 
      <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> 
        <maxFileSize>20MB</maxFileSize> 
      </timeBasedFileNamingAndTriggeringPolicy> 
    </rollingPolicy> 

I would expect this to only keep the last 4 days of log files.  So if I had the following log files generated (assuming maxHistory=4 ):

foo-2011-03-21.0.log.zip
foo-2011-03-21.1.log.zip
foo-2011-03-21.2.log.zip
foo-2011-03-22.0.log.zip
foo-2011-03-23.0.log.zip
foo-2011-03-24.0.log.zip
foo.log

on 2011-03-26 I would expect that the logs from 2011-03-21 would be deleted and the listing would then be:

foo-2011-03-22.0.log.zip
foo-2011-03-23.0.log.zip
foo-2011-03-24.0.log.zip
foo-2011-03-25.0.log.zip
foo.log

However, this doesn't happen and I was unable to find any combination of rolling/triggering policies that would do this.  It would seem that timeBasedFileNamingAndTriggeringPolicy  ignores maxHistory.

> RollingPolicy MaxHistory not deleting old files
> -----------------------------------------------
>
>                 Key: LBCORE-147
>                 URL: http://jira.qos.ch/browse/LBCORE-147
>             Project: logback-core
>          Issue Type: Bug
>          Components: Rolling
>    Affects Versions: 0.9.18
>         Environment: linux 2.6.18 64bits apache-tomcat-6.0.20 java/jre1.6.0_18
>            Reporter: Rafael Diaz Maurin
>            Assignee: Ceki Gulcu
>
> The MaxHistory does not do the trick : the old files are not deleted at all :
> cat logging.xml
>  <appender name="IDP_ACCESS" class="ch.qos.logback.core.rolling.RollingFileAppender">
>         <File>/shibboleth-idp/logs/idp-access.log</File>
>             <Append>false</Append>
> 	<ImmediateFlush>true</ImmediateFlush>
>        <RollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
>             <FileNamePattern>/shibboleth-idp/logs/old/idp-access-%d{yyyy-MM-dd_HH-mm}.log.gz</FileNamePattern>
> 	    <MaxHistory>3</MaxHistory>
>         </RollingPolicy>
>         <layout class="ch.qos.logback.classic.PatternLayout">
>             <Pattern>%msg%n</Pattern>
>         </layout>
>     </appender>

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