OpenLDAP documentation states that replogfile directive should not be used on slave ldap. And in your examples (Example 7.3.2. LDAP Slave Configuration File — /etc/openldap/slapd.conf - PDF's page 200) it is there. To comply with OpenLDAP's documentation, I would advise to remove replogfile directive from example slave configuration file. Another a bit connected issue is with cn=updateuser,dc=abmas,dc=biz, it haven't been created anywhere in the whole guide, it just popped on in example configuration files. Some people might be a bit puzzled with that.
Thanks. I've updated the documentation per your suggestions. - JHT
sorry for the same, cleaning up the database to prevent unecessary reopens of bugs.