[Dovecot] Dovecot 'suicide'

[Christian Skarby]

Den 19-03-2007 09:52, Luigi Rosa skrev:
> I have a Dovecot installation on a Fedora 4.
> With the last update from Dovecot RC10 to Dovecot RC27, the daemon kills 
> itself every night with this error:
> 
> Mar 17 05:23:11 mail dovecot: Time just moved backwards by 6 seconds. 
> This might cause a lot of problems, so I'll just kill m
> yself now.
> 
> The error appears just after the night maintenance script executes a 
> ntpdate syncronization
> 
> ntpdate is version 4.2.0a at 1.1196-r
> 
> 
> Well, 6 seconds are little more than a blink in human perspective, even 
> if it is a long time for a computer point of view. Couldn't be possible 
> to add a configuration option to avoid the suicide?
> 
> Any other option other than suicide is better, because there could be 
> situations of really unattended servers.
> 
> 
> 
> 
> 
> Ciao,
> luigi
> 

You could probably patch ioloop.c to accept more than 5 seconds of 
adjustment and then recompile. According to the commit[1] it seems 
IOLOOP_MAX_TIME_BACKWARDS_SLEEP determines a time limit in seconds, in 
which dovecot will hang waiting for time to get back to at least what is 
was (assuring that nothing is done "in the past".)

References:
[1] http://www.dovecot.org/list/dovecot-cvs/2007-March/007948.html
[2] http://www.dovecot.org/list/dovecot/2006-May/013641.html
[3] http://www.dovecot.org/list/dovecot/2007-March/020369.html

-- 
Vennlig hilsen

Christian Skarby
Interhost ANS
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