Searching through the archives, helpful information, but I wasn't able to find anything that quite matched my issue. Some background, I am running CentOS 7 with OpenLDAP version 2.4.40 and I have been following along a tutorial I found here:
OpenLDAP 2.4.40 contained a number of serious bugs. I strongly advise against using it, particularly with MMR.
As for your ldapadd, did you hit control-D when done, so it would exit? Otherwise, it's waiting on continued input from you.
--Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>