Red Hat 8.1, Command Reference Manual

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Chapter 2. Core Server Configuration Reference
70
When more backends are replicated or when one backend is replicated to more than one consumer,
tune the
nsslapd-cachememsize
so that its value is 5000000 times the number of replication
agreements initiated from the server (
5000000 *
no_of_repl_agreements
).
The relationship between the values assigned to the
nsslapd-dbcachesize
and
nsslapd-
cachememsize
parameters should be the same as the relationship that is described in the database
tuning section.
The
cn=changelog5,cn=config
entry is an instance of the
extensibleObject
object class.
NOTE
Two different types of changelogs are maintained by Directory Server. The first type,
which is stored here and referred to as the
changelog
, is used by multi-master
replication; the second changelog, which is actually a plug-in and referred to as the
retro
changelog
, is for compatibility with some legacy applications. See
Section 3.1.29, “Retro
Changelog Plug-in”
for further information about the Retro Changelog Plug-in.
2.3.2.1. nsslapd-changelogdir
This required attribute specifies the name of the directory in which the changelog database is created.
Whenever a changelog configuration entry is created, it must contain a valid directory; otherwise,
the operation is rejected. The GUI proposes by default that this database be stored in
/var/lib/
dirsrv/slapd- instance_name /changelogdb
.
WARNING
If the
cn=changelog5
entry is removed, the directory specified in the
nsslapd-
changelogdir
parameter, including any subdirectories, are removed, with all of their
contents.
NOTE
For performance reasons, store this database on a different physical disk.
The server has to be restarted for changes to this attribute to go into effect.
Parameter Description
Entry DN cn=changelog5,cn=config
Valid Values Any valid path to the directory storing the
changelog
Default Value None
Syntax DirectoryString
Example nsslapd-changelogdir: /var/lib/dirsrv/
slapd-
instance_name
/changelogdb