Hi, when creating a copy of a mail, dovecot provides a feature that will store its contents only once. In maildir, this is done by means of hard links, while mdbox has some special refcounting mechanism. My question is, how can we convert mails from maildir to mdbox without duplicating these copies? It seems that dsync does not detect the hard links. Even if the hard-linked mails have the same GUID listed in dovecot-uidlist, dsync creates multiple instances of the text. - Is there some way to make dsync notice the hard links? (I used dovecot 2.0.17) - Alternatively, is there some tool to deduplicate the mdbox after it has been converted from maildir? - NB: I am not talking about single-instance storage for attachments. Thank you very much, Christoph -- Christoph Bu?enius Rechnerbetriebsgruppe der Fakult?ten Informatik und Mathematik Technische Universit?t M?nchen +49 89-289-18519 <> Raum 00.05.055 <> Boltzmannstr. 3 <> Garching
On 13.2.2012, at 16.16, Christoph Bu?enius wrote:> when creating a copy of a mail, dovecot provides a feature that will store its contents only once. In maildir, this is done by means of hard links, while mdbox has some special refcounting mechanism. > > My question is, how can we convert mails from maildir to mdbox without duplicating these copies? It seems that dsync does not detect the hard links. Even if the hard-linked mails have the same GUID listed in dovecot-uidlist, dsync creates multiple instances of the text. > - Is there some way to make dsync notice the hard links? (I used > dovecot 2.0.17)It should deduplicate when GUIDs are the same.. I guess I'll have to look into why it's not working.
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