Clay Lenhart's Blog » cube processing http://clay.lenharts.net/blog A blog on .Net and SQL Server Tue, 31 Oct 2017 10:34:08 +0000 en-US hourly 1 http://wordpress.org/?v=4.2.2 How SSAS Cube Processing Affects Running Queries http://clay.lenharts.net/blog/2009/05/29/how-ssas-cube-processing-affects-running-queries/ http://clay.lenharts.net/blog/2009/05/29/how-ssas-cube-processing-affects-running-queries/#comments Fri, 29 May 2009 19:26:55 +0000 http://clay.lenharts.net/blog/?p=119 Continue reading →]]> SSAS cube processing can kill running queries. That’s right, it may kill queries in order to commit changes to the cube.

Here is what happens during SSAS cube processing.

  1. The cube finishes calculating the next version of the cube
  2. Before the data can be made available, SSAS prevents new queries from running
  3. Any currently running queries are allowed to finished normally for 30 seconds
  4. After 30 seconds, SSAS kills any running queries
  5. SSAS commits the new version and allows new queries to hit the updated data

The 30 second time out is a configuration setting that you can read about here.

So, that’s right, SSAS may kill long running queries.

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