On Tue, Jul 3, 2012 at 1:37 AM, Mauro Santos <registo.mailling@xxxxxxxxx> wrote: > Google does run ntp on their network to keep all the machines in sync, > otherwise stuff stops working, so i guess ntp is not that evil or at > least it has its uses. http://www.h-online.com/open/news/item/Leap-second-Linux-can-freeze-1629805.html In view of the recurring leap second disruptions in its own server farms, Google took the motto "prevention is better than cure" to heart and established a "leap smear" process: using modified NTP servers, Google ensures that every NTP update on the day of the leap second inserts a few milliseconds that add up to a second by the time the leap second is actually inserted. Such minor system time differences are usually tolerated by operating systems.
