“You can have disagreement between the actual time of nodes of the network, for example, or different web pages,” she added.
#Leap one and all software#
The addition of leap seconds can cause glitches if it’s not accounted for properly in a software system, Donley said. The most recent leap second occurred in 2015. A leap second change triggered outages at Reddit in 2012 and downtime at Foursquare, LinkedIn and Yelp over the years. “That’s a big motivation to address them.” Time for a new system? “Over time this became more and more of a problem with digital networks because technology just became so much more dominant in our society and so now over the past 10 years, when they’re added, they’ve caused a lot of failures in various websites and computer systems,” said Donley. While that concern was overblown, the same issues around denominating time is what lies behind criticism of leap seconds. At that time, many computer programs denominated years using only the last two digits, meaning that 20 would look like the same year.
That‘s part of the reason people were so worried about Y2K as the year 2000 approached. “The impact of a negative leap second has never been tested on a large scale it could have a devastating effect on the software relying on timers or schedulers,” the Meta post argues.Ī leap second, whether positive or negative, that does not exist in the programming of computers can cause them to crash. Essentially, the world’s clocks would jump from 24:59:58 on the appointed day to 00:00:00 - skipping one second entirely. It would help compensate for Earth’s faster-than-expected rotation in recent years. Meta’s blog post highlighted one potential twist that could be coming in the future: The negative leap second. “I wouldn’t be sad to see leap seconds go away,” said John Graham-Cumming, chief technology officer at Cloudflare, one of the companies that has experienced disruption from the addition of leap seconds. “Every leap second is a major source of pain for people who manage hardware infrastructures,” wrote Meta engineers Oleg Obleukhov and Ahmad Byagowi. At best, Meta argues, it corrupts data and crashes websites. On Monday, Facebook’s parent, Meta, kicked its opposition to the leap second into high gear with a blog post calling to abolish the practice, with Amazon and Microsoft also joining the cause. Past additions of leap seconds have caused parts of the internet to go down for hours. Tech companies hate the practice because it can wreak havoc on precise technological systems that are much better at telling time than humans are - at least until we insert an extra second. Scientists have added an extra second 27 times since 1972 to keep atomic clocks in sync with astronomical time. government? Advocating for the end of “leap seconds” - blink-and-you’ll-miss-it adjustments to timekeeping that compensate for wobbles in the Earth’s rotation.
What unites Meta, Amazon, Microsoft and the U.S.
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