Note: This is a temporary requirement and is subject to change over the next 2.4.x beta release cycle
A monitor (slapd-monitor(5)) now needs a rootdn entry. If you do not have one, slapd will fail to start up with an error message like so:
monitor_back_register_entry_attrs(""): base="cn=databases,cn=monitor" scope=one
filter="(namingContexts:distinguishedNameMatch:=dc=example,dc=com)": unable to find entry
backend_startup_one: bi_db_open failed! (1)
slap_startup failed (test would succeed using the -u switch)
Here is a complete database monitor example:
database monitor
rootdn cn=monitor
rootpw change_me