如何从写两个单独的文件停止log4net的 [英] How to stop log4net from writing to two separate files

问题描述

我用下面的log4net的配置。我试着写性能日志到一个单独的文件，但输出将两个文件。即使我specifiying：

 私有静态只读log4net.ILog日志= log4net.LogManager.GetLogger（PerformanceMetricsLogger）;
 

如何停止log4net的写入到默认的appender在这种情况下？

 ＆LT; log4net的＆GT;
  ＆LT;！ - 定义了一些输出追加程序 - ＆GT;
  ＆LT;附加目的地名称=RollingFileAppender进行式=log4net.Appender.RollingFileAppender＆GT;
    ＆LT;文件类型=log4net.Util.PatternString值=C：\ ilap \ IlapAdServerLog_％属性{log4net的：主机名} .TXT/＆GT;
    ＆LT; appendToFile值=真/＆GT;
    ＆LT; rollingStyle值=大小/＆GT;
    ＆LT; maxSizeRollBackups值= -  1/＆GT;
    ＆LT; maximumFileSize值=2000KB/＆GT;
    ＆LT; staticLogFileName值=真/＆GT;
    ＆LT;布局类型=log4net.Layout.PatternLayout＆GT;
      ＆LT; conversionPattern值=％DATE [％线程]％-5level％记录[％属性{NDC}]  - ％消息％换行/＆GT;
    ＆LT; /布局＆GT;
  ＆LT; /附加器＆GT;

  ＆LT;附加目的地名称=RollingFileAppenderForPerformanceTYPE =log4net.Appender.RollingFileAppender＆GT;
    ＆LT;文件类型=log4net.Util.PatternString值=C：\ ilap \ IlapAdServerLog_％属性{log4net的：主机名} .peformance.log/＆GT;
    ＆LT; appendToFile值=真/＆GT;
    ＆LT; rollingStyle值=大小/＆GT;
    ＆LT; maxSizeRollBackups值= -  1/＆GT;
    ＆LT; maximumFileSize值=2000KB/＆GT;
    ＆LT; staticLogFileName值=真/＆GT;
    ＆LT;布局类型=log4net.Layout.PatternLayout＆GT;
      ＆LT; conversionPattern值=％DATE [％线程]％-5level％记录[％属性{NDC}]  - ％消息％换行/＆GT;
    ＆LT; /布局＆GT;
  ＆LT; /附加器＆GT;

  ＆LT;！ - 设置根类别，添加附加目的地，并设置默认级别 - ＆GT;
  ＆LT;根＆GT;
    ＆LT;电平值=DEBUG/＆GT;
    ＆LT;附加目的地-REF REF =RollingFileAppender进行/＆GT;
  ＆LT; /根＆GT;

  ＆LT;记录器名称=PerformanceMetricsLogger＆GT;
    ＆LT;电平值=DEBUG/＆GT;
    ＆LT;附加目的地-REF REF =RollingFileAppenderForPerformance/＆GT;
  ＆LT; /记录器＆GT;
＆LT; / log4net的＆GT;
 

解决方案

下面根的所有记录器级别继承根记录的附加目的地。这就是为什么你的消息都会被记录两次。要禁用记录器继承设置其<一个href="http://logging.apache.org/log4net/release/sdk/log4net.Repository.Hierarchy.Logger.Additivity.html">additivity参数设置为false：

 ＆LT;记录器加=假NAME =PerformanceMetricsLogger＆GT;
    ＆LT;电平值=DEBUG/＆GT;
    ＆LT;附加目的地-REF REF =RollingFileAppenderForPerformance/＆GT;
  ＆LT; /记录器＆GT;
 

I'm using the below log4net configuration. I'm trying to write performance logs to a separate file but the output is going to both files. Even though I'm specifiying:

private static readonly log4net.ILog log = log4net.LogManager.GetLogger("PerformanceMetricsLogger");

How do I stop log4net from writing to the default appender in this case?

<log4net>
  <!-- Define some output appenders -->
  <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">    
    <file type="log4net.Util.PatternString" value="c:\ilap\IlapAdServerLog_%property{log4net:HostName}.txt" />
    <appendToFile value="true" />
    <rollingStyle value="Size" />
    <maxSizeRollBackups value="-1" />
    <maximumFileSize value="2000KB" />
    <staticLogFileName value="true" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
    </layout>
  </appender>

  <appender name="RollingFileAppenderForPerformance" type="log4net.Appender.RollingFileAppender">
    <file type="log4net.Util.PatternString" value="c:\ilap\IlapAdServerLog_%property{log4net:HostName}.peformance.log" />
    <appendToFile value="true" />
    <rollingStyle value="Size" />
    <maxSizeRollBackups value="-1" />
    <maximumFileSize value="2000KB" />
    <staticLogFileName value="true" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
    </layout>
  </appender>

  <!-- Setup the root category, add the appenders and set the default level -->
  <root>
    <level value="DEBUG" />
    <appender-ref ref="RollingFileAppender" />
  </root>

  <logger name="PerformanceMetricsLogger">
    <level value="DEBUG" />
    <appender-ref ref="RollingFileAppenderForPerformance" />
  </logger>
</log4net>

解决方案

All the logger levels below root inherit the appenders from the root logger. This is why your messages are logged twice. To disable inheritance of your logger set its additivity parameter to false:

 <logger additivity="false" name="PerformanceMetricsLogger">
    <level value="DEBUG" />
    <appender-ref ref="RollingFileAppenderForPerformance" />
  </logger>

这篇关于如何从写两个单独的文件停止log4net的的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！