Log4Net RollingFileAppender doesn't write long strings
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06-07-2021 - |
質問
I have the following Log4Net config:
<appender name="WSLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="${APPDATA}\xxxx"/>
<evaluator type="log4net.Core.LevelEvaluator,log4net">
<threshold value="WSLog" />
</evaluator>
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="WSLog" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<bufferSize value="1"/>
<appendToFile value="true"/>
<rollingStyle value="Size"/>
<datePattern value="yyyyMMdd"/>
<MaxSizeRollBackups value="7"/>
<StaticLogFileName value="true"/>
<lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
<maximumFileSize value="5MB"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern
value="%newline__________________________________________________________%newlineTime:%utcdate%newline%newline%message%newline"/>
</layout>
</appender>
This works just fine until I have a huge string that needs to be logged. For example, if the string is about 8000 chars, Log4Net simply avoids writing it. It doesn't even write it truncated. Is there a way to get large string logged (fully or even truncated)?
解決
Have you tried enabling log4net's internal debugging to see if log4net is throwing an error
I tried a test program and it has no problem logging something like
log.Debug("Begin".PadRight(16000, '*') + "End");
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