Report not hitting pre seed cahe created using iBot by Admin

Hi,
We created an iBot to pre seed the cache using Administrator and it is creating the cache but when normal user run this particular report for the 1st time it's not hitting the cache(created using iBot). all the subsequest users request hitting the cache created by normal user. I still dont understand why it is not hitting the cache.
Did anyone comeacross this issue before?
what are the reasons not hitting cache with above scenario??
does cache created by administrator using ibot work for other users? we actually running whole query with no filters on it using admin and normal users run the same report with some filters on it. as per oracle cache strategy it should work but it's not.
any help appreciated.
Thanks
Jay.
Edited by: Jay on May 16, 2012 7:23 PM
Edited by: Jay on May 17, 2012 5:42 AM

Hi Jay,
I have given some inputs.
The way the OBIEE server creates the SQL (both logical and physical) for a request can be a bit funky sometimes, the cache seeding only really works in fairly simple cases. Does your request have a pivot table in it by any chance? These are notorious for not caching properly, if you look at the log for the request you can see why as the server adds this strange "aggregate by" to the request (why this can't be done at the presentation level since the only change you are asling for is in the presentation of the content is beyond me). Those "aggregate by"s tend to stop a request being a cache hit unless it is identical to the one that seeded that cache, any change in parameters, columns etc (even if a logical subset) will not get a cache hit.
2. "Oracle BI Server Cache" Cache Seeding option present in Destination tab of Delivers -- Please check this option.
3. Caching is one of the many approaches to improve performance but it's not a magic solution. You need to understand that you can't cache everything. In particular you won't be able to cache reports that are driven by parameters and have facts that are too granular and exceed the number of rows each cache entry can have. If your fact is of a small size then you can get around the parameters issue by caching a report without any filters. The BI Server should able to derive subsequent queries as long as they meet the cache hit criteria. Have a look at the administration manual for all the rules a cache hit must meet.
Hope it helps.
Thanks,
Satya

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http://badalratra.wordpress.com/2014/03/13/error-the-content-type-texthtml/
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http://office.microsoft.com/en-in/excel-help/power-view-in-sharepoint-server-create-save-and-print-reports-HA102834736.aspx
http://office.microsoft.com/en-in/excel-help/create-a-connection-to-a-data-model-for-power-view-HA102835737.aspx
Regards,
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected] .
Rebecca Tu
TechNet Community Support

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