RE: Duplicate log entries with DLL/EXE combination

[Paul Dejardin]

How are you configuring? (programmatically, custom attribute, etc.) My guess 
would be that the 'DebugAppender' is being added twice (once in two separate 
repositories). You could use the same Repository for both assemblies. How are 
you creating loggers in code?

From: Kramer, Mat [mailto:mkra...@datasci.com]
Sent: Thursday, April 26, 2012 7:02 PM
To: log4net-user@logging.apache.org
Subject: Duplicate log entries with DLL/EXE combination

Hello,

We have a .NET executable and a DLL assembly that both use log4net.  One of the 
complications is that the DLL is also called from an unmanaged C++ application 
and we want logging to work in that setting.  Our current solution works, but I 
get many duplicate log entries when I am running the .NET EXE with the .NET 
DLL.  The configurations are below.  Any ideas for how to fix this?  I have to 
admit I don't really understand how it works now.

Thanks!

Application configuration

<log4net>

  <appender name="DebugAppender" type="log4net.Appender.RollingFileAppender">
    <file value="log-file-fauxnemah.txt" />
    <appendToFile value="true" />
    <rollingStyle value="Size" />
    <maxSizeRollBackups value="10" />
    <maximumFileSize value="50MB" />
    <staticLogFileName value="true" />
    <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date %7level [%2thread] %message%newline" />
    </layout>
  </appender>

  <root>
    <level value="ALL" />
    <appender-ref ref="DebugAppender" />
  </root>

</log4net>

DLL configuration

<log4net>

  <appender name="DebugAppender" type="log4net.Appender.RollingFileAppender">
    <file value="TruSense//log-file-trusenseP3P.txt" />
    <appendToFile value="true" />
    <rollingStyle value="Size" />
    <maxSizeRollBackups value="10" />
    <maximumFileSize value="50MB" />
    <staticLogFileName value="true" />
    <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date %7level [%2thread] %message%newline" />
    </layout>
  </appender>

  <root>
    <level value="ALL" />
    <appender-ref ref="DebugAppender" />
  </root>

  <logger name="DSI.DACSS.Transformers.FahiTransformer" additivity="false">
    <level value="NONE" />
  </logger>

  <logger name="DSI.DACSS.Framework.Logger.SystemLogger" additivity="false">
    <level value="ALL" />
    <appender-ref ref="DebugAppender" />
  </logger>

</log4net>


-Mat