Rob - The Log4net documentation (excellent) has an example of how to do this.  
See http://logging.apache.org/log4net/release/config-examples.html and scroll 
down to the RollingFileAppender section.

Thanks, Mike

From: Rob Richardson [mailto:rob.richard...@rad-con.com]
Sent: Tuesday, May 24, 2011 9:38 AM
To: Log4NET User
Subject: RE: Too many log files

Thanks for your reply!  I quote a reply to that thread below:

I suspect the difficulties deleting files rolled only by date is that
the appender would need to take into account the DatePattern used when
locating files to be considered for deleting. Counted backups
(log.txt.1, log.txt.2, log.txt.3, etc.) are easier to deal with because
integer sequences are more well-known.

I'm not aware of any efforts to support rolling of files based on
RollingMode.Date.

I would be happy with counted backups, as mentioned in that reply.  How do I 
set my rolling file appender to do that?

Thanks again!

RobR

________________________________
From: Lansdaal, Michael T [mailto:michael.t.lansd...@boeing.com]
Sent: Tuesday, May 24, 2011 12:33 PM
To: Log4NET User
Subject: RE: Too many log files

This post 
(http://www.l4ndash.com/Log4NetMailArchive%2Ftabid%2F70%2Fforumid%2F1%2Fpostid%2F17575%2Fview%2Ftopic%2FDefault.aspx)
 says that maxSizeRollBackups does not work if you set RollingStyle to 
RollingMode.Date (and another post I saw says it as "rollingStyle of Date does 
not support maxSizeRollBackups).

I have implemented my own directory cleaning code in application to clean out 
log files older than a certain date.

Thanks, Mike

From: Rob Richardson [mailto:rob.richard...@rad-con.com]
Sent: Tuesday, May 24, 2011 8:37 AM
To: Log4NET User
Subject: Too many log files

Log4net is ignoring the maximum number of files for my rolling file appender:

  <appender name="RollingFile" type="log4net.Appender.RollingFileAppender">
    <file value="HeatingModelScheduler.log" />
    <appendToFile value="true" />
    <param name="MaxSizeRollBackups" value="5" />
    <param name="DatePattern" value=".yyyy-MM-dd.lo\g" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date - %message%newline" />
    </layout>
  </appender>

Why do I now have six old log files?

Thank you very much.

RobR

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