Red Hat DIRECTORY SERVER 7.1 - ADMINISTRATOR Administrator's Manual page 389

• Substring index (sub) — The substring index is a costly index to maintain, but
it allows efficient searching against substrings within entries. Substring
indexes are limited to a minimum of three characters for each entry.
For example, searches of the form:
cn=*derson
would match the common names containing strings such as:
Bill Anderson
Jill Henderson
Steve Sanderson
Similarly, the search for:
telephonenumber= *555*
would return all the entries in your directory with telephone numbers that
contain .
555
• International index — The international index speeds up searches for
information in international directories. The process for creating an
international index is similar to the process for creating regular indexes, except
that you apply a matching rule by associating a locale (OID) with the attributes
to be indexed.
For a listing of supported locales and their associated OIDs, refer to Appendix
D, "Internationalization." If you want to configure the Directory Server to
accept additional matching rules, contact Red Hat Professional Services.
• Browsing (virtual list view) index — The browsing index, or virtual list view
index, speeds up the display of entries in the Directory Server Console. This
index is particularly useful if a branch of your directory contains hundreds of
entries; for example, the
on any branchpoint in the directory tree to improve display performance. You
do this through the Directory Server Console or by using the
command-line tool, which is explained in the Red Hat Directory Server
Configuration, Command, and File Reference.
Indexing may be required for large databases. For instance, if you have more than
1000 entries in a database, you must create a browsing index to be able to view
directory entries from the Console. Also, index sizes can be larger than in previous
releases, so you may want to increase your database cache size. To reconfigure
your cache size, refer to "nsslap-dbcachesize" in the Red Hat Directory Server
Configuration, Command, and File Reference.
branch. You can create a browsing index
ou=people
About Indexes
vlvindex
Chapter 10 Managing Indexes 389