> On 2. Dec 2021, at 10.57, Einar Bjarni Halldórsson <ei...@isnic.is> wrote:
> root@ht-mailstore01:/data/mail/hostmasterlog/mdbox/mailboxes/INBOX/dbox-Mails
> # doveadm dump . | grep -c hdr.MESSAGE-ID
> 4464736
>
> In dovecot config I have `fts_enforced = yes` and after the search for
> Message-ID finishes and returns UID, I can do a FETCH .. ENVELOPE on it and
> it responds immediately.
> I was under the impression that fts_enforced forces all searches, headers and
> body, to go to solr. Then all dovecot would have to do was to return the UID
> returned by solr.
> Unless solr doesn't return UID and dovecot has to take the result from solr
> and lookup the UID, and with a full 1 GB cache file it always has to scan the
> whole index?
>
> Nothing seems to be completely broken, I always receive a result, it's just
> that it takes 30 seconds when I really want it to be ~5 seconds at most.
>
> I guess if we can't find a solution and 30 seconds becomes a real problem,
> we'll split the mailbox up by years. It should help with the size of the
> cache. It makes the searching code a little more complicated since it has to
> figure out the sent date before it can search, but it's doable.
If you have fts_enforced = yes then that SEARCH probably goes to solr even if
message-id is found from cache. So the delay is probably on solr side.
Can you try to remove fts_enforced for that one particular user?
Sami
