[CentOS] CentOs 5.6 and Time Sync

Wed Apr 13 23:16:03 UTC 2011
Denniston, Todd A CIV NAVSURFWARCENDIV Crane <todd.denniston at navy.mil>

> -----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.