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https://issues.apache.org/jira/browse/LOG4NET-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15706531#comment-15706531
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Jay McCormick commented on LOG4NET-534:
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Another thing. I'm using IE11 and loading MyProgram.dll. Is there a way to
check file security permissions inherited from IE? I bet that's the problem.
> rollingfileappender: INTERNAL ERROR. Append is False but OutputFile already
> exists
> ----------------------------------------------------------------------------------
>
> Key: LOG4NET-534
> URL: https://issues.apache.org/jira/browse/LOG4NET-534
> Project: Log4net
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 1.2.15
> Environment: Windows 10
> Reporter: Jay McCormick
> Labels: newbie
>
> Have read about [LOG4NET-118] and [LOG4NET-485] but it looks like neither has
> a resolution. Existing log file is not being rolled, it is being overwritten
> instead.
> Same code and config running on Windows 7, produces the error message in the
> summary. Not sure if UAC is a cause. Log file is written into users
> %LOCALAPPDATA%\TEMP directory. I have read about some "internal" log4net
> logging, but do not know how to activate that.
> The config:
> <?xml version="1.0" encoding="utf-8" ?>
> <configuration>
> <!-- configSections MUST be first! -->
> <configSections>
> <section name="log4net"
> type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
> </configSections>
>
> <log4net>
> <appender name="MAINLogFile"
> type="log4net.Appender.RollingFileAppender">
> <file type="log4net.Util.PatternString"
> value="%property{LogFileName}"/>
> <appendToFile value="false"/>
> <maximumFileSize value="20MB"/>
> <maxSizeRollBackups value="3"/>
> <param name="Encoding" value="unicodeFFFE"/>
> <layout type="log4net.Layout.PatternLayout">
> <conversionPattern
> value="%date{ISO8601}	%property{messageId}	%-5level	%message%newline"/>
> </layout>
> <filter type="log4net.Filter.LevelRangeFilter">
> <param name="LevelMin" value="ALL"/>
> <param name="LevelMax" value="OFF"/>
> </filter>
> </appender>
> <appender name="AsyncBufferingAppender-HotSwap"
> type="AsyncForwardingAppenderHotSwap">
> <GrowType value="Grow"/>
> <GrowLimit value="3000000"/>
> <Fix value="4"/>
> <appender-ref ref="MAINLogFile"/>
> </appender>
> <logger name="MAIN">
> <level value="INFO"/>
> <appender-ref ref="AsyncBufferingAppender-HotSwap"/>
> </logger>
> </log4net>
> <startup>
> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.1"/>
> </startup>
> <system.windows.forms jitDebugging="true"/>
> <system.diagnostics>
> <trace useGlobalLock="false"/>
> </system.diagnostics>
> </configuration>
> The AsyncBufferingAppender-HotSwap is borrowed from here:
> * Copied from .NET low latency logging. Part 5 - Asynchronous log4net
> solutions
> *
> http://deep-depth.blogspot.com/2014/02/net-low-latency-logging-part-5.html
> (I also tried without the Asynchronous Appender as well)
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