On Tue, Oct 6, 2009 at 8:19 PM, Patrick Domack wrote:
> If you want to email a list that normally no traffic, but many people
> willing to help with ntp, try timekeep...@fortytwo.ch (not sure if you have
> to subscribe to send emails)
good reference, and good advice -->
http://fortytwo.ch/mailman
Hmm, I forgot to respond to this :)
I believe it's working for you, cause you last set dom0 to use it's
own clock, instead of xen, so now dom0's clock is getting synced via
ntp.
BUT the ALL of your domU's now, have no time sync. If your clock in
your computer is good, then all is fine (ex
If you notice in your ntpq dumps you did, you have >400ms of jitter.
That is a hell of alot.
I dunno if it makes a difference but you used 3 servers from the same
edu, and they have 90ms on them, shouldn't matter, if they where the
only ones with jitter I would replace them, but all 4 of your
just fwiw, as of 10/06/09 19:03:27 still no errors. apparently,
time's moving forward again ...
so, it seems the config above works. why some others have NOT seen
the same problems, remains for me a bit of a mystery.
> The wiki page also suggests clockspeed or chrony if ntpd can't seem to
> keep the time correct. Maybe one of those helps. Hmm. The Chrony's web
> site seems to be gone, wonder if it has a new one somewhere..
sure, but with the _widespread_ use of ntp(d), this bears investigation.
and, unfortuna
On Tue, 2009-10-06 at 11:24 -0700, PGNet Dev wrote:
> and, of course, immediately after hitting 'Send', i see in logs,
>
> Oct 06 11:22:08 dovecot: Error: Time just moved backwards by 1
> seconds. I'll sleep now until we're back in present.
> http://wiki.dovecot.org/TimeMovedBackwards
>
> Oct 6
and, of course, immediately after hitting 'Send', i see in logs,
Oct 06 11:22:08 dovecot: Error: Time just moved backwards by 1
seconds. I'll sleep now until we're back in present.
http://wiki.dovecot.org/TimeMovedBackwards
Oct 6 11:22:07 mx ntpd[17697]: time reset -2.075483 s
Oct 6 11:22:16 mx
progress, i think. thanks to all for comments.
referencing,
http://www.novell.com/communities/node/8629/time-synchronization-xen-setup
http://www.linux.org.za/Lists-Archives/glug-tech-0905/msg00271.html
http://www.gossamer-threads.com/lists/linux/kernel/1039416
i've decoupled DomU's time s
This reminds me of an odd issue I had also, where mine stepped at a
given amount per time too. In the datacenter one server was at limited
it to 10mbit half duplex, and I had endless ntp issues. I could only
replicate this offsite with the same server using 10mbit and fully
saturating the n
On 6/10/2009 12:54 PM, PGNet Dev wrote:
looking at my ntp logs around the same time(s).
...
5 Oct 16:41:17 ntpd[5696]: synchronized to 64.125.78.85, stratum 1
5 Oct 16:51:38 ntpd[5696]: time reset -2.140133 s
5 Oct 16:56:40 ntpd[5696]: synchronized to 66.220.9.122, stratum 1
5 Oct 17:
Hmm, I have been running dovecot inside xen for almost 3 years now
without any time issues. I checked my logs and I have no ntp time
reset messages for the last month.
I think it's more possible ntp is stepping the time instead of slewing
it (http://www.ntp.org/ntpfaq/NTP-s-algo.htm section
Hi,
Here comes an extract from Debian Wiki about Xen to allow a domU to keep
its own time :
(...) your domU is likely using the xen clocksource instead of its own
clock ticks. In practice, this seems to be the cause of infrequent
lockups under load (and/or problems with suspending). A w
hi,
On Mon, Oct 5, 2009 at 4:02 PM, Timo Sirainen wrote:
> And no ntpd in your DomU?
nope.
service ntp status
Checking for network time protocol daemon (NTPD): unused
>> any suggestions as to what/how to fix?
>
> If no one here can give you a good answer, I'd try some Xen mailing
> list.
On Mon, 2009-10-05 at 18:54 -0700, PGNet Dev wrote:
> i'm running Dovecot in a Xen DomU,
..
> @ my Dom0,
>
> ps ax | grep ntp\.conf
>5696 ?Ss 1:05 /usr/sbin/ntpd -p
> /var/run/ntp/ntpd.pid
> -g -u ntp:ntp -i /var/lib/ntp -c /etc/ntp.conf
And no ntpd in your DomU
i've
dovecot --version
1.2.5
hg log | grep changeset | head -n 1
changeset: 9407:a3e16df805e3
in my logs, i'm seeing
...
Oct 05 16:51:40 dovecot: Error: Time just moved backwards by 1
seconds. I'll sleep now until we're back in pr
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