Jose Perez:
> Hi:
>
> On Thu, Mar 26, 2009 at 6:05 PM, Wietse Venema <wie...@porcupine.org> wrote:
> > carconni:
> >> Hi,
> >>
> >> I've been digging around and I haven't been able to find what I'm
> >> really looking for so I thought I'd go straight to the ones "who know".
> >>
> >> Can Postfix be run in a clustered environment (ie: multiple servers
> >> running postfix utilizing one data store) under any OS?
> >
> > Each Postfix instance must have its own config_directory,
> > queue_directory and data_directory. These cannot be shared.
>
> So how can I make sure that a queue file (stored in one node of a
> cluster) it will be managed by another postfix instance (running in a
> different node of a cluster)?
I don't have to solve that problem.
You can use any file/disk sharing mechanism as long as there is no
simultaneous access to queue_directory and data_directory, and as
long as the sharing mechanism respects the RFC 5321 transaction
requirement:
Once the MTA replies with 2XX to END-OF-DATA, mail must not
disappear just because of some crash or power failure.
Thus, running rsync from one disk to another does not qualify,
because there is a time window where a file exists only in one
place.
Wietse
> I thought that using DRBD (network mirrored data) over the postfix
> queue directory would be the solution but apparently I'm wrong...
>
> >> I know NFS is not really recommended - is there any alternative?
> >
> > For support statement, see http://www.postfix.org/NFS_README.html
