Monday, February 13, 2012

Analysis Services Perfomance Issues (when open a cube definition)

Hi

we are dealing whit a perfomance issue in Analysis Server 2005 working with olap cubes. This cubes are part of a solution with a view (91 tables) and every time we try to access some meta data of the cube in the Visual Studio 2005 (i.e.: Calculations, KPIs, etc) it takes a lot of time to read the metadata of the cube. The cubes are not so big, but every time we try to get the cube metadata we have problems.In Example; it takes more than 3 minutes to get the structure of the cube in the browse section; but after this we can easily drop fields to the sections of the cube designer and watch the cube data and calculations.

We have the same problem in Excel 2007 when we try to connect to the Analysis Services database and read some information; when we get the definition of the cubes, then the data takes a normal time to be filled.

Does anybody has some ideas or suggestions ?

Regards

Bruno

Do you have any ROLAP dimensions or a lot of security roles?|||

Hi Jeffrey

no, we currently have 1 one that call an advanced function and uses a .Net Assembly in order to check the security for some objects. I don't know if this may affect the "browser" perfomance.

Regards

Bruno

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Do you have dimensions with ragged hierarchies? Are you on SQL Server 2005 RTM, SP1 or SP2?

You can attach the Profiler to the AS Server to identify which queries and/or commands take a long time to complete.

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