Tuesday, March 20, 2012

An unexpected error occurred file 'mddiscretizer.cpp'

Hey guys,

I'm not sure if this one should be addresses to the data mining team or the analysis services team, but I first encountered this error while attempting to process a Naive Bayes mining model that has a column with only a couple of distinct values in it. I set the discretization method for the column to clusters and then tried to process the model. The processing completed with failures and complained that the column had too few distinct values to apply the selected discretization.

I have now also noticed that when I attempt to process an OLAP cube that has the same column as a measure group in it the cube processing fails with the following error:

[Analysis Services Execute DDL Task] Error: Internal error: An unexpected error occurred (file 'mddiscretizer.cpp', line 1532, function 'MDDiscretizer::GetBucketForValue').

Any thoughts on this one?
I have found a workaround for this issue:

http://zen-turkey.com/blog/default.aspx?id=32&t=An-unexpected-error-occurred-file-mddis

This seemed to resolve the issue for me, but I am not sure if this would be considered a bug or not? For me the work-around resolves the issue and I consider it closed... but it might bear further investigation...

Cheers :-)
|||This is still a bug that we will investigate and fix in a future release. Thanks for reporting it.

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