[Kroupware] Re: Web interface frontend

konold@erfrakon.de kroupware@mail.kde.org
Fri, 27 Sep 2002 17:37:35 +0200 (CEST)


On Fri, 27 Sep 2002, Marc Mutz wrote:

Hi Marc,

> > P.S.: reading a mailspool over nfs is _not_ a good idea.
>
> Why? If you mean that the traffic is not encrypted I'd agree,

Yes!

> but if you
> mean the locking issue:

Yes!

> Cyrus is working with maildirs

Not directly via the fs layer!

The Cyrus mail store is very similar to maildir but is controlled via
cyrus. So direct manipulation of the files via a MUA is very dangerous and
destroys vital cyrus data. (database about preparsed headers etc)

 > and they need no
> locking whatsoever. So they're save over NFS.

Sorry, but this is also not the case for pure maildir implementations.
Just think about concurrent access of multiple clients (which is allowed
according to the imap standard!)

BTW: nfs is never a scalable option in general.

Yours,
-- martin

Dipl.-Phys. Martin Konold

e r f r a k o n
Erlewein, Frank, Konold & Partner - Beratende Ingenieure und Physiker
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email: martin.konold@erfrakon.de