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HomeHomeUsing DNN Platf...Using DNN Platf...Upgrading DNN P...Upgrading DNN P...7.4 Upgrade Cache Issues7.4 Upgrade Cache Issues
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4/25/2015 9:27 AM
 
Sebastian Leupold


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Sebastian Leupold's Avatar

www.dnnwerk.de
Joined: 3/8/2004
Posts: 46212
Richard, a couple of changes have been made regarding PortalSettings being loaded - this could be the cause of this issue as well.
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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4/27/2015 10:46 AM
 
Jean-Sylvain Boige


Joined: 10/1/2014
Posts: 20

More details:

We tried to disable web farm synchronization and output caching, and started over with the 3 web servers serving correctly for about 2 hours before one of them started again serving empty pages.

 The portal has en-US and fr-FR locales installed with only the later enabled. Do you think it could be related?

Could the new Versioning features have an impact too? For instance, in TabVersionBuilder, l.311, if for some reason, cache corruption leads to versioning getting enabled, I see that an empty list of ModuleInfo objects could be returned.

Jesse - CTO Aricie
 
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4/27/2015 11:20 AM
 
Richard Howells


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www.dynamisys.co.uk
Joined: 3/26/2006
Posts: 2001
@Jesse - It sounds as if you have developer skills. Might it be feasible for you to isolate - ie take out of the web farm a misbehaving server?

If so you might consider using Visual Studio to connect to that isolated server and use remote debugging. Not a great experience on release code, but it could let you see where the code actually goes and that might lead you to why it's serving these empty pages.
Best wishes,
- Richard
Agile Development Consultant, Practitioner, and Trainer
www.dynamisys.co.uk
 
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4/27/2015 11:28 AM
 
Andrew Burton

Joined: 3/3/2004
Posts: 13
I don't think it's a web farm issue, as the issue persists on my dev box as well. It's a frustrating thing to isolate too since it takes 20 minutes to test each time :) If it's a portal settings issue, then why does the page load with the correct skin etc? The only thing missing are the modules added to the page.
 
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4/27/2015 11:34 AM
 
Richard Howells


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www.dynamisys.co.uk
Joined: 3/26/2006
Posts: 2001
@Andrew - are you a developer?

I didn't realize this can be reproduced on a dev box. It's open source. You could grab the source and see if you can spot where it takes a wrong turning and avoids rendering the modules.
Best wishes,
- Richard
Agile Development Consultant, Practitioner, and Trainer
www.dynamisys.co.uk
 
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