Django [BOfH]: > Via clusterfs Klaus may share /var/lib/postfix/cachepool between all 4 MX.
LMDB Postfix caches support sharing; non-LMDB caches cannot be
shared at all.
However, the Postfix LMDB client requires fcntl locks. If clusterfs
does not support fcntl locks, then things will blow up. If fcntl
performance sucks, use memcache without persistent backup.
Wietse
