Sql server Log4Net在错误后未登录数据库，无论其登录文件如何

我有一个奇怪的问题正在进入log4net。 我已经使用AdoDotNet appender启用了log4net。它通常可以正常工作并登录到数据库，但有时会突然停止工作而不登录到数据库。但是，当我们将级别信息从info更改为debug，再将debug更改为info时，它就会开始工作并登录到数据库中。 我做了进一步的研究，启用了log4net内部调试，并同时添加了RollingFileAppenderInForErrorLogger appender，以跟踪问题是来自AdoneAppender还是log4net general

因此，当log4net内部调试中出现此问题时，它会抛出下面的错误，并停止登录数据库，直到和除非我更改log4net配置中的某些内容，但它会继续登录到文件附录中
这个错误是传输错误，所以我的问题是，为什么log4net在出现异常后没有启动，但仍然登录到文件中？如何在发生此类异常后重新启动数据库日志记录

log4net:ERROR [AdoNetAppender] ErrorCode: GenericFailure. Failed in DoAppend
System.Data.SqlClient.SqlException (0x80131904): A transport-level error has occurred when sending the request to the server. (provider: Named Pipes Provider, error: 0 - The specified network name is no longer available.) ---> System.ComponentModel.Win32Exception (0x80004005): The specified network name is no longer available
   at System.Data.SqlClient.TdsParser.TdsExecuteRPC(_SqlRPC[] rpcArray, Int32 timeout, Boolean inSchema, SqlNotificationRequest notificationRequest, TdsParserStateObject stateObj, Boolean isCommandProc, Boolean sync, TaskCompletionSource`1 completion, Int32 startRpc, Int32 startParam)
   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
   at log4net.Appender.AdoNetAppender.SendBuffer(IDbTransaction dbTran, LoggingEvent[] events)
   at log4net.Appender.AdoNetAppender.SendBuffer(LoggingEvent[] events)
   at log4net.Appender.BufferingAppenderSkeleton.Append(LoggingEvent loggingEvent)
   at log4net.Appender.AppenderSkeleton.DoAppend(LoggingEvent loggingEvent)
ClientConnectionId:a1efe1ac-6986-4a15-a233-7dcfee4ef60e
Error Number:64,State:0,Class:20

下面是我的log4net配置文件

<?xml version="1.0"?>
<configuration>
    <log4net debug="true">
        <appender name="DebugAppender" type="log4net.Appender.DebugAppender">
            <layout type="log4net.Layout.PatternLayout">
                <conversionPattern value="%-4timestamp [%thread] %-5level %logger - %message%newline"/>
            </layout>
        </appender>
        <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
            <layout type="log4net.Layout.PatternLayout">
                <conversionPattern value="%-4timestamp [%thread] %-5level %logger - %message%newline"/>
            </layout>
        </appender>
<appender name="RollingFileAppenderInfoErrorLogger" type="log4net.Appender.RollingFileAppender">
     <file value="D:\Halo\Logs\LoaderService.log" />
    <appendToFile value="true" />
    <rollingStyle value="Size" />
    <maxSizeRollBackups value="10" />
    <maximumFileSize value="10240KB" />
    <staticLogFileName value="true" />
    <countDirection value="1"/>
    <threshold value="INFO"/>
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date %level %logger - %message%newline%newline" />
    </layout>
        <filter type="log4net.Filter.LevelRangeFilter">
      <param name="LevelMin" value="INFO"/>
      <param name="LevelMax" value="Error"/>
    </filter>
    </appender>
        <appender name="AdoNetAppender" type="log4net.Appender.AdoNetAppender">
            <bufferSize value="1"/>
            <usetransactions value="false"/>
            <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
            <connectionStringName value="HaloAutomationLog"/>
            <commandText value="INSERT INTO [HaloAMS].[Logging].[ApplicationLog] ([LogDate],[Thread],[LogLevel],[Logger],[LogMessage],[Exception]) VALUES (@log_date, @thread, @log_level, @logger, @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="@message"/>
                <dbType value="String"/>
                <size value="-1"/>
                <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="INFO" />      
            <appender-ref ref="RollingFileAppenderInfoErrorLogger" />   
        <appender-ref ref="AdoNetAppender"/>
        </root>
    </log4net>
</configuration>

您可以添加

<reconnectonerror value="True" />

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连接字符串在这种情况下是否有帮助？谢谢Peter。此ConnectRetryCount是否适用于sql server 2008？

ConnectRetryCount=X; //where x is the times you want to reconnection