No that is not supported. Note that there are no java APIs (that I know of) for modifying a zip file. The only way to add a file to an existing zip file is to create a new zip file with the file added and then delete the old zip file. David

On 1 Oct 2013, at 09:57, PaSik <tompasik@poczta.fm> wrote:

Hi,

Could you please tell me whether it's possible to configure logback in such a way that multiple log files are compressed to a single, possibly already existing archive (existing because logback itself has already put some log Giles in this archive).

The current use case is that I'd like to have a RollingFileAppender with SizeAndTimeBasedFNATP with fileNamePattern=mylog-%d{yyyy-MM-dd}.%i.zip and have the log files archived to mylog-%d{yyyy-MM-dd}.zip.

Another use case would be an app that doesn't produce much logs and the loga would be produced to daily files but the archives would be monthly.

Thanks, Tom _______________________________________________ Logback-user mailing list Logback-user@qos.ch http://mailman.qos.ch/mailman/listinfo/logback-user