Symptoms
Consider the following scenario:
-
You use SQL Server Integration Services (SSIS) with SQL Server 2014 or 2016.
-
You create two SSIS packages that both run the same child package.
-
The child package contains a connection string that is specified by an expression.
-
You execute those two parent packages in parallel.
In this scenario, a race condition that causes an access violation may occur.
Resolution
This problem was fixed in the following cumulative updates for SQL Server:
Cumulative Update 8 for SQL Server 2014 Service Pack 1 Cumulative update 2 for SQL Server 2014 SP2 Cumulative Update 2 for SQL Server 2016
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:
Latest cumulative update for SQL Server 2014 Latest cumulative update for SQL Server 2016
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology Microsoft uses to describe software updates.
