[ntp:questions] Number of Stratum 1 & Stratum 2 Peers
martin.burnicki at meinberg.de
Wed Dec 17 09:47:21 UTC 2014
Phil W Lee wrote:
> Martin Burnicki <martin.burnicki at meinberg.de> considered Tue, 16 Dec
> 2014 12:48:57 +0100 the perfect time to write:
>> However, there is an important limitation: the tzdata version of the
>> leap second file is missing an expiration date, so even if a program
>> like ntpd could use this file directly it would never know if no more
>> leap second has been scheduled after the last one mentioned in this
>> file, or if the file just hasn't been updated recently enough.
> If it compared the file it has with the one available from tzdata, it
> could see if there was a difference - it's not exactly huge.
> Even better would be if a checksum or version number was available as
> well, so that could just be compared to the current one, and a new one
> only downloaded if required.
This presumes you have access to version which is known to be current,
but fails if it is not the case. See also my other reply.
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