Sitecore Log4net RollingFileAppender not working

Question

I've trying to implement RollingAppender for general log files in sitecore 8.1 update 2 solutions.

The moment I change below

<appender name="LogFileAppender" type="log4net.Appender.SitecoreLogFileAppender, Sitecore.Logging">
  <file value="$(dataFolder)/logs/log.{date}.txt" />
  <appendToFile value="true" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%4t %d{ABSOLUTE} %-5p %m%n" />
  </layout>
  <encoding value="utf-8" />
</appender>

to

<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender, Sitecore.Logging">
  <file value="$(dataFolder)/logs/log.{date}.txt" />
  <appendToFile value="true" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%4t %d{ABSOLUTE} %-5p %m%n" />
  </layout>
  <encoding value="utf-8" />
</appender>

the log files are not creating.

Exact config I am using in solution is:

 <appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender, Sitecore.Logging">
    <file value="$(dataFolder)/logs/log" />
    <appendToFile value="true" />
    <datePattern value="yyyyMMdd&quot;.txt&quot;" />
    <rollingStyle value="Composite" />
    <maxSizeRollBackups value="-1" />
    <maximumFileSize value="50KB" />
    <preserveLogFileNameExtension value="true" />
    <staticLogFileName value="false" />
    <immediateFlush value="true"/>
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%4t %d{ABSOLUTE} %-5p %m%n" />
    </layout>
    <encoding value="utf-8" />
  </appender>

What am I missing here?

Answer 1

As you would like to use Composite style, you are missing couple of configuration entries in your config.

You need to change your config like this (change values according to your needs):

<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender, Sitecore.Logging">
  <file value="$(dataFolder)/logs/log.txt" />
  <appendToFile value="true" />
  <rollingStyle value="Composite" />
  <datePattern value="yyyyMMdd" />
  <maxSizeRollBackups value="10" />
  <maximumFileSize value="1MB" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%4t %d{ABSOLUTE} %-5p %m%n" />
  </layout>
  <encoding value="utf-8" />
</appender>

Take a look in more examples here: https://logging.apache.org/log4net/release/config-examples.html (Search for "RollingFileAppender")