Recycling the Application Pool creates 401 errors

Question

I am using the Rewrite Module on IIS 7.

When I restart the Application Pool I get a Authentication Required window that doesn't except any credentials that it is given and when you click cancel it goes to a 401 unauthorized page.

The rewrite rule sends the request to an ashx page in a virtual directory (_assets).

How can I resolve this strange behavior?

Anonymous is turned on and it works fine.

The following is the rewrite rule we are using:

<rewrite>
    <rules>
        <rule name="Loader" patternSyntax="ECMAScript" stopProcessing="true">
            <match url="^[a-z0-9\-\/]*$" negate="false" />
  <action type="Rewrite" url="/_assets/includes/load.ashx?q={UrlEncode:{REQUEST_URI}}" appendQueryString="false" />
        </rule>
    </rules>
</rewrite>

I can get past the weird login by going to /.reset. This causes a 500 error and then the site is available again.

Note: Our application pools restart nightly.

possibly related: http://stackoverflow.com/a/7786839/85371 and especially the linked [article by Phil Haack](http://haacked.com/archive/2011/10/16/the-dangers-of-implementing-recurring-background-tasks-in-asp-net.aspx) which points at [HostingEnvironment.RegisterObject](http://msdn.microsoft.com/en-us/library/system.web.hosting.hostingenvironment.registerobject.aspx) — sehe, Apr 06 '13 at 09:31

score 1 · Answer 1 · answered Apr 11 '13 at 16:46

1

I found a forum post that outlines a problem pretty similar to yours (it also outlines how they managed to fix it). Hopefully it helps you sort out the issue!

answered Apr 11 '13 at 16:46

Tim

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1

+1 Thanks for your input. This only fixes a symptom not the disease. Our Application Pools restart nightly regardless of the amount of memory used. – iambriansreed Apr 11 '13 at 18:20
Did you see the part about the "Shutdown time limit"? – Tim Apr 11 '13 at 18:42
Ok, great. Where can I change that value? the web.config? – iambriansreed Apr 11 '13 at 19:02
I got to it via the **Advanced Settings** in IIS Manager – Tim Apr 11 '13 at 19:28
I got to _that_ by clicking on **Application Pools** in IIS Manager then right-clicking on the one I wanted. It shows up in the **Process Model** section – Tim Apr 11 '13 at 19:31

Recycling the Application Pool creates 401 errors

1 Answers1