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http://jira.qos.ch/browse/LBCORE-147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12112#action_12112
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Alexander Lauper commented on LBCORE-147:
-----------------------------------------
Greg,
Relying on the application is only required when following my suggestion #2.
As I always use daily rollover and I will add a "system status"-log entry (free
memory and disk space) anyway I wouldn't have to parse logback configuration in
my case. But you are right, we should find a solution which fits the majority
of use cases. I didn't think of the problems you mentioned ...
However, as I heard, Ceki would rather follow the maxQ solution. So don't worry
:-) . The maxQ solution copes easily with quiescent periods (as long as the
quiescent period is shorter than maxQ) without having to rely on the
application.
I am not sure whether we should separate the problems:
Assumed that logback would never create "gaps" in log history no matter how
long a quiescent period is (e.g. by creating empty log files when no logging
event occured during the rollover period before) the existing mechanism would
almost work. Only an additional check on application startup would be required
to cope with powerfail-, machine-out-of-service-,
application-not-running-periods longer than a rollover period.
Kind regards,
Alex
> 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
> Attachments: TimeBasedRollingWithArchiveRemovalTest.java
>
>
> 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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