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https://issues.apache.org/jira/browse/LOG4J2-573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13941755#comment-13941755
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Steven McCoy commented on LOG4J2-573:
-------------------------------------
A misunderstanding of the documentation I believe as the interval parameter is
not clear:
{quote}
How often a rollover should occur based on the most specific time unit in the
date pattern.
{quote}
In my vocabulary "_most specific time unit_" has limited meaning, is it
supposed to imply the smallest time unit?
The enhancement request would then be about disassociating the time trigger
with the file pattern. For example can the logs be rolled every 6 hours but
the files be named {{my.1.log}}, {{my.2.log}}, etc.
> TimeBasedTriggeringPolicy does not accept %i increment FilePattern
> ------------------------------------------------------------------
>
> Key: LOG4J2-573
> URL: https://issues.apache.org/jira/browse/LOG4J2-573
> Project: Log4j 2
> Issue Type: Improvement
> Components: Appenders
> Affects Versions: 2.0-rc1
> Reporter: Steven McCoy
> Priority: Minor
>
> The following configuration should be valid but raises an exception because
> the filePattern contains no date however it does contain an increment pattern.
> {code:xml}
> <RollingRandomAccessFile name="File" fileName="${filename}"
> filePattern="logs/icap.log-%i">
> <PatternLayout pattern="%m%n"/>
> <Policies>
> <OnStartupTriggeringPolicy />
> <TimeBasedTriggeringPolicy interval="12" modulate="true"/>
> <SizeBasedTriggeringPolicy size="500 MB"/>
> </Policies>
> <DefaultRolloverStrategy fileIndex="min" max="3"/>
> </RollingRandomAccessFile>
> {code}
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