FIX: Data processing is much slower in SSAS 2016 SP2 and 2017 than in SSAS 2016 SP1

Applies to: SQL Server 2016 Service Pack 2SQL Server 2016 DeveloperSQL Server 2016 Enterprise

Symptoms


Assume that you use Microsoft SQL Server 2016 or 2017 Analysis Services (SSAS). After you upgrade to SSAS 2016 Service Pack 2 (SP2) or later version, you may notice that data processing takes much longer time when compared with processing the same data with SSAS 2016 Service Pack 1 (SP1).

Status


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

Resolution


Cumulative Update Information:

This issue is fixed in the following cumulative updates for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:

On-Demand Hotfix Information:

This issue is fixed in the following on-demand hotfix for SQL Server:


References


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