On Feb 28, 2008, at 4:38 PM, Jeff Fookson wrote:
> is about 200GB. There are typically about 200 'imapd'
> processes at a given time and a hugely varying number of
> 'lmtpds' (from
> about 6 to many hundreds during
> times of greatest pathology). System load is correspondingly in the
> 2-15
On Fri, Feb 29, 2008 at 07:16:24AM +0100, Pascal Gienger wrote:
> Jeff Fookson <[EMAIL PROTECTED]> wrote:
>
> > Databases are all skiplist.
>
> As a rule of thumb, do not use skiplist for the duplicate delivery
> suppression database (deliver.db). Even if everybody hates it, use
> BerkeleyDB, V
On Thu, Feb 28, 2008 at 04:56:18PM -0600, Kenneth Marshall wrote:
> It may be that the software RAID 5 is your problem. Without the
> use of NVRAM for a cache, all of the writes need all 3 disks.
> That will cause quite a bottle-neck.
It's much worse than that. Since metadata updates are almost c
On Fri, 2008-02-29 at 08:45 -0600, Sam Egelhof wrote:
> Does Cyrus-imapd take advantage of Dual and\or Quad core processors?
Yes.
> We are looking at upgrading our server to either 2x Dual core Xeon’s
> or 1 x Quad core Xeon processor. Does Cyrus have the ability to take
> advantage of this?
Y
Does Cyrus-imapd take advantage of Dual and\or Quad core processors? We are
looking at upgrading our server to either 2x Dual core Xeon's or 1 x Quad core
Xeon processor. Does Cyrus have the ability to take advantage of this?
Thanks,
Sam
Cyrus Home Page: http://cyrusimap.web.cmu.edu/
Cyrus
I just got out of this kind of situation.
If your OS is Linux, can you post /etc/syslog.conf?
Allen
Jeff Fookson wrote:
> Folks-
>
> I am hoping to get some help and guidance as to why our installation of
> cyrus-imapd 2.3.9
> is unusably slow. Here are the specifics:
>
> The software is running
Can you put a "-" just before /var/log/messages and
/var/log/cyrus/imapd.log in your /etc/syslog.conf? (just like
-/var/log/maillog)
and restart syslog: service syslog restart.
Allen
Jeff Fookson wrote:
> Allen Chen wrote:
>
>> I just got out of this kind of situation.
>> If your OS is Linux,
> Can you put a "-" just before /var/log/messages and
> /var/log/cyrus/imapd.log in your /etc/syslog.conf? (just like
> -/var/log/maillog)
> and restart syslog: service syslog restart.
Another culprit can be name resolution. At least localhost and the servers
own hostnames should be listed in the
Does Cyrus-imapd take advantage of Dual and\or Quad core processors? We are
looking at upgrading our server to either 2x Dual core Xeon's or 1 x Quad core
Xeon processor. Does Cyrus have the ability to take advantage of this?
Since it uses a multi-process model, yes it does.
However that's no
We're upgrading our mail server hardware, and at the same time moving
from Fedora to CentOS for the OS. The version of Cyrus we run currently
is 2.3.1, and the one on CentOS is 2.3.7
(cyrus-imapd-2.3.7-1.1.el5.x86_64.rpm).
I've setup the configuration to match our old system, and verified that
lo
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On Thu, Feb 28, 2008 at 10:10:46AM -0600, [EMAIL PROTECTED] wrote:
> Also, part of the same email message, the log entry below alway show for
> that user... I don't know what that means
>
> sendmail[24713]: m1QIIdVB024713: Authentication-Warning
Delivery through the lmtpd process should not take long enough
to cause this type of backlog unless there is a performance
bottle-neck, such as the delivery DB format that has been suggested
previously, particularly in such a small system.
Cheers,
Ken
On Thu, Feb 28, 2008 at 04:09:58PM -0600, Paul
On Thu, 28 Feb 2008, Michael Bacon wrote:
> I've never seen drbd used for Cyrus, but it looks like other folks have
> done it. The combination of drbd+lvm2+ext3 might put you somewhere
> unpleasant, but I'll have to let the Linux-heads jump in on that one.
Don't try it with 4k stacks, IMO. It
> Michael Bacon wrote:
>
>> What database format are you using for the mailboxes database? What
>> kind of storage is the "metapartition" (usually /var/imap) on? What
>> kind of storage are your mail partitions on?
>
> Databases are all skiplist. Our mail partition and the metapartition are
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