[ntp:questions] New years glitch?
stevesommarsntp at gmail.com
Tue Jan 1 12:19:31 UTC 2013
For the past 6 months a number of NTP servers have been reporting leap=01.
When 2013 began I saw a 1 second jump from NTP servers at University of
Minnesota, Apple, and a few other sites.
To my knowledge the underlying issue in ntpd has not been addressed.
On Tue, Jan 1, 2013 at 12:29 AM, David Taylor <
david-taylor at blueyonder.co.uk.invalid> wrote:
> On 01/01/2013 06:12, s.schaefer.at.acm at gmail.com wrote:
>> I'm using .ntp.pool.org with my two internet accessing NTP
>> servers. I missed the ball drop on new years because I was trying to
>> figure out why Nagios was complaining about my NTP servers dropping the two
>> internet accessing daemons and prefering each other, resulting in higher
>> and higher strata numbers. My first reaction was to restart all these
>> non-internet accessing daemons, assuming they'd reset to the two
>> internet-accessing daemons, then honor the low stratum numbers and be sane.
>> Then I noticed my two internet accessing daemons were reporting that they
>> were within milliseconds of their internet peers (multiple cnames sending
>> them to a non-overlapping set of real servers), BUT almost exactly one
>> second different from each other. I first noticed this at a little after
>> midnight, but it went away by about 00:40 - I don't have status logs to say
>> exactly when.
> My own plots show no glitch:
> Was something sending a Leap Second flag? You could check with my program
> Recent versions of NTP should ignore a single leap-second flag, earlier
> versions may set a leap second even if only one of the upstream servers is
> indicating thus.
> Happy New Year and thanks to all those who have helped me in the past!
> Web: http://www.satsignal.eu
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