KB4556244 - FIX: Credential update frequency option is added to mssql-conf option in SQL Server 2019 on Linux

Applies to: SQL Server 2019 on Linux


This fix adds new functionality in SQLPAL to allow long-running linked server queries with Active Directory (AD) connections. The mssql-conf option name is "network.kerberoscredupdatefrequency" and theaccepted parameters are any positive, non-zero number which represents thenumber of minutes between checks for credentials that need updating. Accordingly, you can use this mssql-conf option to modify the time interval between credential checks that need to be updated.


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


This issue is fixed in the following cumulative update for SQL Server:
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