Symptoms
When you create a Power BI report that executes a Data Analysis Expressions (DAX) query against Microsoft SQL Server 2014, 2016 and 2017 Analysis Services in Multidimensional mode (SSAS MD), you may notice that SSAS memory usage surpasses the configured HardMemoryLimit, and finally exhausts all the memory available.
The DAX query cannot be canceled, even at early stages.
Resolution
This issue is fixed in the following cumulative updates for SQL Server:
Cumulative Update 13 for SQL Server 2017
Cumulative Update 5 for SQL Server 2016 Service Pack 2
Cumulative Update 13 for SQL Server 2016 Service Pack 1
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:
Latest cumulative update for SQL Server 2017
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 terminologythat Microsoft uses to describe software updates.