[Dovecot] Config review (2.0.5)

[Ralf Hildebrandt]

* Timo Sirainen <tss at iki.fi>:
> On Thu, 2010-10-14 at 13:42 +0200, Ralf Hildebrandt wrote:
> > * Ralf Hildebrandt <Ralf.Hildebrandt at charite.de>:
> > 
> > > Colleague returned from vacation today and gave some ideas.
> > > Today I turned off the "mail_log" and "notify" plugins and the load
> > > dropped considerably. Both plugins were used with default settings.
> > 
> > I left all settings unchanged and examined the machine. Load stays
> > low, so something the way how logging is done in 2.0.x must have
> > changed.
> 
> Load as in I/O load or CPU load?.. If CPU, which process was eating it?

CPU, specifically system (not user, not idle, not wait).

Process: No special process was peaking. How is the logging
implemented? Each imap process is logging by itself?

> I can't think of any good reason why mail_log would be doing anything
> that would cause such problems (other than maybe just logging too much
> stuff and causing problems because of that).

That kind of logging was on with 1.2.x, unless the defaults changed
between 1.2.x and 2.0.x, it logged the same amount of data...

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de