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SLAPD-LDBM(5)
NAME
  slapd-ldbm - LDBM backend to slapd

SYNOPSIS
  /usr/internet/openldap/etc/slapd.conf

DESCRIPTION
  The LDBM backend to slapd(8) is an easy-to-configure but obsolete database
  backend.  It does not offer the data durability features of the BDB and HDB
  backends and hence is considered deprecated in favor of these robust
  backends.  LDBM uses lightweight non-transactional data interfaces, such as
  those provided by GDBM or Berkeley DB, to store data.	 It makes extensive
  use of indexing and caching to speed data access.

CONFIGURATION
  These slapd.conf options apply to the LDBM backend database.	That is, they
  must follow a "database ldbm" line and come before any subsequent "backend"
  or "database" lines.	Other database options are described in the
  slapd.conf(5) manual page.

  cachesize <integer>
       Specify the size in entries of the in-memory cache maintained by the
       LDBM backend database instance.	The default is 1000 entries.

  dbcachesize <integer>
       Specify the size in bytes of the in-memory cache associated with each
       open index file.	 If not supported by the underlying database method,
       this option is ignored without comment.	The default is 100000 bytes.

  dbnolocking
       Specify that no database locking should be performed. Enabling this
       option may improve performance at the expense of data security.	Do
       NOT run any slap tools while slapd is running.

  dbnosync
       Specify that on-disk database contents should not be immediately
       synchronized with in memory changes.  Enabling this option may improve
       performance at the expense of data security.

  dbsync <frequency> <maxdelays> <delayinterval>
       Flush dirty database buffers to disk every <seconds> seconds.  Implies
       dbnosync (ie. individual updates are no longer written to disk).	 It
       attempts to avoid syncs during periods of peak activity by waiting
       <delayinterval> seconds if the server is busy, repeating this delay up
       to <maxdelays> times before proceeding. It is an attempt to provide
       higher write performance with some amount of data security.  Note that
       it may still be possible to get an inconsistent database if the
       underlying engine fills its cache and writes out individual pages and
       slapd crashes or is killed before the next sync.	 <maxdelays> and
       <delayinterval> are optional and default to 12 and 5 respectively,
       giving a total elapsed delay of 60 seconds before a sync will occur.
       <maxdelays> may be zero, and <delayinterval> must be 1 or greater.

  directory <directory>
       Specify the directory where the LDBM files containing this database
       and associated indexes live.  A separate directory must be specified
       for each database.  The default is
       /usr/internet/openldap/var/openldap-data.

  index {<attrlist>|default} [pres,eq,approx,sub,<special>]
       Specify the indexes to maintain for the given attribute (or list of
       attributes).  Some attributes only support a subset of indexes.	If
       only an <attr> is given, the indices specified for default are
       maintained.  Note that setting a default does not imply that all
       attributes will be indexed. Also, for best performance, an eq index
       should always be configured for the objectClass attribute.

       A number of special index parameters may be specified.  The index type
       sub can be decomposed into subinitial, subany, and subfinal indices.
       The special type notags (or nolang) may be specified to disallow use
       of this index by subtypes with tagging options (such as language
       options).  The special type nosubtypes may be specified to disallow
       use of this index by named subtypes.  Note: changing index settings
       requires rebuilding indices, see slapindex(8).

  mode <integer>
       Specify the file protection mode that newly created database index
       files should have.  The default is 0600.

ACCESS CONTROL
  The ldbm backend honors access control semantics as indicated in
  slapd.access(5).

FILES
  /usr/internet/openldap/etc/slapd.conf
       default slapd configuration file

SEE ALSO
  slapd.conf(5), slapd(8), slapadd(8), slapcat(8), slapindex(8).

Index for Section 5

Alphabetical listing for S

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