On Tue, Apr 25, 2006 at 03:38:34PM -0500, Erik Espinoza([EMAIL PROTECTED])
wrote:
> I have about the same number of users on one of the QmailToaster
> servers. We used to have most users on POP3, but have migrated most to
> IMAP-SSL. We noticed no load difference.
It's very quirky, no question. Glad to hear things are working
well for you.
> We're doing the same, this helped big time.
>
> I have a few questions:
> 1) Are you using the latest updates for your distsro?
We typically don't blindly update production servers. Were it of
impact, we generally will. It's by circumstance with production.
> 2) Can you e-mail a pic of your stats-toaster of the IMAP graphs?
It may be easier once I contact you on IRC.
> 3) Can you paste a copy of `rpm -qa | grep toaster`
daemontools-toaster-0.76-1.2.9
qmail-pop3d-toaster-1.03-1.2.10
ezmlm-toaster-0.53.324-1.2.10
maildrop-toaster-1.8.1-1.2.10
squirrelmail-toaster-1.4.5-1.2.13
simscan-toaster-1.1-1.2.6
ucspi-tcp-toaster-0.88-1.2.9
qmail-toaster-1.03-1.2.10
courier-imap-toaster-3.0.8-1.2.9
control-panel-toaster-0.5-1.2.8
ezmlm-cgi-toaster-0.53.324-1.2.10
qmailmrtg-toaster-4.2-1.2.8
maildrop-toaster-devel-1.8.1-1.2.10
vqadmin-toaster-2.3.4-1.2.12
spamassassin-toaster-3.1.0-1.2.10
vpopmail-toaster-5.4.10-1.2.10
autorespond-toaster-2.0.4-1.2.8
qmailadmin-toaster-1.2.9-1.2.11
isoqlog-toaster-2.1-1.2.9
clamav-toaster-0.87.1-1.2.10
> 4) What does your memory usage look like when your users are using
> imap big time?
Usage is low, always. Currently, we're near peak staffing:
total used free shared buffers cached
Mem: 1034560 305212 729348 0 87436 42780
-/+ buffers/cache: 174996 859564
Swap: 2096472 68264 2028208
> 5) Does your hosts table have just localhost and the fqdn defined?
That and an additional definition for a local server. Everything
looks to be in order there:
127.0.0.1 localhost.localdomain localhost
0.0.0.0 mailserver mailserver.2checkout.com
> 6) What kind of delay do you see when you telnet, does it take a while
> for the IMAP banners to pop up?
Yes, that is specifically what I was referring to before.
> 7) Have you migrated from an older version of QmailToaster (such as
> the old 1.0 branch w/ horde)
No-- there have not been any major changes yet.
> 8) Are most of your users accessing the QmailToaster's IMAP through
> some sort of firewall?
> IE
>
> Users -> PIX DMZ -> QmailToaster
Yes, they're routing through our iptables implementation for the
office network.
> 9) Does it make a difference if you disable the iptables firewall
> (temporarily for testing of course)
That would be difficult to do, as they are on different areas of
the network. If it helps you any, when I telnet to localhost:143 on the
mailserver, it has the same results.
> 10) Is your resolv.conf pointing to localhost or the machines static
> ip for your caching name server?
It's pointing to the static.
> Sorry for the large number of questions.
No problem, I appreciate the interest.
> If you have some time, maybe we can speak on IRC later.
Certainly.. network/channel?
Thanks again for the time!
Best regards,
--
Warner Moore
Enterprise Services
2CheckOut.com
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