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James Serra's Blog

James is currently a Senior Business Intelligence Architect/Developer and has over 20 years of IT experience. James started his career as a software developer, then became a DBA 12 years ago, and for the last five years he has been working extensively with Business Intelligence using the SQL Server BI stack (SSAS, SSRS, and SSIS). James has been at times a permanent employee, consultant, contractor, and owner of his own business. All these experiences along with continuous learning has helped James to develop many successful data warehouse and BI projects. James has earned the MCITP Business Developer 2008, MCITP Database Administrator 2008, and MCITP Database Developer 2008, and has a Bachelor of Science degree in Computer Engineering. His blog is at .

Being careful in SSAS to not make a cube/dimension unprocessed

A big headache in SSAS, especially when dealing with a large cube, is making a change that when deployed, causes a cube to become unprocessed, forcing you to do a full process so the cube is usable.  Nothing is worse than making a change without realizing it will cause the need for a full process on all the partitions of a cube that will take many hours.

For example, a process full on a dimension will cause cube/measures group/related partitions to become unavailable/unprocessed.  Here are other actions that will make your cube unprocessed:

  • New measure group
  • New measure
  • Edit measure aggregation method
  • Edit dimension usage

Here are other actions that will make your dimension unprocessed (and therefore all cubes connected to the dimension become unprocessed):

  • Add an attribute to a dimension
  • Change the order by property of an attribute
  • Edit the attribute relationship
  • Add or delete dimension translation

So, make sure you understand which changes will cause an unprocessed state which makes the cube unusable so you can do it off-hours so you don’t end up getting angry phone calls that the cube is not working!

More info:

SSAS: Which change makes the cube/dimension unprocessed?

Processing Analysis Services Objects

Cube “Process State” changing to UnProcessed

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