Missing asset randomly taking down our sites

[hcoverlambda]

Three times in the past month (Twice in the past 5 days) we've run into an issue where a production site (It's happened separately on two sites) will randomly be taken down, YSOD and all, with this error showing up in the logs:

Verify the existence of assets specified in *.asset.config or *.script.config files
Unable to locate asset named jquery-ui-1.8.21.custom.min.js
Asset logs:
    D:\Websites\services.reachmail.net\wwwroot\fubu-content\FubuMVC.JQueryUI\WebContent\jqueryui.asset.config
        Added alias jqueryui

Unable to locate asset named jquery-ui-1.8.21.custom.min.js
Asset logs:
    D:\Websites\services.reachmail.net\wwwroot\fubu-content\FubuMVC.JQueryUI\WebContent\jqueryui.asset.config
        Added alias jqueryui

Nothing ASP.NET is available. The only way it could be fixed was by waxing the fubu-content folder. I don't think it's fubu per se, I actually think its either DFS or our backup software mucking with files which then affects fubu. BUT it concerns me that a missing js file could bring down our entire site. Especially when we don't even use that bottle, I think it's in there because of diagnostics. Is there a way to configure it so that if an asset is missing it doesn't kill the entire site, maybe just log a warning instead? I got a lot of heat over this so I'm hoping to find an answer that makes management feel confident that our sites will not randomly go down again. :/

TIA,

m

BTW, here are the fubu versions we were on at the time of the error, we have since update to the latest nugets:

Bottles                                           1.0.0.443       file:///D:/Websites/services.reachmail.net/wwwroot/bin/Bottles.DLL                                                                                              
FubuCore                                          1.0.0.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuCore.DLL                                                                                              
FubuLocalization                                  0.9.5.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuLocalization.DLL                                                                                      
FubuMVC.Core.Assets                               0.9.9.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.Core.Assets.DLL                                                                                   
FubuMVC.Core                                      1.0.1.1410      file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.Core.DLL                                                                                          
FubuMVC.Core.UI                                   1.0.1.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.Core.UI.DLL                                                                                       
FubuMVC.Core.View                                 1.0.0.383       file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.Core.View.DLL                                                                                     
FubuMVC.Diagnostics                               0.9.6.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.Diagnostics.DLL                                                                                   
FubuMVC.JQueryUI                                  0.5.0.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.JQueryUI.DLL                                                                                      
FubuMVC.Media                                     1.0.0.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.Media.DLL                                                                                         
FubuMVC.Navigation                                0.9.0.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.Navigation.DLL                                                                                    
FubuMVC.SlickGrid                                 0.0.0.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.SlickGrid.DLL                                                                                     
FubuMVC.Spark                                     1.0.0.383       file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.Spark.DLL                                                                                         
FubuMVC.StructureMap                              1.0.1.1410      file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.StructureMap.DLL    
FubuMVC.TwitterBootstrap                          0.0.0.0         file:///D:/Websites/services.reachmail.net/wwwroot/bin/FubuMVC.TwitterBootstrap.DLL                                                                              




[Jeremy D. Miller]

This happens when the web app is restarting, or at runtime?

- Jeremy

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[Ryan Rauh]

> Is there a way to configure it so that if an asset is missing it doesn't kill the entire site, maybe just log a warning instead?

https://github.com/DarthFubuMVC/FubuMVC.Core.Assets/blob/master/src/FubuMVC.Core.Assets/Tags/IMissingAssetHandler.cs

Override this interface???

[Mike O'Brien]

From the logs it looks like the app is starting. Here is the full log, sorry: https://gist.github.com/mikeobrien/5600bb985bd3e417c266

[Mike O'Brien]

Interesting, I'll check it out, thx!

[hcoverlambda]

Just got back to looking into this again and ran across this setting:

AssetsExpression.YSOD_on_missing_assets(bool applyPolicy)

https://github.com/DarthFubuMVC/FubuMVC.Core.Assets/blob/ad34fb6fbf1dd7cea207150fd15955362a779f38/src/FubuMVC.Core.Assets/AssetsExpression.cs#L72

It looks like this will do it AFAICT, is that correct? Also where are assets configured now-a-days? I tried using Assets().* in my FubuRegistry ctor but it's no longer there, thought it was before but maybe that changed.

TIA,

m

- Jeremy

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[hcoverlambda]

BTW, it appears that DFS was indeed the culprit. Excluded fubu-content from DFS and the problem has not come up since.

[Ryan Rauh]

>  I tried using Assets().*

It's got moved to an Extension method try, `this.Assets()`

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[Mike O'Brien]

Aha, thanks Ryan!