On Wed, 2007-11-28 at 11:18 +0100, Netskin | Corin Langosch wrote: > Now I have to use a cifs mounted maildir directory and found it to be > quite slow, > though I already tuned it a lot. The only way to get it fast was to put > INDEX and > CONTROL files on the local disc and so outside of the maildirs. > Performance is > great but the problem is with submissions to maildirs. > > When a CONTROL directive is given, dovecot writes the submissions file to > this directory too. Now as I have two dovecots in a loadbalancer my > users have > to do their modifications to their subscriptions always twice (for each > server > in the loadbalancer).
Control directory must be shared. Otherwise you'll end up breaking IMAP clients' local caches and causing all kinds of problems, because message UIDs keep changing.
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