FIX: Pacemaker may kill the resource agent processes when operation times out in SQL Server 2017 AlwaysOn Availability Group

Applies to: SQL Server 2017 Developer on WindowsSQL Server 2017 Enterprise on WindowsSQL Server 2017 Enterprise Core on Windows

Symptoms


Consider the following scenario:

  • You use AlwaysOn Availability Groups (AG) in SQL Server 2017.

  • You have CLUSTER_TYPE = EXTERNAL AG or Failover Cluster Instances (FCI) cluster on Pacemaker.

  • The Pacemaker process operation times out.

In this scenario, the Pacemaker may kill the resource agent processes.

Note This issue happens mostly with AGs that contains large databases or many databases.

Resolution


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

       Cumulative Update 11 for SQL Server 2017

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 that Microsoft uses to describe software updates.