
Chapter 3. Plug-in Implemented Server Functionality Reference
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Parameter
Description
Entry DN
cn=config, cn=ldbm database, cn=plugins,
cn=config
Valid Range
0 to 30
Default Value
0 (or turned off)
Syntax
Integer
Example
nsslapd-db-transaction-batch-val: 5
3.4.1.18. nsslapd-db-trickle-percentage
This attribute sets that at least the specified percentage of pages in the shared-memory pool are clean
by writing dirty pages to their backing files. This is to ensure that a page is always available for reading
in new information without having to wait for a write.
Parameter
Description
Entry DN
cn=config, cn=ldbm database, cn=plugins,
cn=config
Valid Range
0 to 100
Default Value
40
Syntax
Integer
Example
nsslapd-db-trickle-percentage: 40
3.4.1.19. nsslapd-db-verbose
This attribute specifies whether to record additional informational and debugging messages when
searching the log for checkpoints, doing deadlock detection, and performing recovery. This parameter
is meant for troubleshooting, and enabling the parameter may slow down the Directory Server.
Parameter
Description
Entry DN
cn=config, cn=ldbm database, cn=plugins,
cn=config
Valid Values
on | off
Default Value
off
Syntax
DirectoryString
Example
nsslapd-db-verbose: off
3.4.1.20. nsslapd-dbncache
This attribute can split the LDBM cache into equally sized separate pieces of memory. It is possible
to specify caches that are large enough so that they cannot be allocated contiguously on some
architectures; for example, some systems limit the amount of memory that may be allocated
contiguously by a process. If
nsslapd-dbncache
is
0
or
1
, the cache will be allocated contiguously
in memory. If it is greater than
1
, the cache will be broken up into
ncache
, equally sized separate
pieces of memory.
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