[Dovecot] MySQL dict issues

[Timo Sirainen]

On 11.7.2012, at 21.10, list at airstreamcomm.net wrote:

> Testing using the mysql dict for quota storage (dovecot-2.0.12-2_127.el5), and ran into a couple issues.  First is a permissions issue:
> 
> dovecot: lmtp(26786, dude at test.tld):  Error: net_connect_unix(/var/run/dovecot/dict) failed: Permission denied (euid=5000(<unknown>) egid=5000(<unknown>) missing +r perm: /var/run/dovecot/dict, euid is not dir owner)
> 
> The file /var/run/dovecot/dict is listed with srw------- perms.  I changes the perms to srw----rwx and it works, but I would like to figure out how to configure properly to run with the uid and gid 5000 as this is the user for virtual mail.

http://wiki2.dovecot.org/Dict explains this.

> The second issue is that two identical rows are created in the mysql database for each user quota.  The next message delivered updates both rows.

Identical? Or perhaps one is the number of bytes and the other is the number of messages?

> The last issue might be a documentation omission.  Dovecot warned me that the mysql user did not have DELETE privileges on the quota table:
> 
> dovecot: dict: Error: sql dict: commit failed: DELETE command denied to user 'user'@'a.b.c.d' for table 'domain_user_quotas'

This is done when recalculating quota.

> The quota dict documentation (at http://wiki2.dovecot.org/Quota/Dict) does not mention DELETE being needed:

Updated.