[CentOS] CentOs 5.6 and Time Sync
Denniston, Todd A CIV NAVSURFWARCENDIV Crane
todd.denniston at navy.mil
Wed Apr 13 23:16:03 UTC 2011
> -----Original Message-----
> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
> Behalf Of Peter Brady
> Sent: Wednesday, April 13, 2011 18:39
> To: CentOS mailing list
> Subject: Re: [CentOS] CentOs 5.6 and Time Sync
>
> On 14/04/11 7:42 AM, Mailing List wrote:
> > remote refid st t when poll reach delay
> offset
> > jitter
> >
>
=======================================================================
> =======
> >
> > bindcat.fhsu.ed 132.163.4.101 2 u 1015 1024 377 49.987 -
> 15082.
> > 6919.88
> > 216.45.57.38 108.71.253.18 2 u 998 1024 377 83.112 -
> 15139.
> > 6900.14
> > javanese.kjsl.c 69.36.224.15 2 u 1 1024 377 109.083 -
> 29233.
> > 7285.83
> > *LOCAL(0) .LOCL. 10 l 13 64 377 0.000
> 0.000
> > 0.001
>
> <snip>
>
> Glad you've got a fix but you should keep an eye on it.
>
> If you look at the output for ntpq you have three stratum 2 servers
> which differ by ~15s from both you and each other. Stratum 2 servers
> should be a lot closer than 15s given that they are only one link
> removed from some form of atomic clock.
>
I think you may be comparing a couple of rotting apples to one that is
just now ripening.
when offset
1015 15082
998 15139
1 29233
i.e., the samples that are 17 seconds apart in the taking are .057S
apart in value, and trending longer.
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