NLog rotate and cleanup logfiles

Question

Within my company we\'re working with NLog. We\'re experiencing issues with large amount of log files. What we want to do is archive files by day and keep a maximum of an x

Answer 1

NLog 4.5 (and newer) improves the support for dynamic fileName-Layout and archive-logic.

You can do this:

    <target name="file" xsi:type="File"
        fileName="${basedir}/logs/Log.${level}.${shortdate}.txt"
        archiveAboveSize="5242880"
        maxArchiveFiles="3" />

NLog 4.7 also introduces the setting maxArchiveDays for the FileTarget.

See also https://github.com/NLog/NLog/wiki/File-target#archive-old-log-files

Answer 2

It looks like the problem is the shortdate in your filename definition. See my answer at this question: Delete log files after x days

You have to define the filename without the date part

fileName="${basedir}/logs/Log.info.txt