On 08/26/2015 01:33 PM, Thomas Leuxner wrote:
> * Timo Sirainen <t...@iki.fi> 2015.08.25 22:21:
>
>> There's no good default setting here. It depends on your userdb settings
>> and/or mail_uid setting. So for example if your imap processes are running
>> as vmail user, you should set service imap-hibernate { unix_listener
>> imap-hibernate { user = vmail } }. Then again if you are using system users
>> (or otherwise multiple UIDs) it gets more difficult to implement this
>> securely (mode=0666 works always, but security isn't too good). This same
>> problem exists for various other parts of Dovecot, for example
>> indexer-worker and dict services.
>
> I have it working (I guess) with these user settings (virtual users using
> 'vmail'):
>
> service imap-hibernate {
> unix_listener imap-hibernate {
> user = vmail
> }
> }
>
> I had to assign the imap-master socket the user the imap-hibernate process is
> using to avoid messages like this:
>
> Aug 25 23:16:02 nihlus dovecot: imap-hibernate(t...@leuxner.net): Error:
> net_connect_unix(/var/run/dovecot/imap-master) failed: Permission denied
> Aug 25 23:16:02 nihlus dovecot: imap-hibernate(t...@leuxner.net): Failed to
> connect to master socket in=126 out=944 hdr=0 body=0 del=0 exp=0 trash=0
>
> service imap {
> unix_listener imap-master {
> user = dovecot
> }
> }
>
> With this I see messages like this in the logs:
>
> Aug 26 09:48:06 nihlus dovecot: imap-hibernate(t...@leuxner.net): Connection
> closed in=189 out=4252 hdr=0 body=0 del=0 exp=0 trash=0
> Aug 26 12:20:29 nihlus dovecot: imap-hibernate(t...@leuxner.net): Connection
> closed in=109 out=4714 hdr=0 body=0 del=0 exp=0 trash=0
>
> I'm a bit puzzled as to when hibernate actually kicks in because most of the
> time I see normal imap processes running without them being hibernated:
Did you specify a value other than zero for 'imap_hibernate_timeout'?
br,
Teemu
> $ ps aux | grep dovecot/imap
> dovenull 6791 0.0 0.0 18196 4772 ? S 06:39 0:00
> dovecot/imap-login
> dovenull 7107 0.0 0.0 18196 4736 ? S 08:00 0:00
> dovecot/imap-login
> dovenull 7112 0.0 0.0 18332 4492 ? S 08:00 0:00
> dovecot/imap-login
> dovenull 7333 0.0 0.0 18332 4772 ? S 08:45 0:00
> dovecot/imap-login
> dovenull 7675 0.0 0.0 18196 4628 ? S 10:13 0:00
> dovecot/imap-login
> dovenull 7677 0.0 0.0 18332 4532 ? S 10:14 0:00
> dovecot/imap-login
> dovenull 7821 0.0 0.0 18196 4532 ? S 10:44 0:00
> dovecot/imap-login
> dovenull 8156 0.0 0.0 18196 4756 ? S 12:01 0:00
> dovecot/imap-login
> vmail 8157 0.0 0.0 45624 9608 ? S 12:01 0:00 dovecot/imap
> dovenull 8158 0.0 0.0 18332 4628 ? S 12:01 0:00
> dovecot/imap-login
> vmail 8159 0.0 0.0 44772 9256 ? S 12:01 0:00 dovecot/imap
> dovenull 8160 0.0 0.0 18196 4652 ? S 12:01 0:00
> dovecot/imap-login
> vmail 8161 0.0 0.0 46072 9760 ? S 12:01 0:00 dovecot/imap
> dovenull 8162 0.0 0.0 18196 4548 ? S 12:01 0:00
> dovecot/imap-login
> dovenull 8279 0.0 0.0 18332 4736 ? S 12:22 0:00
> dovecot/imap-login
> vmail 8280 0.0 0.0 40712 5164 ? S 12:22 0:00 dovecot/imap
> dovenull 8341 0.0 0.0 18196 4740 ? S 12:25 0:00
> dovecot/imap-login
> vmail 8344 0.0 0.0 46312 10568 ? S 12:25 0:00 dovecot/imap
>
