[ntp:questions] Change poll interval at runtime?
David J Taylor
david-taylor at blueyonder.co.uk.invalid
Sun Feb 26 07:19:44 UTC 2012
"A C" <agcarver+ntp at acarver.net> wrote in message
news:4F49CA89.9090409 at acarver.net...
> On 2/25/2012 21:55, Ron Frazier (NTP) wrote:
>> # GPS Lines
>> server 127.127.20.5 prefer minpoll 3 maxpoll 6 mode 72
>> fudge 127.127.20.5 time2 0.3100 refid GPS1
>> # Internet server lines
>> # NIST New York
>> server nist1-ny.ustiming.org minpoll 8 maxpoll 13
>> # other internet server lines similar
> I know I can do that to the config file but then it takes forever to
> synchronize. As I said, the idea was to not give a min/maxpoll so that
> ntpd would converge on a clock adjustment quickly (polling once ever 64
> seconds) and then, after a couple days, I could throttle back the
> polling interval without restarting the server and changing the
> configuration file.
"Takes forever" is the problem you should try to solve. With the systems
here, which have a GPS/PPS ref clock, they are synced within a minute of
NTP starting, although it takes longer to get the ultimate accuracy. What
version of ntp are you running, what OS, and what ref clock?
More information about the questions