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https://issues.apache.org/jira/browse/LOG4NET-635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ralph Goers updated LOG4NET-635:
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LOG4NET is now dormant.
> RollingFileAppender overwrite existing log file when system date update
> ------------------------------------------------------------------------
>
> Key: LOG4NET-635
> URL: https://issues.apache.org/jira/browse/LOG4NET-635
> Project: Log4net
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 2.0.8
> Environment: Windows 7/10
> Windows application using log4net
> Reporter: Peter Xiao
> Priority: Major
>
> When system date change, log4net will create new log file base on rolling
> style.
> But is new date's log file already exists, the content inside the log file
> will be overwritten when system date updated to the specific date.
>
> For example:
> Current date is 2019-08-09, log file LoadABC2019-08-09.log was generated.
> LoadABC2019-08-10.log already exists and there is content inside.
> Once system date update to 2019-08-10, LoadABC2019-08-10.log is overwritten
> by log4net rather than append. (Application keep running during the system
> date updating)
>
> This behaviors will cause log lost issue.
>
> Below is the Appender config :
> <appender name="LoadADV" type="log4net.Appender.RollingFileAppender">
> <param name= "File" value= "log\LoadABC"/>
> <param name= "AppendToFile" value= "true"/>
> <param name= "MaxSizeRollBackups" value= "30"/>
> <param name= "StaticLogFileName" value= "false"/>
> <param name= "DatePattern" value= "yyyy-MM-dd".log""/>
> <param name= "RollingStyle" value= "Date"/>
> <layout type="log4net.Layout.PatternLayout">
> <conversionPattern value="%date\{HH:mm:ss.fff} [%t] \{%-5level} [%logger] -
> %message%newline"/>
> </layout>
> </appender>
>
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