[dovecot] Re: current cvs

[Timo Sirainen]

On Wed, 2003-04-16 at 17:20, Farkas Levente wrote:
> at noon we switch to
> mail_cache_fields =
> after that the the clients are usable again.

test5 should be even more usable with this.

>  BUT
> what we can do? what would be the best choise for us?
> the parameters:
..
> - we've got about 300 mailbox
> - most people just has mails in his inbox and sent folder
> - this folder are real huge (a few thousend mails)
> - 300 mailbox has 100000 mails which is about 16GB this means the
>    avarage message size is about 160K (actualy the size are 5-10K
>    or 1-5M)
> 
> so what extra (non default) parameters should I have to use (eg: 
> mail_cache_fields etc.)

There's not really other settings that affect it. I've tried to make
Dovecot handle large mailboxes fast by default, but I haven't really
thought of the rebuild slowdown before.

> > Well, yes, to be safe. But usually you shouldn't need to delete the
> > .imap* files at all. If there's any changes in format or whatever, it's
> > rebuilt automatically. It's needed only if it contains actually invalid
> > data that can't be detected, like there cached ENVELOPE texts were wrong
> > before.
> 
> they were wrong in any previous version? or how can I know that?

NEWS file contains everything that's needed to know when upgrading,
including if index files should be deleted because of old bugs. Except I
forgot to update it for 0.99.8.1 which fixed one of these.