ESSBASE DBAG PDF
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Before setting to TRUE, try these alternatives: S1, S2, S3, S4 Anchoring dimension: Changes made to cache sizes take effect the next time you start the database.
EPM Information Development Team This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected essbaee intellectual property laws.
Use the recommended values in this section to estimate enough memory for optimal performance. Single Anchoring Dimension, Single Bitmap. A buffer in memory that holds compressed data files.
For Essbase to use multiple bitmaps for this database with one anchoring dimension, the calculator cache must bebytes. Multiple Anchoring Edsbase, Single Bitmap. See Managing Database Settings.
Database Administrator’s Guide
To determine the total index size, see Index Files. Sizing Dynamic Calculator Caches. The following topics provide information about essnase caches for performance.
To try and answer your question, though: By default, cache memory locking is turned off. If the exsbase cache size is too small for any of the above options, Essbase does not use a calculator cache. The sizes of the calculator, index, data file, and data caches usually have a greater effect on performance if the database calculation is based more on aggregations and less on formula calculations.
If you want to account for future growth of stored data, you can set the data file cache size larger than the current size of stored data.
In this case, they might be populating data in various cells by performing retrieves, sssbase, and other operations until they get the desired data on their spreadsheet, and where the data is being transmitted in real time from the Essbase server. Thank you jwj for help. Label Only members are not counted. B is the total number of logical blocks accessed in the largest query.
Changing the Dynamic Calculator Cache Size. To calculate the expanded block size, multiply the number of members including Dynamic Calc members and dynamic time series members in each dense dimension together for the number of cells in the block, and multiply the number of cells by the size of each member cell, 8 bytes.
In general, the larger these caches, the less swapping activity occurs; however, setting larger cache sizes does not always improve performance. Increase value if exsbase of these conditions exist: Thank you for replying.
Essbase can create a bitmap, whose size is controlled by the size of the calculator cache, to record and track data blocks during a calculation. In certain cases, you might need to increase the data cache when running concurrent calculations; for example, when concurrent calculations do not share any common blocks and the sparse member with the largest number of children has all its children blocks populated in the database.
Essbase uses the calculator cache bitmap if the database has at least two sparse dimensions and either of these conditions is also met:. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited.
(DBAG) Essbase Database Administrator’s Guide – Hyperion World
The first message describes the total time required for the retrieval. To determine the value of B, check the messages in the application log for the largest number of Dyn. Sizing the Calculator Cache. Cache size settings can significantly affect database and general server performance.