On Thu, 2010-03-25 at 10:58 +0000, Brian Candler wrote: > Mar 25 10:22:23 freebsd-dev dovecot: IMAP(br...@dev.example.com): Our dotlock > file /mail/0/6/37/30/brian%dev.example.com/dovecot-uidlist.lock was > overridden (locked 0 secs ago, touched 0 secs ago)
Wonder if dotlock_use_excl=no helps with this. > Interestingly, these messages imply that dovecot is still using dotlocking > in some circumstances, even though I've definitely set fcntl locking. Yes, dotlocking is always used for some files. > It's possible that switching the Linux NFS server to a Netapp will help > (which is what it will be deployed onto eventually anyway) NetApp should help, but I doubt it'll remove all the problems. Also Dovecot's NFS workarounds work better for Linux NFS client than for FreeBSD.. > Maybe the load pattern from 'real' IMAP clients is such that these problems > generally don't show in practice? (i.e. it would be unusual for a single > IMAP client to make simultaneous changes to the same folder via different > TCP connections) Right. They probably don't show up all that often for real users, but imaptest shows the worst case situation.
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