dbTalk Databases Forums  

DSN Requested/DSN Used

microsoft.public.sqlserver.olap microsoft.public.sqlserver.olap


Discuss DSN Requested/DSN Used in the microsoft.public.sqlserver.olap forum.



Reply
 
Thread Tools Display Modes
  #1  
Old   
Milind
 
Posts: n/a

Default DSN Requested/DSN Used - 06-09-2006 , 05:56 AM






Hi All,

I was trying to optimize a mdx query through the Performance monitor
DSN Requested and DSN Used counters. Now, if I dont have any
aggregations built in the cube, I get
DSN requested = 31312e+17
DSN used = 32322e+17

If I build the exact aggregations 313121111...., through partition
manager manually, reaggregate, restart analysis services and then run
the mdx query again, I still get
DSN requested = 31312e+17
DSN Used = 32322e+17.

Why doesn't it use the new aggregation. Any help would be appreciated.

Thanks

Milind


Reply With Quote
  #2  
Old   
Chris Webb
 
Posts: n/a

Default RE: DSN Requested/DSN Used - 06-12-2006 , 04:02 AM






The DSN Requested/DSN Used counters got much less useful when they started
getting displayed in scientific form - I can only assume that either the
query you're running doesn't actually hit the aggregation you've built, or
there's some functionality in there governing when aggregations are used
which no-one knows about. Without being able to see the value of DSN
Requested it's almost impossible to work out the exact aggregation you need
to build.

Chris

--
I blog about Microsoft BI here:
http://spaces.msn.com/cwebbbi/
Do you need help with Analysis Services or MDX? I'm available for hire:
http://www.crossjoin.co.uk/


"Milind" wrote:

Quote:
Hi All,

I was trying to optimize a mdx query through the Performance monitor
DSN Requested and DSN Used counters. Now, if I dont have any
aggregations built in the cube, I get
DSN requested = 31312e+17
DSN used = 32322e+17

If I build the exact aggregations 313121111...., through partition
manager manually, reaggregate, restart analysis services and then run
the mdx query again, I still get
DSN requested = 31312e+17
DSN Used = 32322e+17.

Why doesn't it use the new aggregation. Any help would be appreciated.

Thanks

Milind



Reply With Quote
Reply




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.