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Knowledge hiding is sometimes used to deliberately give some DSAs no knowledge of other DSAs. A DSA cannot route a query to a DSA that it has no knowledge of.
The disadvantage of knowledge hiding is seen during failover: router DSAs need to know all DSAs that serve each namespace partition.
Knowledge hiding is not required if you use DXmanager, as is explained in the following table:
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Reason to Use Knowledge Hiding |
Description |
New Method using DXmanager |
|---|---|---|
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Reduce the number of edits to configuration files |
Knowledge hiding reduced the amount of knowledge information stored in configuration files, which meant that after a configuration change, fewer files had to be edited. |
Knowledge files are not used—You now use DXmanager to manage the whole directory backbone. |
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Prevent long searches from delaying other queries |
Knowledge hiding permitted the use of reporting applications that send long search queries. |
Use role-based limits. |
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