Red Hat DIRECTORY SERVER 8.0 Command Reference Manual page 132

Chapter 3. Plug-in Implemented Server Functionality Reference
3.4.1.14. nsslapd-db-logfile-size
This attribute specifies the maximum size of a single file in the log in bytes. By default, or if the value is
set to 0, a maximum size of 10 megabytes is used. The maximum size is an unsigned 4-byte value.
Parameter
Entry DN
Valid Range
Default Value
Syntax
Example
3.4.1.15. nsslapd-db-page-size
This attribute specifies the size of the pages used to hold items in the database in bytes. The minimum
size is 512 bytes, and the maximum size is 64 kilobytes. If the page size is not explicitly set, Directory
Server defaults to a page size of 8 kilobytes. Changing this default value can have a significant
performance impact. If the page size is too small, it results in extensive page splitting and copying,
whereas if the page size is too large it can waste disk space.
Before modifying the value of this attribute, export all databases using the db2ldif script. Once the
modification has been made, reload the databases using the ldif2db script.
Parameter
Entry DN
Valid Range
Default Value
Syntax
Example
3.4.1.16. nsslapd-db-spin-count
This attribute specifies the number of times that test-and-set mutexes should spin without blocking.
CAUTION
Never touch this value unless you are very familiar with the inner workings of Berkeley DB
or are specifically told to do so by Red Hat support.
Parameter
Entry DN
Valid Range
Default Value
Syntax
122
Description
cn=config, cn=ldbm database, cn=plugins,
cn=config
0 to unsigned 4-byte integer
10MB
Integer
nsslapd-db-logfile-size: 10 MB
Description
cn=config, cn=ldbm database, cn=plugins,
cn=config
512 bytes to 64 kilobytes
8KB
Integer
nsslapd-db-page-size: 8KB
Description
cn=config, cn=ldbm database, cn=plugins,
cn=config
0 to 2^31-1
0
Integer