Recommendation of a Strategy - Lick Observatory

Planes will crash! Things that leap seconds didn't, and did, cause Steve Allen UCO/Lick Observatory 1970 IAU Comm. 31 Report

1970 IAU Proceedings 1970 IAU Proceedings 1972, Terrien in Metrologia 1978 CCIR

What is a leap second like? 6502 2005 leap second Automated Identification System (AIS) 6502 2005 leap second Automated Identification System (AIS) 6502 Also, something at Google ...

2008 leap second Linux kernel deadlock 6502 Meanwhile, at Google ...

Google leap smear 6502 Google is among the few agencies on the planet

capable of defining and distributing its own global time scale. The leap smear is a lie Cloud applications are generally not real-time systems.

2012 leap second derecho occurred 1 day before leap second 6502 2012 leap second Some Linux systems without a kernel patch from March

crashed all day before the leap if they ran NTP. Heavily loaded 6502 systems were more likely to crash.

Some Linux systems running old unpatched kernels (re)experienced the 2008 deadlock bug. Large amounts of speculation and misinformation Leap second did not crash Pirate Bay Nor fark

Some Linux systems running fully patched kernels experienced the 2012 livelock bug. Qantas reservation system Amadeus and many other sites, not all reported in the media. 2012 leap second

Linux kernel livelock 6502 2012-07-31, 2012-08-31 and 2012-12-31 NTP LI (leap indicator) bits roughly 10% to 20% of servers always wrong 6502 2012-11-19 Giant Leap and 6502 NTP servers reported year as 2000 Nov 19 14:22:16.062 MST: %SYS-6-CLOCKUPDATE:

System clock has been updated from 14:22:16 MST Mon Nov 19 2012 to 14:22:16 MST Sun Nov 19 2000, configured from NTP by See threads NTP Issues Today and Possible NTP attacks? Posts reported sites having to reboot all systems.

What the computer is saying 6502 I'm sorry, Dave. I'm afraid I can't do that. I think you know what the problem is

just as well as I do. Skip Newhall Leap Second Party 6502 Masterclock TCD 26 (IRIG-B from Spectracom)

Spectracom Netclock/2 Model 8128 (WWVB) Symmetricom XLi (GPS) ESE Display 270U/9 (IRIG-B from XLi) ESE Model/85 (GPS) Symmetricom Syncserver S350 (GPS) Symmetricom Syncserver S250 (GPS)

Leap Second Party 23:59:60 6502 00:00:00 Leap Second Party

00:00:01 6502 00:00:02 2013, DevOps Reactions Say it with pictures. Describe your feelings about

your everyday sysadmin interactions. When I realized the leap second problem

Recently Viewed Presentations

  • Teaching Team Soccer -

    Teaching Team Soccer -

    Rules of soccer: When a ball goes out of bounds by one team, a player on the other team has to throw the ball back in. Both feet have to be on the ground throughout the throw in, while the...
  • Rotkppchen oder Goldlckchen 1) Es gibt ein Wolf.

    Rotkppchen oder Goldlckchen 1) Es gibt ein Wolf.

    ER/SIE. Grimmsmärchen. Freitag, den 26sten April. I will revise the verbs HABEN and SEIN. Rotkäppchen. Sie hat grüneAugen. Sie hat kurze, rote Haare. Sie hat kleineOhren. Sie hat kleine, blaueAugen. Sie hat lockige, weißeHaare. Er hat gelbeAugen. Er hat graueHaare.
  • Bruce Buckley Strategic Director Frances James Assistant Director

    Bruce Buckley Strategic Director Frances James Assistant Director

    Assistant Director Social Inclusion - Children & Family Support Frances James Senior District Manager Children with Disabilities Mary Wilton Head of SEN and Disabilities Ralph Ashton 7 x District Managers [0-11] Louis Hughes Sue Jones Rosie Kightley Jill Langley Deb...


    Consider a conductor of length L and cross-section A.If one end of the conductor is at high temperature T H and the other end at a lower temperature T c, then the heat current H, is defined as the rate...
  • The Ghana Empire -

    The Ghana Empire -

    The Ghana Empire collapsed under the onslaught of invaders from the north and west and because of economic pulls to the east and south. 11th century, city of Kumbi Saleh fell to Berber invaders from the north. In effort to...
  • Arc Lengths, Sectors, and Rotational Speeds

    Arc Lengths, Sectors, and Rotational Speeds

    Arc Lengths, Sectors, and Rotational Speeds. Dr. Shildneck. Fall, 2015. Arc Length. Recall from the definition, the formula for a radian, is the arc length divided by the radius. This formula will allow us to solve problems that involve the...
  • Monday, January 25 Day 1 1. Opener a)

    Monday, January 25 Day 1 1. Opener a)

    What do Eskimos use to prevent food from freezing? 2.8 Reasoning and Proof Angle Addition Postulate: If R is in the interior of <PQS, then m<PQR + m<RQS = m<PQS. The converse is also true. Theorems Theorem 2.6: Angles supplementary...
  • Listening - COMMClub

    Listening - COMMClub

    Listening is an active process of selecting, attending to, interpreting and remembering sounds. Selecting essentially refers to becoming aware of and choosing a given sound among many competing sounds. Attending involves consciously focusing on sounds because they are interesting, expected,...