KB4521599 - FIX: Non-yielding scheduler condition occurs if large number of row-column values are processed in row groups in SQL Server 2016 or 2017

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


In Microsoft SQL Server 2016 or 2017, you may encounter a "Non-yielding Scheduler" condition if a large number of row-column valuesare processed in row groups. The threshold was decreased to yieldthe processor.


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


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


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