Re[2]: NTP with only GPS/PPS flags PPS as falseticker

[Nick Burkitt]

Hi Gary.

I'd really like to understand what's happening before investing the time 
to change over to chrony. Although it may be the best long-term 
solution.
I think the problem is that ntpd always flags my GPS as a falseticker, 
so when the network time sources go away, it may be left with no 
tickers, rather than one.

-Nick

------ Original Message ------
From: "Gary E. Miller" <address@hidden>
To: address@hidden
Sent: 3/16/2020 6:02:42 PM
Subject: Re: NTP with only GPS/PPS flags PPS as falseticker

> Yo Nick!
>
> On Tue, 17 Mar 2020 00:48:52 +0000
> "Nick Burkitt" <address@hidden> wrote:
>
> >  I waited about 48 hours. I didn't save the ntpmon output at that
> >  stage, but the GPS offset had grown to over 100 seconds.
>
> Ouch.  It should have grabbed one of the SHM()s long before that.
>
> Anything in the ntp logs?
>
> Maybe try to force minsane to 1?
>
> What version of NTPsec?  Have you tried chrony?  ntpd was never
> designed for intermittent or off net operation.  Try chronyd, it was
> designed with your use case in mind.
>
> RGDS
> GARY
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
> address@hidden  Tel:+1 541 382 8588
>
>             Veritas liberabit vos. -- Quid est veritas?
>     "If you can't measure it, you can't improve it." - Lord Kelvin