FIX: Pacemaker demotes existing primary replica of an AlwaysOn AG in SQL Server 2017 on Linux and never promotes a new one

Applies to: SQL Server 2017 Developer LinuxSQL Server 2017 Enterprise on LinuxSQL Server 2017 Enterprise Core on Linux


Assume that you use an AlwaysOn availability group (AG) in SQL Server 2017 on a Linux Pacemaker cluster. When you create the Pacemaker resource for the AG, Pacemaker demotes the current primary replica and does not promote any secondary replica to the primary. However, this issue happens only on some configurations of Pacemaker. 


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

       Cumulative update 4 for SQL Server 2017


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


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