dovecot - Jul 2013 - reload without shutting imap connections down

Hello,

we have some problems with users who report connectionproblems to dovecot 
sometimes. According to the logs there are dovecot reloads at this times.
Seems that a reload also causes dovecot to shut all imapconnections down:

Jul 16 13:31:40 myhostname dovecot: master: Warning: SIGHUP received - 
reloading configuration
Jul 16 13:31:40 myhostname dovecot: imap: Server shutting down. 
bytes=251/675

I tried to reload by initscript or sending -HUP manually to pid, dovecot is 
shutting down imapconnections and i think this is the reason for users to 
report this problems with some clients.
This seems to be new with versions 2.x, i have some old 1.2.x dovecots 
running and cant find "Server shutting down" in their logs after
reload.

I have still potential to reduce reloads, but cant avoid them completely. Is 
there a workaround?

Thanks,
Hajo

Hajo,
>From the looks and sounds of things your Dovecot installation and
configuration is crashing without creating a dump.  What happens prior to
the aforementioned log entries?

Thanks,
Dan


On Tue, Jul 16, 2013 at 11:44 AM, Hajo Locke <hajo.locke at gmx.de> wrote:
> Hello,
>
> we have some problems with users who report connectionproblems to dovecot
> sometimes. According to the logs there are dovecot reloads at this times.
> Seems that a reload also causes dovecot to shut all imapconnections down:
>
> Jul 16 13:31:40 myhostname dovecot: master: Warning: SIGHUP received -
> reloading configuration
> Jul 16 13:31:40 myhostname dovecot: imap: Server shutting down.
> bytes=251/675
>
> I tried to reload by initscript or sending -HUP manually to pid, dovecot
> is shutting down imapconnections and i think this is the reason for users
> to report this problems with some clients.
> This seems to be new with versions 2.x, i have some old 1.2.x dovecots
> running and cant find "Server shutting down" in their logs after
reload.
>
> I have still potential to reduce reloads, but cant avoid them completely.
> Is there a workaround?
>
> Thanks,
> Hajo
>


-- 
Daniel Reinhardt
cryptodan at cryptodan.net
http://www.cryptodan.net
301-875-7018(c)
410-455-0488(h)

Hi,
> we have some problems with users who report connectionproblems to
> dovecot sometimes. According to the logs there are dovecot reloads at
> this times.
> Seems that a reload also causes dovecot to shut all imapconnections down:
Just a wile guess:
Could it have something to do with the "shutdown_clients" setting, 
perhaps..?