October 2012
Intermediate to advanced
316 pages
8h 47m
English
book
IBM Cognos Dynamic Cubes
by Dmitriy Beryoza, Shilpa Bhimavarapu, Alan Blake, David Cushing, Vlaunir Da Silva, Mario Daigle, Avery Hagleitner, Ian Henderson, Beth Jubera, Skyla Loomis, Chris McPherson, Steven Rogers, Carlos Ruiz, Christopher Yao
Content preview from IBM Cognos Dynamic Cubes
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Chapter 8. Optimization and performance tuning 241
heap size and cache size considerations, see Understanding Hardware Requirements for
Cognos Dynamic Cubes at the business analytics proven practices website:
https://www.ibm.com/developerworks/analytics/practices.html
To use the aggregate cache, run the Aggregate Advisor to get and save recommendations for
in-memory aggregates, and enable the aggregate cache by specifying enough memory for
the corresponding cube setting, as described in 8.4.2, “Loading in-memory aggregates into
the aggregate cache” on page 221. At the core of the Aggregate Advisor logic is a
model-based evaluation that uses heuristics to analyze potential slices of the cube to
recommend aggregates that balances coverage with ...
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