FileTarget ignores OpenFileCacheSize property, process Handles count increases #5951
Description
NLog version: 6.0.2 (also 6.0.0, 6.0.1)
Platform: .NET8, Console App, Release build
Current NLog config
<nlog>
<targets>
<target xsi:type="File" name="file0" fileName="${tempdir}/${date:format=yyyy-MM-dd}.log" layout="${date:format=HH\:mm\:ss},${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file1" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-1.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file2" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-2.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file3" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-3.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file4" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-4.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file5" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-5.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file6" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-6.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file7" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-7.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file8" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-8.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file9" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-9.log" layout="${message}" openFileCacheSize="1" />
<target xsi:type="File" name="file10" fileName="${tempdir}/${date:format=yyyy-MM-dd_HH-mm}-10.log" layout="${message}" openFileCacheSize="1" />
</targets>
<rules>
<logger name="*" minlevel="Info" writeTo="file0" />
<logger name="*" minlevel="Info" writeTo="file1" />
<logger name="*" minlevel="Info" writeTo="file2" />
<logger name="*" minlevel="Info" writeTo="file3" />
<logger name="*" minlevel="Info" writeTo="file4" />
<logger name="*" minlevel="Info" writeTo="file5" />
<logger name="*" minlevel="Info" writeTo="file6" />
<logger name="*" minlevel="Info" writeTo="file7" />
<logger name="*" minlevel="Info" writeTo="file8" />
<logger name="*" minlevel="Info" writeTo="file9" />
<logger name="*" minlevel="Info" writeTo="file10" />
</rules>
</nlog>
-
What is the current result?
Program creates 10 new log files every minute and process Handles count increases by 10 too. -
What is the expected result?
Program should keep opened no more than 1 file at the same time, so the Handles count must be nearly constant. -
Did you checked the Internal log?
Yes, a lot of 'Creating writer to file...' Debug messages -
Please post full exception details (message, stacktrace, inner exceptions)
No exceptions. -
Are there any workarounds? yes/no
Yes, downgrading to5.5.0version of NLog.
Trying also to setopenFileCacheTimeout="20", but Handles count increases even more fast.
Is there any breaking changes in FileTarget configuration? -
Is there a version in which it did work?
NLog version5.5.0works fine, process Handles count doesn't increase after creating new set of log files.