Logging to an individual log file for each individual thread

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I think I have worked out the issue. The steps follow:

  • Create an an individual ILoggerRepository object (loggerRepository in this example) on each thread.
  • Set the ThreadContexts property for the log file name.
  • Use the XmlConfiguratior to configure the repository.
  • Use the LogManager to Get the named logger (in the XML configuration file) using the named LoggerRepository for that thread.

In return I get a new configured logger pointing to the respective file for that thread.

The XML configuration is the same as it was originally and shown here for completeness:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>    
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
  </configSections>
  <log4net>
    <logger name="ProductionLogger">
      <appender-ref ref="XmlAppender"/>      
      <level value="ALL"/>
    </logger>
    <appender name="XmlAppender" type="log4net.Appender.FileAppender">
      <file type="log4net.Util.PatternString" value="D:\Temp\Logs\%property{LogName}.log" />
      <immediateFlush value="true"/>
      <appendToFile value="true" />
      <layout type="log4net.Layout.SimpleLayout" />
    </appender>
  </log4net>
</configuration>

The code to create the loggers is below. Each time this code is run it is run in its own thread.

ILoggerRepository loggerRepository = LogManager.CreateRepository(logFileName + "Repository");
ThreadContext.Properties["LogName"] = logFileName;
log4net.Config.XmlConfigurator.Configure(loggerRepository);
ILog logger = LogManager.GetLogger(logFileName + "Repository", "ProductionLogger");

This seems to work with no issues so far. I will be moving forward with this solution for the moment but I will update this post if I find out anything else.

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