You are probably logging from several AppDomains to the same log file. This is not really supported by Log4Net, not even with the 'minimal' locking style. Try the http://log4netremotelogging.codeplex.com/ which solves this and other issues whith several log sources.
Svante On Tue, May 3, 2011 at 12:34 AM, Hankey, Chris < chris.han...@transamerica.com> wrote: > We have an issue where log4net is rolling over log files after one entry. > So based upon the config below, we end up with 25 1k log files. This does > not always happen. The pattern seems to be that when we restart the site, > log4net either works OK or does not & continues that way until we restart > the app pool again. Any clues? We are using v 1.2.1 > > > > > > > > Thanks > > > > Chris > > > > > > <log4net> > > <appender name="RollingLogFileAppender" > type="log4net.Appender.RollingFileAppender"> > > <file value="E:\\Websites\\ABD\\ABDLog\\prodjune10\\TestLog.txt" /> > > <appendToFile value="true" /> > > <lockingModel type="log4net.Appender.FileAppender+MinimalLock" /> > > <RollingStyle value="Composite" /> > > <DatePattern value="yyyyMMdd" /> > > <maximumFileSize value="8MB" /> > > <maxSizeRollBackups value="25" /> > > <layout type="log4net.Layout.PatternLayout"> > > <conversionPattern value="%level %date %-4timestamp {%thread} > [%logger] - %message%newline" /> > > </layout> > > </appender> > > >