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HomeHomeUsing DNN Platf...Using DNN Platf...Performance and...Performance and...HTTP Error Code 404 Page Not FoundHTTP Error Code 404 Page Not Found
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11/4/2015 7:31 PM
 

Hi,

My site returns 404 error, but all pages are existing. I've just recycle my application pool and the site is back. I've checked event log but the I can't get more information my site cause to return 404 issues.

 
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11/5/2015 3:14 PM
 
it Looks like the error was returned because the application was not (yet) available.

Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
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11/5/2015 5:42 PM
 

But other subsites using the same application doesn't have encounter the 404 at the same time.

 
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11/5/2015 6:12 PM
 
strange - I have no explanation.

Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
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3/22/2018 12:39 AM
 
Hi,

I believe that this is due to the code that fetches the tab dictionary not being thread safe. When multiple requests are made to a site it's possible that an empty tab dictionary becomes cached and therefore all requests return a 404 response until the application pool is recycled.

Further details and a code fix can be found at: https://dnntracker.atlassian.net/brow....

Hope this helps others.
 
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