On 24 Feb 2017, at 0.08, Mark Moseley <moseleym...@gmail.com> wrote: > > As someone who is about to begin the process of moving from maildir to > mdbox on NFS (and therefore just about to start the 'director-ization' of > everything) for ~6.5m mailboxes, I'm curious if anyone can share any > experiences with it. The list is surprisingly quiet about this subject, and > articles on google are mainly just about setting director up. I've yet to > stumble across an article about someone's experiences with it. > > * How big of a director cluster do you use? I'm going to have millions of > mailboxes behind 10 directors.
I wouldn't use more than 10. > I'm guessing that's plenty. It's actually split over two datacenters. Two datacenters in the same director ring? This is dangerous. if there's a network connectivity problem between them, they split into two separate rings and start redirecting users to different backends. > * Do you have consistent hashing turned on? I can't think of any reason not > to have it turned on, but who knows Definitely turn it on. The setting only exists because of backwards compatibility and will be removed at some point.