[logback-user] Multiple date patterns in filename pattern

Chris Pratt thechrispratt at gmail.com
Tue Feb 28 17:52:27 CET 2012

I haven't tried this at all, but have you tried:


Maybe it's the directory separator in the format string that was confusing

On Tue, Feb 28, 2012 at 8:42 AM, Chris Lemper <clemper at verical.com> wrote:

> Hi Logback users!
> I would like to store daily log files in the format:
> /logs/%d{yyyy/MM}/app.%d{yyyyMMdd}.log
> So that the end result is:
> /logs/2012/02/app.20120228.log
> That is I would like all daily log files for a given month in a single
> directory but each log file containing the full date.
> However, when I configure this filename pattern using
> ch.qos.logback.core.rolling.TimeBasedRollingPolicy, logback bases the
> rolling policy only on the first pattern:
>  INFO in c.q.l.core.rolling.DefaultTimeBasedFileNamingAndTriggeringPolicy
> - The date pattern is 'yyyy/MM' from file name pattern
> '/logs/%d{yyyy/MM}/app.%d{yyyyMMdd}.log'.
>  INFO in c.q.l.core.rolling.DefaultTimeBasedFileNamingAndTriggeringPolicy
> - Rollover at start of every month.
> Is it possible to accomplish this, even by just forcing the rollover to be
> daily (at midnight) independent of the filename pattern?  I have looked
> through the mailing lists, documentation, and source code and cannot figure
> out how or if it can be done.
> Thanks,
> Chris Lemper
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> Logback-user at qos.ch
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