log4net logs header and footer twice

Question

This is my configuration:

<?xml version="1.0"?>
<configuration>
  <configSections>
    <section name="log4net"
       type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>

  <log4net>
    <appender name="LogFileAppender" type="log4net.Appender.FileAppender">
      <param name="File" value="Logs\StubLog.txt" />
      <param name="AppendToFile" value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="Header" value="[Header]&#13;&#10;" />
        <param name="Footer" value="[Footer]&#13;&#10;&#13;&#10;" />
        <param name="ConversionPattern" value="%d [%t] %-5p %c %m%n" />
      </layout>
    </appender>

    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender" >
      <layout type="log4net.Layout.PatternLayout">
        <param name="Header" value="[Header]\n" />
        <param name="Footer" value="[Footer]\n\n" />
        <param name="ConversionPattern" value="%d [%t] %-5p %c %m%n" />
      </layout>
    </appender>

    <root>
      <level value="DEBUG" />
      <appender-ref ref="LogFileAppender" />
      <appender-ref ref="ConsoleAppender" />
    </root>
    <logger name="NHibernate">
      <level value="WARN" />
    </logger>
  </log4net>

  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
  </startup>
</configuration>

And here is the log:

[Header]
[Footer]

[Header]
2012-10-04 14:22:01,203 [1] INFO  Stub.Program Enter application
2012-10-04 14:22:01,328 [1] DEBUG Stub.FrmMain Test
2012-10-04 14:22:03,265 [1] INFO  Stub.Program Exit application
[Footer]

Where does the first pair of Header / Footer coming from? Can I eliminate them?

Answer 1

Putting XmlConfigurator.Configure() at more than one places may result in having more than one header and footer pair.

XmlConfigurator.Configure() should be defined only at one place in the solution. Better approach is to put it in AssemblyInfo.cs