X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2Fman%2Fman5%2Fslapd.backends.5;h=95a727ff362200aff310ceb177aab74f109e8bab;hb=9b21d585dcee5a09465ab029d5d8321a8da343f0;hp=887c499c144ec7adc7e1dd5481a58c47e9e3fc14;hpb=0f2628574d259db9520fd65c19165c12b33204b6;p=openldap diff --git a/doc/man/man5/slapd.backends.5 b/doc/man/man5/slapd.backends.5 index 887c499c14..95a727ff36 100644 --- a/doc/man/man5/slapd.backends.5 +++ b/doc/man/man5/slapd.backends.5 @@ -1,5 +1,5 @@ .TH SLAPD.BACKENDS 5 "RELEASEDATE" "OpenLDAP LDVERSION" -.\" Copyright 2006-2007 The OpenLDAP Foundation All Rights Reserved. +.\" Copyright 2006-2012 The OpenLDAP Foundation All Rights Reserved. .\" Copying restrictions apply. See COPYRIGHT/LICENSE. .\" $OpenLDAP$ .SH NAME @@ -16,12 +16,14 @@ slapd server. Configuration options for each backend are documented separately in the corresponding -.BR slapd- (5) +.BR slapd\- (5) manual pages. .TP .B bdb -This is the recommended primary backend for a normal slapd database. -It takes care to configure it properly. +This was the recommended primary backend through OpenLDAP 2.3, but it has +since been superseded by the +.BR hdb +backend. It takes care to configure it properly. It uses the transactional database interface of the Oracle Berkeley DB (BDB) package to store data. .TP @@ -40,14 +42,18 @@ It serves up referrals based upon SRV resource records held in the Domain Name System. .TP .B hdb -This is a variant of the +This is the recommended primary backend for a normal slapd database. +.B hdb +is a variant of the .B bdb backend that uses a hierarchical database -layout. This layout stores entry DNs more efficiently than the +layout. +This layout stores entry DNs more efficiently than the .B bdb backend, using less space and requiring less work to create, delete, and rename entries. It is also one of the few backends to support subtree renames. +.BR .TP .B ldap This backend acts as a proxy to forward incoming requests to another @@ -71,6 +77,11 @@ daemon. Only a single instance of the .B monitor backend may be defined. .TP +.B ndb +This backend is experimental. +It uses the transactional database interface of the MySQL Cluster Engine +(NDB) to store data. +.TP .B null Operations in this backend succeed but do nothing. .TP @@ -93,7 +104,7 @@ in the same server, based on the naming context of the request. Its use requires the .B rwm overlay (see -.BR slapo-rwm (5) +.BR slapo\-rwm (5) for details) to rewrite the naming context of the request. It is primarily intended to implement virtual views on databases that actually store data.