KB3170015 - DMV sys.dm_os_memory_nodes returns a non-zero value for the pages_kb value for the DAC node in SQL Server 2014

Symptoms

In Dynamic Management View (DMV), sys.dm_os_memory_nodes returns a non-zero value for the pages_kb value for the DAC node in SQL Server 2014 or 2016.

Resolution

This issue is fixed in the following service pack for SQL Server:

SQL Server 2014 Service Pack 2 

SQL Server 2016 Service Pack 1

After you install this update, the DMV sys.dm_os_memory_nodes returns 0 for the pages_kb value for the DAC node.

Service packs are cumulative. Each new service pack contains all the fixes that are in previous service packs, together with any new fixes. Our recommendation is to apply the latest service pack and the latest cumulative update for that service pack. You do not have to install a previous service pack before you install the latest service pack. Use Table 1 in the following article for finding more information about the latest service pack and latest cumulative update.

How to determine the version, edition and update level of SQL Server and its components

Status

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

More Information

Nodes are created to correspond with the physical NUMA memory nodes. These might differ from the CPU nodes in sys.dm_os_nodes.

The DAC node is reserved for the Dedicated Administrative Connection.

The Pages_kb value specifies how much committed memory in kilobytes (KB) is allocated from this NUMA node by the Memory Manager Page Allocator. This value cannot be null.

References

Learn about the terminology that Microsoft uses to describe software updates.

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