FIX: SHARING VIOLATION error 6518 occurs on CLR assembly microsoft.sqlserver.types.dll in SQL Server 2012 or SQL Server 2014

Applies to: SQL Server 2012 DeveloperSQL Server 2012 EnterpriseSQL Server 2012 Standard More

Symptoms


When you run queries in Microsoft SQL Server 2012 or SQL Server 2014, the queries may intermittently fail with a SHARING VIOLATION error on the CLR assembly Microsoft.SqlServer.Types.dll. Additionally, the following error message is logged in SQL Server Error log:
Error 6518, Severity 16, State 2
Could not open system assembly ''C:\Windows\assembly\GAC_MSIL\microsoft.sqlserver.types\11.0.0.0__89845dcd8080cc91\microsoft.sqlserver.types.dll'': 32(The process cannot access the file because it is being used by another process.).

Resolution


The issue was first fixed in the following cumulative update of SQL Server:

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.