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cn=config

Valid Range 100 to the maximum 32-bit integer value

(2147483647) entry IDs

Default Value 4000

Syntax Integer

Example nsslapd-idlistscanlimit: 40 00

3.4 .1.3. nsslapd-cache-aut osize

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. T o 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. T o 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 Descript ion

Entry DN cn=config, cn=ldbm database, cn=plugins,

cn=config

Valid Range 0 (turns cache autosizing off) to 100

Default Value 0

Syntax Integer

Example nsslapd-cache-autosize: 80

3.4 .1.4 . nsslapd-cache-aut osize-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. T hat is, if there were two

databases, each of them would receive 20 percent. T his 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. T o 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 Descript ion

Entry DN cn=config, cn=ldbm database, cn=plugins,

cn=config

Valid Range 0 to 99

Default Value 50 (This will not necessarily optimize operations.)

Syntax Integer

Example nsslapd-cache-autosize-split: 50

3.4 .1.5 . nsslapd-dbcachesize

This performance tuning-related attribute specifies the database index cache size, in bytes. T his is one

of the most important values for controlling how much physical RAM the directory server uses.

This is not the entry cache. This is the amount of memory the Berkeley database backend will use to

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