FIX: Slow to access "Explorer" or "System Administration" on MDM home page

Symptoms

Assume that you use Microsoft SQL Server 2012 or SQL Server 2014 Master Data Services (MDS). When you try to access the Explorer or the System Administration functional area on the Master Data Manager (MDM) home page, the website responds slowly, and the CPU usage becomes high.

Cause

When you try to access the Explorer or the System Administration functional area, a call of a security evaluation stored procedure is done. The query optimizer selects a suboptimal plan and uses a nested loop instead of a hash match.

Resolution

The issue was first fixed in the following cumulative update of SQL Server.

Cumulative Update 3 for SQL Server 2012 SP2

Cumulative Update 4 for SQL Server 2014

Cumulative Update 12 for SQL Server 2012 SP1

About 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.
Properties

Article ID: 2982544 - Last Review: 17 Nov 2014 - Revision: 1

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