Not sure if it can be reproduced. We had a page with double quotes in the Meta Description we had to fix. Fix was applied on second computer connected to same database. First computer did not display the page correctly (bad cache) and exception was thrown after attempt to edit the page on first computer was made. Resetting the web server seem to resolve it but definitely a concern for production use.

Server Error in '/' Application.

---

Row not found: GenericOID@f2d2130a PageData content_id=afc15147-5e13-424d-b2ec-03372a583b03
UPDATE [sf_page_data] SET [locked_by]=?, [last_modified]=?, [voa_version]=? WHERE [content_id] = ? AND [voa_version]=?
(set event logging to all to see parameter values)

[OptimisticVerificationException: Row not found: GenericOID@f2d2130a PageData content_id=afc15147-5e13-424d-b2ec-03372a583b03
UPDATE [sf_page_data] SET [locked_by]=?, [last_modified]=?, [voa_version]=? WHERE [content_id] = ? AND [voa_version]=?
(set event logging to all to see parameter values)]
   DynamicModule.ns.Wrapped_OpenAccessPageProvider_fc8361ef58e34df286e72b01ee4554d4.CommitTransaction() +140
   Telerik.Sitefinity.Data.ManagerBase`1.SaveChanges() +51
   Telerik.Sitefinity.Modules.Pages.PageManager.SaveChanges() +12
   Telerik.Sitefinity.Web.PageEditorRouteHandler.GetPageData(SiteMapNode node) +1195
   Telerik.Sitefinity.Web.RouteHandler.GetHttpHandler(RequestContext requestContext) +120
   Telerik.Sitefinity.Web.PageEditorRouteHandler.GetHttpHandler(RequestContext requestContext) +39
   System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context) +8912168
   System.Web.Routing.UrlRoutingModule.OnApplicationPostResolveRequestCache(Object sender, EventArgs e) +86
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

It is very serious issue in SF 4.1 that needs prompt attention. You can see in the attached image that the issue popped up on a 'locked' page - message box appeared when 'unlock' button was clicked. Nothing helped, to get it unlocked on second computer (page showed as published on one compuer, locked on second).

Please note: Resetting IIS again restored consistent state.

It would appear to me that there is inconsistency between IIS and database states.

Hi Pavel,

I am having hard time to replicate this issue. I see what the problem could be but we will need to investigate this further. It looks like the object gets locked. I logged a task with reference to the thread, so our QAs will make some tests.

Can you provide some more details about the environment you use. Is it NLB or just you make a request from another machine?

All the best,
Ivan Dimitrov
the Telerik team

Hi,

I want to report that this same thing happened to me just now, on Sitefinity 4.2.1650. Our environment is set up on 4 servers. I believe that the error occurred when I unlocked a page locked by a person on a different server. At first I could edit the page in Sitefinity and access it on the live site, whereas the other person got an error when trying access it on the live site
Suddenly I got an OptimisticVerificationException when trying to edit the page too, and the error looked pretty much like Pavel's. When trying to delete the page, I got the same error. It turned out that the servers were out of sync and one of them displayed the error on this particular page. None of the other pages were affected.
I logged onto one of the servers what didn't display the error and deleted the page. After that, the page was deleted on two of the servers, and on the other two, the page were still there. A mystery, I'd say...

Anyway, I will try to reset the IIS and I really hope that fixes the problem. I just wanted to let you know that Pavel isn't the only one this has happened to.

Cheers,
Carina Olsson

Hi,

I wanted to post an update about the problems I was experiencing yesterday. It seems that the error had something to do with the cache. When I opened Sitefinity today, the page was deleted from all servers, but still visible on the Pages section of backend Sitefinity when using Chrome (the same browser I used yesterday), but I couldn't access it (404 error). In other browsers/on other computers it was gone, although when entering the Template section, I could see that one of the templates was still used by the deleted page.

I created a brand new page, no one edited it but me, and suddenly the new page showed a Row-not-found-error on the same server that displayed the error yesterday. Upon recycling of the App pool, this error was resolved and the page from yesterday was also deleted, for real this time.

Regards,
Carina

Hello Carina,

We're working on a solution for this problem. Still we have problems reproducing it on our testing environments.

Regards,
Pavel Iliev
the Telerik team

any resolution to this?  we have been dealing with issues like this for several weeks now. Either on pageData or pageTemplate.

We were able to get the error by having a dev workstation edit a page locally and a designer working from a staging server trying access the page gets the error. 

Any update to this? We are Sitefijnity 5.x and are getting multiple row not found errors.

When clicking on pages the page architecture fails to load and we get a row not found .pagedraft

And while updating a page recently locked by someone we got a row not found genericOID on a template.

We have 3 load balanced servers.