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http://jira.qos.ch/browse/LBCORE-242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ceki Gulcu reassigned LBCORE-242:
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Assignee: Ceki Gulcu (was: Logback dev list)
> log rollover should be configurable using %d multiple times in file name
> pattern
> --------------------------------------------------------------------------------
>
> Key: LBCORE-242
> URL: http://jira.qos.ch/browse/LBCORE-242
> Project: logback-core
> Issue Type: Improvement
> Components: Rolling
> Affects Versions: 1.0.0
> Reporter: Thomas Corte
> Assignee: Ceki Gulcu
>
> Trying to configure a log rollover with logs being *rolled daily* and put
> into a directory named "yyyy-MM", i.e. one folder for each *month* containing
> that month's logs, I'm using the following appender config:
> {noformat}
> <appender name="FILE"
> class="ch.qos.logback.core.rolling.RollingFileAppender">
> <file>app.log</file>
> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
> <!-- rollover every minute -->
> <fileNamePattern%d{yyyy-MM}/app.%d{yyyy-MM-dd}.log</fileNamePattern>
> </rollingPolicy>
> <encoder>
> <pattern>%d{"yyyy-MM-dd HH:mm:ss,SSS"} [%thread] %-5level %logger{36} -
> %msg%n%xEx</pattern>
> </encoder>
> </appender>
> {noformat}
> However, it seems as if the current logback implementation merely considers
> the first %d specification, which leads to a log rotation only once per month
> instead of the desired once per day frequency.
> I figure this is because via %d, the log rotation frequency and the file name
> pattern are somewhat tied together and seemingly can't be specified
> independently.
> It would be nice if either multiple %d specifiers would be supported, with an
> option to specify which one should be considered for the rollover period.
> Even better, it might be a good idea to support the rollover period to be
> specified separately and independently from the file name pattern; arguably,
> using the file name patterns for both is somewhat convenient, but violates
> the principle of "separation of concerns".
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