When I change your code to: for (int i1 = 0; i1 <= 20; i1++) { for (int i2 = 0; i2 < 1000; i2++) { log.Debug("" + i2 + " " + superLongText); } }
the 3 files are created. The small file size after 20 runs is probably caused because one of the files is 10mb and the other file has been reset. I'm not sure why that occurs but it seems like the RFA maintains some sort of internal roll over state that isn't preserved when the program starts up again. ________________________________ From: Lee Chun Kit <chunki...@gmail.com> To: log4net-user@logging.apache.org Sent: Monday, April 4, 2011 5:54 AM Subject: RollingFileAppender does not seem to preserve old log messages Here is the configuration xml I am using: <log4net debug="true"> <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender"> <lockingModel type="log4net.Appender.FileAppender+ExclusiveLock" /> <file value="./output/" /> <appendToFile value="true" /> <rollingStyle value="Composite" /> <datePattern value="'LoggerTest'yyyyMMdd'.log'" /> <maxSizeRollBackups value="-1" /> <maximumFileSize value="10MB" /> <staticLogFileName value="false" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%level] %message%newline" /> </layout> </appender> <logger name="Logger" additivity="false"> <level value="DEBUG" /> <appender-ref ref="RollingLogFileAppender" /> </logger> </log4net> --- Here are the significant portions of my code: static readonly string superLongText = new string('a', 1024); static readonly log4net.ILog log = log4net.LogManager.GetLogger("Logger"); static void Main(string[] args) { log4net.Config.XmlConfigurator.Configure("./TestConfig.xml"))); for (int i = 0; i < 1000; i++) { log.Debug("" + i + " " + superLongText); } } --- Total size (in bytes) of the generated logs after each execution of my program: 01: 1061890 02: 2123780 03: 3185670 04: 4247560 05: 5309450 06: 6371340 07: 7433230 08: 8495120 09: 9557010 10: 10618900 11: 11680790 12: 12742680 13: 13804570 14: 14866460 15: 15928350 16: 16990240 17: 18052130 18: 19114020 19: 20175910 20: 10751650 --- log files: LoggerTest20110404.log LoggerTest20110404.log.1 --- After run 19, LoggerTest20110404.log is 9463KB (almost 10MB), and LoggerTest20110404.log.1 is 10241KB. After run 20, LoggerTest20110404.log is 260KB, and LoggerTest20110404.log.1 is 10241KB. However, file LoggerTest20110404.log.2 is not created (I expect the logger to do so). Does anyone know why is it the case that the log information is not preserved between run 19 and run 20? May I know if it is an error in my xml configuration or a limitation of the RollingFileAppender and the combination of settings I used? Thanks. Regards, Chun Kit