Symptoms
Consider the following scenario:
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You use SQL Server 2016 Master Data Services (MDS).
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You have an MDS database that contains lots of members—for example, more than 50 million.
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You perform one of the following actions:
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Open the home page of the MDS website
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Calculate member security
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Working with REST APIs
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In this scenario, you may experience slow performance when you work with the MDS database, as in the following cases:
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When you open the home page of the MDS website, it might take more than 10 seconds to load the page. After you install this update, it might take less than 1 second.
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A large-membership security calculation operation takes a very long time to complete, and it consumes all the available memory and a large amount of storage space. After you install this update, the calculation operation is completed much faster, and it consumes much less memory and storage space.
Resolution
The fix for this issue is included in the following cumulative update 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:
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.
