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 2. IBM Cognos Dynamic Cubes architecture 25
The data caches of the different instances of a cube are not synchronized, so if a user
executes a query on one machine and another, query response can fluctuate.
The underlying database might encounter additional load because each instance of a
cube is required to load data independently of the other node.
The dispatcher is not knowledgeable of dynamic cubes, therefore it does not account for
whether a cube is available under a particular dispatcher when dispatching a request for
execution. Consequently, extra steps are required to ensure cubes are taken on and off
line on individual dispatchers to ensure users do not encounter error messages to the
effect that a cube is unavailable. ...
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