Symptoms
Assume that you deploy a simple SQL Server Integration Service (SSIS) package into the SSIS Catalog (SSISDB). SSISDB needs to be run in parallel through various SQL jobs. You may notice that some SQL jobs fail due to blocking in SSISDB.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Resolution
This issue is fixed in the following cumulative updates for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Workaround
To work around the issue, you can manually modify the Stored Procedure [catalog].[set_execution_property_overrides] to set the transaction level to repeatable read instead of serializable as follows:
Replace:
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
With:
SET TRANSACTION ISOLATION LEVEL REPEATABLE READ
References
Learn about the terminology that Microsoft uses to describe software updates.
