Wait, did you mean 'dovecot.index' file? That file is only created occasionally, the actual index is kept in dovecot.index.log.

Aki

> On 03/12/2019 21:20 Tomek Lutelmowski via dovecot <dovecot@dovecot.org> wrote:
>
>
> Thanks, but both commands didn't create dovecot.index. Only when I open folder with IMAP client, the dovecot.index is created.
>
>
> wt., 3 gru 2019 o 18:16 Aki Tuomi <aki.tuomi@open-xchange.com> napisał(a):
> >
> >  > On 03/12/2019 18:30 Tomek Lutelmowski via dovecot <dovecot@dovecot.org> wrote:
> >  >
> >  >
> >  > Hello,
> >  >
> >  > I'm using maildirs, and I have problems with big mailboxes (~ 20000 emails, 30-50GB) - sometimes access to such mailbox takes very long (~10 minutes), I would like to be able to create index for mailbox in background, but I couldn't find any way to do it. So far I tried:
> >  >
> >  > doveadm -D -vvv index -u user 'Folder'
> >  >
> >  > But even if this folder have no dovecot.index* files - I always get:
> >  >
> >  > doveadm(user): Info: Wersje robocze: Cache is already up to date
> >  >
> >  > It seems that doveadm doesn't actually checks if the index is present. The index is created only when I log with IMAP client and check the folder.
> >  >
> >  > So i tried:
> >  > doveadm mailbox cache purge -u user 'Folder' 
> >  >
> >  > No joy either:
> >  > doveadm(user): Error: Cache is unusable
> >  >
> >  > And command below doesn't actually do anything to index:
> >  > doveadm -vvv force-resync -u user 'Folder'
> >  >
> >  > Is there any way to use doveadm tool to create/fix index? Shouldn't the index be updated on each email arrival?
> >  >
> >  > Cheers,
> >  > TomekL
> > 
> >  Try first 'doveadm fetch -u victim body ALL'. If this does not produce any useful results, try 'doveadm force-resync -u victim "*"'.
> > 
> >  Aki
> >