I am using log4net 1.2.10. It has been stated on this forum that from 1.2.9
onwards, different file locking schemas are available. I have configured
log4net as per examples given to use a non-default method (minimal-locking
or interprocess locking) but the immediate effect is the following error
message:

log4net:ERROR XmlHierarchyConfigurator: Cannot find Property [lockingModel]
to set object on
[log4net.Repository.Hierarchy.DefaultLoggerFactory+LoggerImpl]
log4net:ERROR [RollingFileAppender] Unable to acquire lock on file
C:\Program Files (x86)\Autoscribe\Matrix Gemini LIMS\Exe\log\Trace.log. The
process cannot access the file 'C:\Program Files (x86)\Autoscribe\Matrix
Gemini LIMS\Exe\log\Trace.log' because it is being used by another process.

My log4net.config file is:


                <logger name="Matrix.Trace">
                          
                        <level value="OFF" />
                             <lockingModel 
type="log4net.Appender.FileAppender+InterProcessLock"
/>
                        <appender-ref ref="RollingFileAppenderTRACE" />
                </logger>

                <appender name="RollingFileAppenderTRACE"
type="log4net.Appender.RollingFileAppender">
                        <file value=".\log\Trace.log" />
                        <layout type="log4net.Layout.PatternLayout">
                                <conversionPattern value="%m%newline" />
                        </layout>
                        <appendToFile value="true" />
                        <maximumFileSize value="100KB" />
                        <maxSizeRollBackups value="2" />
                </appender>
etc...

My C# application does this:

        private static readonly ILog bllDebugLog =
LogManager.GetLogger("Matrix.Trace"); //for debugging

and

            log4net.Config.XmlConfigurator.ConfigureAndWatch(new
System.IO.FileInfo("log4net.config"));

If I use the default locking method, logging does work (but I have file-lock
problems with multiple processes, which is what I am trying to resolve).

I cannot see from the log4net documentation why this should fail. What am I
doing wrong?

TIA




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