[CentOS] Do I need large Cyrus DB files?
hyclak at math.ohiou.edu
Fri May 26 15:02:43 UTC 2006
On Fri, May 26, 2006 at 10:55:50AM -0400, William L. Maltby enlightened us:
> > On Fri, 2006-05-26 at 09:08 -0400, Steve Snyder wrote:
> > > While investigating my earlier Sendmail confusion I noticed these files:
> > >
> > > # ll /var/lib/imap/db/
> > > total 15952
> > > -rw------- 1 cyrus mail 16384 Jan 22 04:02 __db.001
> > > -rw------- 1 cyrus mail 663552 Jan 22 04:02 __db.002
> > > -rw------- 1 cyrus mail 98304 Jan 22 04:02 __db.003
> > > -rw------- 1 cyrus mail 22568960 Jan 22 04:02 __db.004
> > > -rw------- 1 cyrus mail 32768 Jan 22 04:02 __db.005
> > > -rw------- 1 cyrus mail 64 Jan 22 04:02 log.0000000001
> > >
> > > The date/time stamps suggest that these files were create by a cron job
> > > the day after I installed CentOS v4.2 and have not been modified since.
> > >
> > > I haven't done any explicit Cyrus configuration, and actually I don't have
> > > a clear idea of what mail-related functionality Cyrus actually provides.
> > > If it is in use at all on my system it is done as some aspect of the
> > > default CentOS4 installation. Those __db files are not owned by any RPM
> > > package, although the /var/lib/imap/db/ is owned by the cyrus-imapd
> > > package.
> > >
> > > Do I really need a 22MB empty database file on my system?
> > I've got 'em too! And I just do evolution/thunderbird pop3 only. Must be
> > needed... until we discover them. Thanks, I had not! :-)
> > I'm gonna move the directory away and see what happens.
> > > <snip sig stuff>
> Well, moved the directory, repooted and both evolution and thunderbird
> continue to work in and out. But, I *don't* use imap, only pop-3. I have
> sendmail disabled. My server incoming is ISP's pop server and outbount
> is my ISP's SMTP server.
Cyrus is used to *serve* POP3/IMAP from your machine. If you aren't checking
mail that is delivered to your box, you're not using it and can most likely
get rid of it.
If you're running a mail server, then it's usually useful to get the mail
back off, in which case you could use Cyrus, Dovecot, or any number of other
Hope that clarifies...
Department of Mathematics
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