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On a recent DNN/2sxc installation, the DNN index functions fail with a GeneralException: "The given key was not present in the dictionary."

The stack error is:

Message:Search: Error while indexing module 458 on tab 50, portal 1

StackTrace:

at

ToSic.SexyContent.Environment.Dnn7.DnnBusinessController.GetModifiedSearchDocuments(ModuleInfo moduleInfo, DateTime beginDate) in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\2sxc Dnn\Environment\Dnn7\DnnBusinessController.cs:line 89 at DotNetNuke.Services.Search.ModuleIndexer.IndexSearchDocuments(Int32 portalId, ScheduleHistoryItem schedule, DateTime startDateLocal, Action`1 indexer)

InnerMessage:The given key was not present in the dictionary.

InnerStackTrace:

at System.ThrowHelper.ThrowKeyNotFoundException() at System.Collections.Generic.Dictionary'2.get_Item(TKey key) at ToSic.SexyContent.ContentGroup.get_Template() in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\ToSic.Sxc\SexyContent\ContentGroup.cs:line 70 at ToSic.SexyContent.ContentBlocks.ModuleContentBlock..ctor(IInstanceInfo instanceInfo, Log parentLog, ITenant tenant, IEnumerable`1 overrideParams) in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\ToSic.Sxc\SexyContent\ContentBlocks\ModuleContentBlock.cs:line 82 at ToSic.SexyContent.Environment.Dnn7.Search.SearchController.GetModifiedSearchDocuments(IInstanceInfo instance, DateTime beginDate) in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\2sxc Dnn\Search\SearchController.cs:line 55 at ToSic.SexyContent.Environment.Dnn7.DnnBusinessController.GetModifiedSearchDocuments(ModuleInfo moduleInfo, DateTime beginDate) in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\2sxc Dnn\Environment\Dnn7\DnnBusinessController.cs:line 85 Source:ToSic.Sxc.Dnn

Recycling the application pool revives the application but the problem will occur again and again.

I found these solutions:

Delete the DNN index files and reindex    
Remove and give back rights to the application pool to the index files    
Convert the site in English then set it back in French

but nothing works. The problem only occurs with 2sxc modules (basic contents) and not with other modules (HTML for exemple).

Any idea to solve that?

Environment: DNN 9.1.1 2SXC 9.23

Frédéric Laurent
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  • I often get a similar error when swapping between application pools on my development machine - Is this happening in production or without swapping between app pools? – Andrew Birks May 03 '18 at 10:46
  • In production and I'm not swapping the app pool. I only have one site with only one app pool. – Frédéric Laurent May 08 '18 at 18:55

3 Answers3

2

Just fyi: this really seems to be an issue - we're working on it, check out I'm guessing this is related to https://github.com/2sic/2sxc/issues/1564 and https://github.com/2sic/2sxc/issues/1561

Note that this is fixed in 9.31, and we'll release 9.32 with some more fixes.

iJungleBoy
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  • I've had these issues 3x today whilst working on a local site soon to be pushed to production. I've just installed v09.31.00-pre1 as this is the latest at time of writing. I'll report back here if I encounter the errors again. Thanks – Andrew Birks May 22 '18 at 13:29
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The good news is that I don't have the problem anymore... The bad news is that I don't know why...

As a really bas scientist, I did several actions at the same time and one of them (or in conjonction) solved the problem. What I did :

  • upgrade to 2sxc version 9.30
  • set the recycling time of the application pool to 10080 minutes (7 days)
  • unchecked both static and dynamic cache in IIS
  • installed the Windows Server updates (and rebooted the server)

Also, I'm connecting to the server using RDP. When I start my connection, I now uncheck the use of the local printers, the clipboard, and the local drives (in fact, I don't bind any local resources to the distant server). I realized that there were errors because the driver of my local printer was not installed on the remote server. Not sure it has to do with it but as I don't need these bindings anymore, I deactivated them.

Next step is to try to set back the cache and set a shorter time for recycling the application pool.

If I find something, I'll update this post.

Frédéric Laurent
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I imagine this has to do with the reference to a path that does not exist on the server. We have been experiencing this every night after our nightly backup runs. Cycling the AppPool brings it back (as you have indicated), but we plan to upgrade to 9.30 (which was just released today - https://github.com/2sic/2sxc/releases). May the 4th be with you!

By the way, we noticed 9.23 was marked as a "Pre-Release", so this may have not been so smart to use this version? :)

David Poindexter
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