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https://issues.apache.org/jira/browse/LOG4NET-178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14566349#comment-14566349
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Brian Baker commented on LOG4NET-178:
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In our case we deduced that this was a result of "overlapped recycling" as
described in the TechNet article [How Worker Process Recycling Works (IIS
6.0)|http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/24e3c22e-79a9-4f07-a407-dbd0e7f35432.mspx?mfr=true]
(note that although the article is for IIS 6, the same principle applies to
later versions). By setting
[DisallowOverlappingRotation|https://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/ec26f50e-dcc9-4439-acc1-d7d8cff8e0ee.mspx?mfr=true]
to *true* for our application pool we resolved the issue. There are some
downsides to disabling overlapped recycling, so be sure you understand the
ramifications before using this workaround.
> Log4Net stops logging after appdomain recycle of ASP.NET2.0 application
> -----------------------------------------------------------------------
>
> Key: LOG4NET-178
> URL: https://issues.apache.org/jira/browse/LOG4NET-178
> Project: Log4net
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 1.2.10
> Environment: Windows server 2003
> Reporter: Richard Nijkamp
> Assignee: Dominik Psenner
> Fix For: 1.2.12
>
>
> Dear sir/madam,
> We are using Log4Net 1.2.10. We encounter the problem that Log4net doesn't
> continue logging after an event that triggers an appdomain recycle/restart.
> In the global.asax we start the logging with:
> private static readonly ILog log =
> LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
> Logging works flawless when the application is started for the first time.
> After sometime it might occur that the appdomain gets recycled due to
> inactivity of the web application. We use the following code in
> Application_end():
> log.Info("*** Application end ***");
> log4net.LogManager.Shutdown();
> After this function the application gets restarted and the
> Application_start() method executes and writes new lines to the log. The
> problem is that the log4net doesn't write the new lines after the restart.
> Could you explain why log4net might stop working after an appdomain restart
> of an asp.net2.0 web application? If I want log4net to work properly again I
> need to restart IIS manually.
> Looking forward to your reply.
> Best regards,
> Richard Nijkamp
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