Re: REMINDER: LEAP SECOND

[Tore Anderson <tore () fud no>]

* Matthew Huff

> That won't work. Being internally sync'ed isn't good enough for
> FINRA. All the machines must be synced to an external accurate source
> at least once per trading day.

That was why I proposed to ntpdate on your (upstream-free since the
29th) NTP server(s) sometime on the 30th. That would synchronise its
local clock with an external accurate source, without learning the Leap
Indicator.

> Our plan is to disable our two stratum 1 servers, and our 3 stratum 2
> servers before the leap second turnover, but to be 100% safe we would
> need to do that 24 hours before, but that would be a violation of
> FINRA regulations.

If you run your own straum-1 servers, can't you just opt not to
configure "leapfile"? Assuming your own organisation is the only user
of those servers, that is (certainly don't do that if it's a public
server). After the leap second has passed, you can proceed to correct
things. Your clients will then be 1s ahead of correct time, and will
need to step/slew their clocks to get in sync. But maybe that's OK as
far as FINRA's concerned...

> It looks like the safest thing for us to do is to keep our NTP
> servers running and deal with any crashes/issues. That's better than
> having to deal with FINRA.

Maybe. I have no experience with FINRA. :-)

Tore