I have setup Integration services in one of my windows clustered environment. This was earlier hosting SSIS 2008 R2 and the development team did a recent migration of the databases to SQL 2012.
From our understand the packages were not upgraded and they are still of 2008 R2 Version. post migration there were few errors and we had to follow the below link to address the issue. The fix was to install SSIS 2012 and other client tools.
http://pietervanhove.azurewebsites.net/?p=461
Things were working fine and all of a sudden we notice a peculiar issue everyday after a specific package starts running. It goes
into a never ending state and other packages are also failing.
GAC_MSIL still has SQL 2008 R2 related ssis assemblies.
Noticed the below messages when i had enabled logging. Script invocation errors were seen.
does not exist in the namespace 'Microsoft.SqlServer.Dts.Tasks.ScriptTask' (are you missing an assembly reference?)
Cannot apply indexing with [] to an expression of type 'Microsoft.SqlServer.Dts.Runtime.Variables'
The referenced component 'Microsoft.SqlServer.ManagedDTS' could not be found.
Below link deals with a similar issue and the solution there did not help too.
https://caonnect.microsoft.com/SQLServer/feedback/details/744390/ssis-any-pre-2012-error-cannot-apply-indexing-with-to-an-expression-of-type-microsoft-sqlserver-dts-runtime-variables
I solve the problem moving the file "Microsoft.SQLServer.ManagedDTS.dll" located in the path:
"C:\Program Files (x86)\Microsoft SQL Server\110\SDK\Assemblies" to a backup folder, then the bids take the reference from the path C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.ManagedDTS\10.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.ManagedDTS.dll
What worked for me was a restart of the SQL instance. This again is not a permanent fix and i was wondering if anyone faced a similar issue.
Should the team upgrade all packages to 2012? Should only one version of SSIS be running in the server? Should i add SSIS 2012 DLL files in GAC?
Requesting your Inputs and ideas in case you had faced a similar issue in the past.
Balaji.G