[Dovecot] Migration questions...

[tomas at tuxteam.de]

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On Fri, May 15, 2009 at 11:28:42AM +0000, Richard Hobbs wrote:

[...]

> > Only dovecot 'deliver' will update the index on delivery.
> 
> Do does this mean that it's slightly slower to actually deliver the mail
> with dovecot (because it's writing two places instead of one), but it
> saves the files having to be indexed again, so overall potentially faster?

Things get re-indexed on client request if Dovecot sees that index is
stale. So you are buying faster response times for clients with somewhat
higher server load at mail delivery.

I don't know how this piecemeal update of the index stacks up against a
complete re-index, but I'd assume it to be more efficient (only having
to do new mails instead of whole mailbox). Still, I find the re-index to
be almost instantaneous on not-so-small mailboxes (hundreds of MB) and
fairly modest hardware, by today's standards.

Regards
- -- tomás
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