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LDAP Administration Guide
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9.1. Berkeley DB Backends

9.1.1. Overview

The bdb backend to slapd(8) is the recommended primary backend for a normal slapd database. It uses the Oracle Berkeley DB (BDB) package to store data. It makes extensive use of indexing and caching (see the Tuning section) to speed data access.

hdb is a variant of the bdb backend that uses a hierarchical database layout which supports subtree renames. It is otherwise identical to the bdb behavior, and all the same configuration options apply.

Note: An hdb database needs a large idlcachesize for good search performance, typically three times the cachesize (entry cache size) or larger.

9.1.2. back-bdb/back-hdb Configuration


9.1.3. Further Information


LDAP Administration Guide
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  Published under the terms of the OpenLDAP Public License Design by Interspire