I am running Visual Studio 2010, and attempting to update my Entity Framework project using the Update Wizard. When I attempt to add a single table from the MySql database, the add tab will show the table that I am attempting to add, however when I click finish, I get the following error message.
Unable to generate the model because of the following exception: 'An error occurred while executing the command definition. See the inner exception for details.
Fatal error encountered during command execution.
Fatal error encountered attempting to read the resultset.
Reading from the stream has failed.
Attempted to read past the end of the stream.
I get the same error message if attempt to create the Entity Framework from scratch. In addition, Server Explorer shows that the connection is successful when I test it.
I have also contacted Host Gator who is hosting the database and they where not able to see any issues on their side.
The problem ended up being that our shared server, was not able to handle the Update Request from the Entity Connector Framework and was timing out. Once we moved our database over to a different server we no longer had an issue.
Related
We have a package that will be triggered through MVC application by invoking store procedure which creates a execution request for the Package. MVC app is hosted on different server and DB is on different server. This error started occurring after 3 months of Windows Server 2019 migration.
Package executes successfully most of the time, but fails once or twice per day with the following errors. After re-executing the package immediately it succeeds. Error occurs in the below order.
Illegal operation attempted on a registry key that has been marked for deletion
Failed to acquire connection. Connection may not be configured correctly or you may not have the right permissions on this connection.
Upon capturing the "ISServexec.exe" process dump and analyzed through DebugDiag, we came to know the below details.
System.Runtime.InteropServices.COMException: Retrieving the COM class factory for component with CLSID {2206CDB2-19C1-11D1-89E0-00C04FD7A829} failed due to the following error: 800703fa Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA).
System.InvalidOperationException: The .Net Framework Data Providers require Microsoft Data Access Components(MDAC). Please install Microsoft Data Access Components(MDAC) version 2.6 or later.
System.Runtime.InteropServices.COMException: Illegal operation attempted on a registry key that has been marked for deletion.
Microsoft.SqlServer.Dts.Runtime.DtsGenericException: Illegal operation attempted on a registry key that has been marked for deletion.
Note:
Package doesn't have any excel reading operations. Just source table to target table load (both same database).
We have validated the MDAC version in the DB server as 6.3.
App Server: Windows 2019 with .Net framework 4.8 installed.
DB Server: Windows 2019, SQL Server 2019, SSIS v15, .Net framework 4.8.
Package executed using domain service account.
We have triggered the Package through SQL job and Package did not fail at all. Almost 200 executions tested. This failure is random and only fails when store procedure invoked through MVC application.
We have used ProcMon to collect the "ISServexec.exe" logs and only thing we noticed is hive unloaded and no errors.
SQL Profiler didnt even capture the error.
Package is not failing at the same step when this error occurs.
Package logging is configured to write errors in event log, but in event log only "package is failed" information is captured.
Package configured to use Oledb connection type. SQL Native client and MSOLEDB providers are used and error occurs in both the providers.
Package has been upgraded to SQL 2019. Hence we created a new Package in Visual Studio 2019 from scratch and this also fails with same error.
No errors captured in SQL Server extended events.
My Questions:
What are possible ways to validate the service account holds necessary permissions when the above error happens. Is this required ?
Is there any tools that I can use to debug and find the cause of the error or additional information ?
Is this oledb driver issue ?
How to capture any logs at windows server level when package execution happens.
Sorry for the detailed explanation. Any suggestions would be greatly appreciated.
I installed MySQL server and I also test this server by creating user data base userlist table and also check that it is working fine on command line as I previously done. But This time getting error when try to create a user.
I already used this but actauly I format my system and creating connection again. But this time getting error.
I am trying to generate my ADO.NET entity model from my MySQL database using the official Connector/Net 6.4.3 ADO.NET drivers from MySQL. However, after I type in my DB-info, and click next (Test Connection reports successful connection), I get the following error message from Visual Studio:
An error occurred while connecting to the database. The database might be unavailable. An exception of type 'System.Data.ProviderIncompatibleException' occurred. The error message is: 'The provider did not return a ProviderManifestToken string'.
The inner exception caught was of type 'System.FormatException', with this error message: 'Input string was not in a correct format.'.
Anyone know how to fix this?
I figured it out. There is a bug with the ADO.NET connector that makes localized Windows versions report that error message. The way to fix it is to change region settings (in windows control panel) to US and English (United States). I could then update model from database without errors.
[Participant Table [1994]] Error: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "I:\My Documents\Flamm Consulting\Migrations.accdb" failed with error code 0xC0209303. There may be error messages posted before this with more information on why the AcquireConnection method call failed.
Frankly, I'm confused about how SSIS should connect to Access 2007 - the UI just isn't very friendly - there's no file browser, for example. I'm wondering if there's something wrong with my install - missing drivers, etc.
Two guesses - first, you're attempting to run this package on a 64-bit server, which isn't going to work without a tweak. Second, you don't have the drivers installed.
For info on the first, try here: SSIS in 32- and 64-bits.
For info on the second, try here: Interacting with Office in SSIS.
SET RUN 64 to False from the project properties.
Having some SSIS permissions issue.
I am calling the SSIS package in my .net console application with:
Package pkg = app.LoadFromSqlServer(packagePath, serverName, serverUsername, serverPassword, dtsEvents);
It is working when manually running it using the windows accout, but fails with the above call in my console application.
Shouldn't it work with the sql server sa account?
There are plenty of reasons for it to fail when run under different account, to avoid trying to fix it blindly, you should get the error information. It looks like you are supplying dtsEvent parameter - so your app should get the error message. Another way to get it to examine package.Error collection after execution, or enable SSIS logging and check the error log.
Once you have the error message, update the post :)
There is also a KB article dedicated to troubleshooting such errors:
http://support.microsoft.com/kb/918760/.
But it just lists lots of possible error causes - to find out your issue, you need to get the error message first.
This generally happens when you have sql queries that use linked server to access a database on a different server.