Re: [Dovecot] Multi Server Exim/Dovecot and NFS

2012-07-16 Thread Robert Blayzor
On Jul 16, 2012, at 11:34 AM, David Warden wrote: > I can't speak to FreeBSD but we have had no problems using the NetApp NFS > lock manager (lock_method = fcntl) instead of dotlock. Previously we were > using dotlock and any skew in clocks on the Dovecot servers would cause > higher CPU usage a

Re: [Dovecot] Multi Server Exim/Dovecot and NFS

2012-07-16 Thread David Warden
On Jul 16, 2012, at 8:58 AM, Robert Blayzor wrote: > In reading the Dovecot NFS WIKI entry: > > http://wiki2.dovecot.org/NFS > > It mentions a FreeBSD NFS client caching bug. I believe that bug only exists > pre-8.x ? It seems that a patch in the PR notes was MFC'd and made it into > 8.x at

Re: [Dovecot] Multi Server Exim/Dovecot and NFS

2012-07-16 Thread Charles Marcus
On 2012-07-16 10:19 AM, Robert Blayzor wrote: The only issue I see right now is Dovecot index file write bashing if a user accesses their mailbox from multiple locations at the same time, and I gave that example in the previous post. That seems to be more and more common these days but still

Re: [Dovecot] Multi Server Exim/Dovecot and NFS

2012-07-16 Thread Robert Schetterer
Am 16.07.2012 16:19, schrieb Robert Blayzor: > > We're talking about tens of thousands of mailboxes and at least half a dozen > servers involved. There is quite a bit of traffic. We've been running > Maildir via NFS with another mailserver product for some time, and it's been > ok as far as

Re: [Dovecot] Multi Server Exim/Dovecot and NFS

2012-07-16 Thread Roland Rosenfeld
> The only issue I see right now is Dovecot index file write bashing > if a user accesses their mailbox from multiple locations at the same > time, and I gave that example in the previous post. That seems to > be more and more common these days but still not the norm for 80%+ > of the mailboxes we

Re: [Dovecot] Multi Server Exim/Dovecot and NFS

2012-07-16 Thread Robert Blayzor
On Jul 16, 2012, at 9:15 AM, Robert Schetterer wrote: > There where hot disputs relating such setups, read list archive > > i guess nfs is simply not the ideal solution, however its used in real > existing setups, also maildir may not ideal > > for good advice there should be more info about how

Re: [Dovecot] Multi Server Exim/Dovecot and NFS

2012-07-16 Thread Robert Schetterer
Am 16.07.2012 14:58, schrieb Robert Blayzor: > In reading the Dovecot NFS WIKI entry: > > http://wiki2.dovecot.org/NFS > > It mentions a FreeBSD NFS client caching bug. I believe that bug only exists > pre-8.x ? It seems that a patch in the PR notes was MFC'd and made it into > 8.x at some po

[Dovecot] Multi Server Exim/Dovecot and NFS

2012-07-16 Thread Robert Blayzor
In reading the Dovecot NFS WIKI entry: http://wiki2.dovecot.org/NFS It mentions a FreeBSD NFS client caching bug. I believe that bug only exists pre-8.x ? It seems that a patch in the PR notes was MFC'd and made it into 8.x at some point. (at least I checked the source in 8.3 and it was ther