Log4Net 将两个不同级别的日志记录到同一记录器的两个不同附加程序 [英] Log4Net Logging of two different levels to two different appenders for the same logger
问题描述
我们有两个不同的 asp.net 应用程序，启用了 Log4net 日志记录.他们都有相同版本的 Log4Net，1.2.10.0.
We have two different asp.net applications with Log4net logging enabled. They both have the same version of Log4Net, 1.2.10.0.
我们已经向它们添加了 log4net.Appender.AdoNetAppender 记录器，并希望将根记录器的信息级别记录到它，但也想记录到根记录器的错误级别到文件附加程序.我们的配置如下；
We have added the log4net.Appender.AdoNetAppender logger to both of them and want to log Info level to it for the root logger, but also want to log to the Error level for a root logger to a file appender.
Our configuration is as follows;
<?xml version="1.0" encoding="utf-8"?>
<log4net>
<appender name="filelogAppender" type="log4net.Appender.RollingFileAppender" >
<file value="..logsapp.debug.log" />
<encoding value="utf-8" />
<staticLogFileName value="true" />
<datePattern value=".yyyyMMdd.'log'" />
<rollingStyle value="Composite" />
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
<appendToFile value="true" />
<maximumFileSize value="1MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%3thread] %-5level %property{log4net:HostName} [%property{Revision}] %logger %message%n" />
</layout>
</appender>
<!--
use [DB]
GO
CREATE TABLE [dbo].[Log] (
[Id] [int] IDENTITY (1, 1) NOT NULL,
[Date] [datetime] NOT NULL,
[Application][varchar] (255) NOT NULL,
[Thread] [varchar] (255) NOT NULL,
[Level] [varchar] (50) NOT NULL,
[Logger] [varchar] (255) NOT NULL,
[Server][varchar](255) NOT NULL,
[Revision][varchar](50) NOT NULL,
[Message] [varchar] (4000) NOT NULL,
[Exception] [varchar] (2000) NULL
)
-->
<appender name="dbLogAppender" type="log4net.Appender.AdoNetAppender" xdt:Transform="InsertBefore(/log4net/root)">
<bufferSize value="100" />
<connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<connectionString value="data source=sqlserver;initial catalog=DB;integrated security=false;persist security info=True;User ID=USER;Password=PASSWORD" />
<commandText value="INSERT INTO Log ([Date],[Application],[Thread],[Level],[Logger],[Server],[Revision],[Message],[Exception]) VALUES (@log_date,'WebApp1', @thread, @log_level, @logger, @server, @revision, @message, @exception)" />
<parameter>
<parameterName value="@log_date" />
<dbType value="DateTime" />
<layout type="log4net.Layout.RawTimeStampLayout" />
</parameter>
<parameter>
<parameterName value="@thread" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%thread" />
</layout>
</parameter>
<parameter>
<parameterName value="@log_level" />
<dbType value="String" />
<size value="50" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%level" />
</layout>
</parameter>
<parameter>
<parameterName value="@logger" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%logger" />
</layout>
</parameter>
<parameter>
<parameterName value="@server" />
<dbType value="String" />
<size value="255" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%property{log4net:HostName}"/>
</layout>
</parameter>
<parameter>
<parameterName value="@revision" />
<dbType value="String" />
<size value="50" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%property{Revision}"/>
</layout>
</parameter>
<parameter>
<parameterName value="@message" />
<dbType value="String" />
<size value="4000" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%message" />
</layout>
</parameter>
<parameter>
<parameterName value="@exception" />
<dbType value="String" />
<size value="2000" />
<layout type="log4net.Layout.ExceptionLayout" />
</parameter>
</appender>
<root>
<level value="Error"/>
<appender-ref ref="filelogAppender"/>
</root>
<root>
<level value="Info"/>
<appender-ref ref="dbLogAppender"/>
</root>
</log4net>
我们看到的问题是，对于一个应用程序，我们看到了数据库中的条目，但对于另一个应用程序，我们看不到.
The issue we are seeing is that for one application we see entries in the DB, but for the other we do not.
Revision 是我们在两个应用程序的 Application_Start() 中设置的 GlobalContext 属性.两种配置之间的唯一区别是我们对 Application 使用了不同的硬编码值.
Revision is GlobalContext property we set in Application_Start() in both applications. And the only difference between the two configurations is that we have a different hardcoded value for Application.
我们可以有两个这样的根记录器吗?这可能是我们在一个应用程序中看到的问题的根源吗?
Can we have two root loggers like this? Could this be the source of our issue that we are seeing in one application?
推荐答案
您应该能够分别设置每个 appender 的 threshold 属性并将它们包含在同一个根中.
You should be able to set the threshold property of each appender separately and include them in the same root.
<appender name="filelogAppender" type="log4net.Appender.RollingFileAppender">
<threshold value="Error" />
</appender>
<appender name="dblogAppender" type="log4net.Appender.AdoNetAppender">
<threshold value="Info" />
</appender>
<root>
<appender-ref ref="filelogAppender" />
<appender-ref ref="dblogAppender" />
</root>
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