Could not find prepared statement with handle n

Hi - Our live site (so yes - this is urgent!!) running Sitefinity build 1098 is intermittently getting this error when multiple users are editing pages simultaneously:

Telerik.OpenAccess.RT.sql.SQLException: Could not find prepared statement with handle n

We are making extensive use of the Sitefinity API for site customizations.  I have read 3 interesting posts related to this error:

1. there is a problem with the SQL Server driver (www.telerik.com/.../prepared-statement-not-getting-created.aspx)
2. the max connections setting in SQL Server must be increased (www.sqlservercentral.com/.../Topic468215-145-1.aspx
3. MS patch:  support.microsoft.com/.../913765

Exception:

[SQLException: Could not find prepared statement with handle 27.]
   Telerik.OpenAccess.RT.Adonet2Generic.Impl.PreparedStatementImp.executeQuery() +573
   OpenAccessRuntime.Relational.conn.PooledPreparedStatement.executeQuery() +85
   OpenAccessRuntime.Relational.fetch.FetchResultImp.execute() +86

[DataStoreException: Error executing query: Telerik.OpenAccess.RT.sql.SQLException: Could not find prepared statement with handle 27.
   at Telerik.OpenAccess.RT.Adonet2Generic.Impl.PreparedStatementImp.executeQuery()
   at OpenAccessRuntime.Relational.conn.PooledPreparedStatement.executeQuery()
   at OpenAccessRuntime.Relational.fetch.FetchResultImp.execute()
SQL:
SELECT a.[id] AS COL1, a.[approval_workflow_state_] AS COL2, a.[description_] AS COL3, a.[title_] AS COL4, a.[url_name_] AS COL5, a.[app_name] AS COL6, a.[id2] AS COL7, a.[can_inherit_permissions] AS COL8, a.[date_created] AS COL9, a.[inherits_permissions] AS COL10, a.[last_modified] AS COL11, a.[nme] AS COL12, a.[ordinal] AS COL13, a.[ownr] AS COL14, a.[content_id] AS COL15, a.[parent_id] AS COL16, a.[render_as_link] AS COL17, a.[root_id] AS COL18, a.[show_in_navigation] AS COL19, a.[voa_version] AS COL20 FROM [sf_page_node] a JOIN [sf_page_node] AS b ON (a.[root_id] = b.[id]) WHERE a.[app_name] = ?               AND a.[root_id] IS NOT NULL AND b.[id] = ?                Telerik.OpenAccess.RT.sql.SQLException: Could not find prepared statement with handle 27.
   at Telerik.OpenAccess.RT.Adonet2Generic.Impl.PreparedStatementImp.executeQuery()
   at OpenAccessRuntime.Relational.conn.PooledPreparedStatement.executeQuery()
   at OpenAccessRuntime.Relational.fetch.FetchResultImp.execute()]
   Telerik.OpenAccess.RT.ExceptionWrapper.Throw() +13
   OpenAccessRuntime.storagemanager.logging.LoggingStorageManager.fetchNextQueryResult(ApplicationContext context, RunningQuery runningQuery, Int32 skipAmount) +546
   OpenAccessRuntime.DataObjects.ForwardQueryResult.get_Item(Int32 indexParam) +364
   Telerik.OpenAccess.RT.ListEnumerator.setCurrent(Int32 _pos) +58
   Telerik.OpenAccess.RT.ListEnumerator.Move(Int32 relative) +107
   System.Linq.WhereEnumerableIterator`1.MoveNext() +196
   System.Linq.Buffer`1..ctor(IEnumerable`1 source) +488
   System.Linq.<GetEnumerator>d__0.MoveNext() +146
   System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +299
   System.Linq.Queryable.SingleOrDefault(IQueryable`1 source) +383

My live Sitefinity 4.0 site is essentially down because of this problem. 

Any ideas?  Shall I send source code / config files?  Shall I instead open a support ticket?

Hi Valerie,

Can you give us more information about the issue - when did it started appearing? Do you know of any server restrictions which may not allow multiple user editing pages in the backend ? Have you considered upgrading to SP1 ? Any additional information about your current website would be appreciated in order to solve the problem faster.

Greetings,
Victor Velev
the Telerik team

We're also seeing this error intermittently using Sitefinity 4.0. Was there ever a resolution to this issue?

FYI: We have not upgraded since because of compatibility concerns. If we can resolve this without upgrading that would be ideal. 

Hi Ben and Valerie,

What version of SQL Server are you using? This isn't a common problem with Sitefinity but more likely a SQL Server issue. As you correctly pointed out there is a KB article from Microsoft:

http://support.microsoft.com/kb/913765 

Have you try that?

Thanks for the response Lubomir. We are probably going to try the MS patch you mentioned but we haven't scheduled the patch yet. We're using SQL Server 2008 R2. 

After attempting to apply the patch I realized the MS patch and thread are for the .Net 2.0 framework. Our Sitefinity 4.0 installation is on the .Net 4.0 framework and the patch does not apply and will not install on the machine. 

Hello,

We haven't see this issue and it would be better if you upgrade to the latest release Sitefinity 4.4 and see if the problem is going to disappear. If not, we will need a sample project and steps to replicate this issue locally and try to figure out what the problem is.

Regards,
Ivan Dimitrov
the Telerik team

Thanks Ivan. We'll see if we can upgrade. 

I am hitting the same problem.  I am running an instance of Sitefinity 3.7 (4.0 Framework) with the Mallsoft Ecommerce plug-in.  It is the Mallsoft piece that is causing the error.  Upgrading is not an option at this time.  Any options?

** duplicate post **