a) Use a current release. That would be 2.4.33. b) Delta-syncrepl supports MMR in current releases c) The reason I suggest delta-syncrepl is because syncrepl is known to be problematic, particularly with MMR. If you want reliable replication, use delta-syncrepl.Is it recommended in MMR setups to use delta-syncrepl before syncrepl in general?
It is by me.
Are there any disadvantages, like using more RAM, or other things to care..?
That depends on the backend, and your filesystem. If your backend is bdb/hdb, then the masters have to be tuned for both DBs with BDB. With all backends, there is increased write activity, so the filesystem selection can be significant, particularly if the filesystem used requires journaling.
I will note I've been using delta-syncrepl since 2005, and it has never had the abundance of issues present in syncrepl.
--Quanah -- Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration