.BR meta ,
and
.BR sql
-backends.
+backends. Please note that the underlying backend must have a configured
+.BR rootdn.
.TP
.B pcache <database> <max_entries> <numattrsets> <entry_limit> <cc_period>
The directive enables proxy caching in the current backend and sets general
or both; in the latter case, any other attribute is redundant and should
be avoided for clarity. A set of attributes can contain "1.1" as the only
attribute; in this case, only the presence of the entries is cached.
+Attributes prefixed by "undef:" need not be present in the schema.
.TP
.B pcacheMaxQueries <queries>