Dovecot frequently full-text reindexes the whole maildir

[Frank-Ulrich Sommer]

Hi,

I'm not an expert, but am doing something similar (moving messages and training the spam filter). 

To detect the existence of new messages looking directly at the maildir can be a quick and dirty solution to get a trigger event.

But to move or delete I think you should use  'doveadm' to search for all messages in your spam directory and get a list of all uids an guids. Then you can call doveadm again to move vor delete the messages by id.

Just look for "doveadm search/move/purge" in the dovecot wiki.
This should ensure that the indexes stay up to date.

Am 27. Oktober 2015 11:24:39 MEZ, schrieb vitalif at yourcmc.ru:
>Hi!
>
>I'm using Dovecot 2.2.13 (Debian Jessie package 1:2.2.13-12~deb8u1) on 
>my personal mail server (the address I'm writing from is on this 
>server).
>
>I use Maildirs, I have fts + fts_squat enabled, and I have a problem 
>with it for a long time - dovecot seems to not update the index always 
>"incrementally".
>
>Yesterday I've finally made a test by telneting to imap port and
>issuing 
>a search request. Dovecot started to reindex the mailbox. Full 
>reindexing has taken around 15-20 minutes.
>
>After reindexing the fulltext searches were fast, just as they should 
>be. And they were fast yesterday even after some new emails arrived.
>
>But I've tried to do a new search today and Dovecot started to reindex 
>the whole maildir again!
>
>Why is it reindexing the whole maildir again? Could it be related to my
>
>anti-spam scripts removing messages from SPAM imap folder? And if yes, 
>how to remove them correctly?
>
>-- 
>With best regards,
>   Vitaliy Filippov

-- 
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