FIX: Unnecessary failover when you use AlwaysOn Availability Group in SQL Server 2017 on Linux

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

Symptoms


Assume that you use an AlwaysOn Availability Group in an instance of SQL Server 2017 on Linux. Although you configure the failure condition level to Failover or restart on critical server errors, a server restart or failover might be triggered even when the "query_processing error" is returned. 

Resolution


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

       Cumulative Update 3 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.