Symptoms

Assume that you use Always On availability groups (AG) in Microsoft SQL Server 2017. When you remove an availability group listener or you change the port number of an availability group listener that was created by using Failover Cluster Manager, SQL Server may fall into a non-yielding scheduler scenario and stop responding.

Resolution

This fix is included in Cumulative Update 5 for SQL Server 2017.

About SQL Server 2017 builds

Each new build for SQL Server 2017 contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build 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 Microsoft uses to describe software updates.

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