Red Hat DIRECTORY SERVER 8.0 Command Reference Manual page 126

Chapter 3. Plug-in Implemented Server Functionality Reference
3.4.1.3. nsslapd-cache-autosize
This performance tuning-related attribute, which is turned off by default, specifies the percentage of
free memory to use for all the combined caches. For example, if the value is set to 80, then 80 percent
of the remaining free memory would be claimed for the cache. To run other servers on the machine,
then set the value lower. Setting the value to 0 turns off the cache autosizing and uses the normal
nsslapd-cachememsize and nsslapd-dbcachesize attributes.
NOTE
If the nsslapd-cache-autosize attribute and nsslapd-cache-autosize-split
attribute are both set to high values, such as 100, then the Directory Server may fail
to start and return an error message. To fix this issue, reset the nsslapd-cache-
autosize and nsslapd-cache-autosize-split attributes to a more reasonable
level. For example:
nsslapd-cache-autosize: 60
nsslapd-cache-autosize-split: 60
Parameter
Entry DN
Valid Range
Default Value
Syntax
Example
3.4.1.4. nsslapd-cache-autosize-split
This performance tuning-related attribute specifies the percentage of cache space to allocate to the
database cache. For example, setting this to 60 would give the database cache 60 percent of the
cache space and split the remaining 40 percent between the backend entry caches. That is, if there
were two databases, each of them would receive 20 percent. This attribute only applies when the
nsslapd-cache-autosize attribute has a value of 0.
NOTE
If the nsslapd-cache-autosize attribute and nsslapd-cache-autosize-split
attribute are both set to high values, such as 100, then the Directory Server may fail to
start and return error message. To fix this issue, reset the nsslapd-cache-autosize
and nsslapd-cache-autosize-split attributes to a more reasonable level. For
example:
nsslapd-cache-autosize: 60
nsslapd-cache-autosize-split: 60
116
Description
cn=config, cn=ldbm database, cn=plugins,
cn=config
0 (turns cache autosizing off) to 100
0
Integer
nsslapd-cache-autosize: 80