Netscape NETSCAPE DIRECTORY SERVER 6.1 - ADMINISTRATOR, Administrator'S Manual

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Managing Indexes
Chapter 10 Managing Indexes 379
Changing the All IDs Threshold Value
To change the All IDs Threshold value for your server:
1.
Shut down your Directory Server.
2.
Export all of your directory databases to LDIF using the command line.
For more information, see Chapter 4, “Populating Directory Databases.”
3.
Edit the
serverRoot
/slapd-
serverID
/config/dse.ldif
file with the text editor of
your choice or use the
ldapmodify
command-line utility to edit the
nsslapd-allidsthreshold
entry.
4.
Locate the
nsslapd-allidsthreshold
attribute and change the value to the
desired setting.
5.
Initialize all your databases using
ldif2db
.
See Chapter 4, “Populating Directory Databases.”
6.
Restart your Directory Server.
After you increase your All IDs Threshold value, examine your database cache
size.
Increasing your All IDs Threshold can result in larger memory requirements
caused by larger entry ID lists. The increased in memory requirements will differ
depending on the number and types of indexes that you are maintaining, but the
requirements will never be larger than the factor by which you increased the
nsslapd-allidsthreshold
attribute value. That is, if you double the
nsslapd-allidsthreshold
attribute value, then you should not have to increase
your database cache size to more than double its current value.
Increasing your database cache size by the same factor as you increased the All IDs
Threshold is an extreme measure. If you have the physical memory available, try
increasing your database cache size by a factor that is 25 percent of your
nsslapd-allidsthreshold
value increase. For example, if you doubled the All
IDs Threshold value, increase your database cache size by 50 percent. If necessary,
slowly increase your cache size until you are satisfied with your server’s
performance.
Set your database cache size using the attribute
nsslapd-dbcachesize
attribute.
For more information, see
nsslapd-dbcachesize
attribute in the Netscape
Directory Server Configuration, Command, and File Reference.