I think the real question here is: what replication strategy will make supplier server consume less memory: Syncrepl - pushing records from supplier to consumers ? Consumers pulling records from supplier via syncrepl ? Delta-syncrepl pushing records from supplier to consumers ? Consumers pulling records from supplier via Delta-syncrepl ?
delta syncrepl will use the least amount of memory on the provider, as long as all the replicas remain current and don't go into refresh mode. However, that gives you the overhead of running two databases on the supplier. I've found it more reliable overall, but you lose MMR and Mirror Mode support.
--Quanah -- Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc -------------------- Zimbra :: the leader in open source messaging and collaboration