So close ... I'm programmatically building a logger and having some problems with logs being rolled correctly. The RollingFileAppender is configured like: fileName = "log/collector-events.log" rollingPolicy.fileNamePattern = "log/%d{yyyy/MM/dd/kk:mm}_collector-events_%i.log.gz Additionally, I've configured a SizeAndTimeBasedFNATP to trigger at a certain size.

From my reading and re-reading of the docs I'd expect log/collector-events.log to be rolled to log/2011/03/10/14:18_collector-events_0.log.gz

Instead every minute I get a new file that looks like: log/collector-events.log82891979435328.tmp I've tried removing the compression (.gz) and standard configuration (logback.groovy) with the same result. I'm developing with logback-classic v0.9.28 on Ubuntu 10.10 and Java 1.6.0_21 thanks -- Travis Hume | Senior Software Engineer | Brightcove Inc. 200 West Mercer Street, Suite 204 | Seattle, WA 98119