Red Hat DIRECTORY SERVER 8.0 Command Reference Manual page 125

3.4.1. Database Attributes under cn=config, cn=ldbm database,
cn=plugins, cn=config
This section covers global configuration attributes common to all instances are stored in the
cn=config, cn=ldbm database, cn=plugins, cn=config tree node.
3.4.1.1. nsLookthroughLimit
This performance-related attribute specifies the maximum number of entries that the Directory Server
will check when examining candidate entries in response to a search request. The Directory Manager
DN, however, is, by default, unlimited and overrides any other settings specified here. It is worth noting
that binder-based resource limits work for this limit, which means that if a value for the operational
attribute nsLookThroughlimit is present in the entry as which a user binds, the default limit
will be overridden. Attempting to set a value that is not a number or is too big for a 32-bit signed
integer returns an LDAP_UNWILLING_TO_PERFORM error message with additional error information
explaining the problem.
Parameter
Entry DN
Valid Range
Default Value
Syntax
Example
3.4.1.2. nsslapd-idlistscanlimit
This performance-related attribute, present by default, specifies the number of entry IDs that are
searched during a search operation. Attempting to set a value that is not a number or is too big for a
32-bit signed integer returns an LDAP_UNWILLING_TO_PERFORM error message, with additional error
information explaining the problem.
It is advisable to keep the default value to improve search performance. For a more detailed
explanation of the effect of ID lists on search performance, refer to the "Managing Indexes" chapter in
the Directory Server Administrator's Guide.
The server has to be restarted for changes to this attribute to go into effect.
Parameter
Entry DN
Valid Range
Default Value
Syntax
Example
Database Attributes under cn=config, cn=ldbm database, cn=plugins, cn=config
Description
cn=config, cn=ldbm database, cn=plugins,
cn=config
-1 to maximum 32-bit integer in entries (where -1
is unlimited)
5000
Integer
nsLookthroughLimit: 5000
Description
cn=config, cn=ldbm database, cn=plugins,
cn=config
100 to the maximum 32-bit integer value
(2147483647) entry IDs
4000
Integer
nsslapd-idlistscanlimit: 4000
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