[ntp:questions] Servers with identical ntp.conf keep falling out of sync

Janardhan Molumuri mjanardhan at gmail.com
Tue Jan 16 08:18:21 UTC 2007


How much drift you are observing? I observed a drift of few
milliseconds because of the local clocks.

I reduced the poll interval to 64sec, it helped a little bit. From
what I read from the docs ntp with mulicast model configuration we can
achieve more accuracy.

--
- JNR.

On 15 Jan 2007 21:13:55 -0800, Gushi <google at gushi.org> wrote:
> Hey all, I have two servers in two different datacenters using the same
> ntp.conf.
>
> To wit:
>
> # Prohibit general access to this service.
> restrict default ignore
>
> # Permit all access over the loopback interface.  This could
> # be tightened as well, but to do so would effect some of
> # the administrative functions.
> restrict 127.0.0.1
>
> server 0.us.pool.ntp.org
> server 1.us.pool.ntp.org
> server 2.us.pool.ntp.org
>
> driftfile /etc/ntp/drift
>
> The problem is, that the servers keep drifting apart from each other,
> to the degree that DNS TSIG transactions break down.  Is there anything
> obvious to try to fix this?  Usually when this happens, killing ntpd
> and then running ntpdate will fix it.
>
> -Dan
>
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>


-- 
-- JNR



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