KB4013111 - FIX: DMV sys.dm_hadr_availability_group_states displays "NOT_HEALTHY" in synchronization_health_desc column on secondary replicas in SQL Server

Applies To
SQL Server 2012 Enterprise SQL Server 2012 Developer SQL Server 2012 Enterprise Core SQL Server 2012 Standard SQL Server 2014 Developer - duplicate (do not use) SQL Server 2014 Enterprise - duplicate (do not use) SQL Server 2014 Enterprise Core - duplicate (do not use) SQL Server 2014 Standard - duplicate (do not use) SQL Server 2014 Service Pack 2 - duplicate (do not use) SQL Server 2016 Developer - duplicate (do not use) SQL Server 2016 Enterprise - duplicate (do not use) SQL Server 2016 Enterprise Core - duplicate (do not use) SQL Server 2016 Standard - duplicate (do not use) SQL Server 2016 Service Pack 1

Symptoms

You run the sys.dm_hadr_availability_group_states dynamic management view (DMV) against a secondary replica of a Microsoft SQL Server Always On availability group. In this scenario, the DMV always displays "NOT_HEALTHY" in the synchronization_health_desc column even when the replica is healthy.

Resolution

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

Cumulative Update 6 for SQL Server 2016 RTM

Cumulative Update 3 for SQL Server 2016 SP1

Cumulative Update 5 for SQL Server 2014 SP2

Cumulative Update 12 for SQL Server 2014 SP1

Cumulative Update 8 for SQL Server 2012 Service Pack 3

Recommendation: Install the latest cumulative update for SQL Server

Each new cumulative update for SQL Server contains all the hotfixes and security fixes that were included in the previous cumulative update. Check out the latest cumulative updates for SQL Server:

Latest cumulative update for SQL Server 2016

Latest cumulative update for SQL Server 2014

Latest cumulative update for SQL Server 2012 SP3

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.