nanog mailing list archives
Re: leap second outage
From: Jimmy Hess <mysidia () gmail com>
Date: Wed, 1 Jul 2015 07:42:34 -0500
On Wed, Jul 1, 2015 at 12:38 AM, Mikael Abrahamsson <swmike () swm pp se> wrote:
quickly. Either we should abolish the leap second or we should make leap second adjustments (back and forth) on a monthly basis to exercise the code.
See.... maybe there should some day be building codes for commercially marketed software that provide minimum independent formal testing to be done by licensed independent testers, including leap seconds and such. ^_^ The leap second issues are possibly rare and intermittent, therefore, having a few per month is not necessarily giving adequate exposure to code paths that may go wrong during an insert/del event. There's never been a negative leap second, only insertions, but how deletions are implemented might expose new bugs, since there hasn't been one before, And you can only have one leap per 24 hours, positive or minus, pick one. & Shouldn't this kind of 'exercise' be done during the QA process before releasing new system software, rather than mucking with clock accuracy? There is a recent article with some Leap Second 'stress testing' code: https://access.redhat.com/articles/199563 Readily available test methods are available, there ought to be little legitimate excuse for anyone writing serious software that has long-running processes or threads not to include evaluation for possible leap second issues and other possible clock-related issues such as clock stepping, DST, and Year 2038 in their standard smoke tests....
-- Mikael Abrahamsson email: swmike () swm pp se
-- -JH
Current thread:
- leap second outage frnkblk (Jun 30)
- Re: leap second outage Stefan (Jun 30)
- Re: leap second outage Josh Luthman (Jun 30)
- Re: leap second outage Nicholas Suan (Jun 30)
- Re: leap second outage Joe (Jun 30)
- Re: leap second outage Harlan Stenn (Jun 30)
- Re: leap second outage Jean-Francois Mezei (Jun 30)
- Re: leap second outage Mikael Abrahamsson (Jun 30)
- Re: leap second outage Harlan Stenn (Jun 30)
- Re: leap second outage Colin Johnston (Jun 30)
- Re: leap second outage Jimmy Hess (Jul 01)
- Re: leap second outage Harlan Stenn (Jul 01)
- Re: leap second outage Stefan (Jun 30)
- RE: leap second outage frnkblk (Jul 01)
- <Possible follow-ups>
- Re: leap second outage Dovid Bender (Jun 30)
- Re: leap second outage Justin Paine via NANOG (Jul 01)
- Re: leap second outage Dovid Bender (Jun 30)
- Re: leap second outage Tim Raphael (Jul 01)
- Re: leap second outage Justin Paine via NANOG (Jul 01)
- Re: leap second outage Johnny Eriksson (Jul 01)