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Earth Science

Leap Second Coming In June, 2012 142

Zoxed writes "IERS have just announced a leap second due at midnight, June 30th this year. Are your systems ready?" The last leap second added was at the end of 2008.
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Leap Second Coming In June, 2012

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  • I won't care (Score:4, Informative)

    by aglider ( 2435074 ) on Thursday January 05, 2012 @10:59AM (#38596094) Homepage

    I use NTP [] on my systems!
    They fix the timers, I got mine fixed. Automagically!

  • Re:I won't care (Score:5, Informative)

    by Soft ( 266615 ) on Thursday January 05, 2012 @11:17AM (#38596440)
    Not just NTP; the reference implementation. On the machines I checked last time around, those with the reference implementation handled time correctly; those with OpenNTPD just ignored the leap second and resynchronized later. I'll check again next summer, we'll see what happens.
  • OpenNTPD (Score:5, Informative)

    by klapaucjusz ( 1167407 ) on Thursday January 05, 2012 @12:47PM (#38598176) Homepage

    OpenNTPD just ignored the leap second

    OpenNTPD has clearly been written by someone who doesn't understand NTP. For example, it advertises incorrect root delay and disperson [] values, which can cause clients to fail to achieve a majority vote, or to pick the wrong peer to synchronise against. (Earlier versions were even worse, they advertised themselves as being at stratum 0, which could cause synchronisation loops; this has thankfully been fixed, but it doesn't inspire much confidence in the authors' competence.)

    I've also found OpenNTP to fail to regulate the local clock on dodgy hardware (it would oscillate wildly, with an amplitude of 3 seconds or so), in situations where the reference ntpd coped just fine.

    Folks, do yourself and everyone a favour -- run the reference NTP [], run chrony [], heck, run some SNTP client [], but please avoid OpenNTPD.

  • Re:OpenNTPD (Score:4, Informative)

    by Anonymous Coward on Thursday January 05, 2012 @02:47PM (#38600236)

    I have written most of OpenNTPD. Besides a lot of other stuff.

    And to be honest, I am sick and tired of wasting energy on each and every unfounded accusation someone posts somewhere. So I won't go into detail.

    First of, portable or native OpenNTPD (native = the one that comes with OpenBSD)? That is a drastic difference, not just because the portable is ancient (if anyone cares, please maintain the portable, I'll happily put it up. And not just promises, I got a lot of them).

    Then, looking at ntpd alone doesn't cut it. OpenNTPD uses a different approach than most (all?) others, it leaves the timekeeping to the kernel where it belongs. And we adjusted the kernel subsystem for it on OpenBSD.

    and just one thing i want to pick out of the unfounded accusations:
    "I've also found OpenNTP to fail to regulate the local clock on dodgy hardware"
    that isn't OpenNTPD failing, that is your system's adjtime(2) failing.

    And now excuse me please, I prefer to spend my free time on writing code or with my friends.

When a fellow says, "It ain't the money but the principle of the thing," it's the money. -- Kim Hubbard