Is this a known problem? We are using log4net 1.2.0 beta 8.
When using a RollingFileAppender that's configured to roll by Date, logs created before noon on a given day are overwritten by logs created after noon on that day. So if you look at a log file before noon, you'll see logged events for that morning, but an event that is logged after 12:00pm overwrites the file so that all logs appear to start at 12:00pm.
Here's an appender that causes this problem:
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<param name="DatePattern" value="yyyyMMdd" />
<param name="File" value="Log\\" />
<param name="AppendToFile" value="true" />
<param name="Threshold" value="Debug" />
<param name="MaxSizeRollBackups" value="30" />
<param name="RollingStyle" value="Date" />
<param name="StaticLogFileName" value="false" />
<param name="CountDirection" value="-1" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %c [%x] - %m%n" />
</layout>
</appender>
