Re: Faking a TTY on a pipe/socketpair

On 2024-12-18, Scott Lurndal <scott@slp53.sl.home> wrote:

Jim Jackson <jj@franjam.org.uk> writes:

>
>
Their process for non-stop upgrades was a fairly standard one of old
service handing over to new and having to notify and co-operate with
systemd because systemd handles new connections. Previously I suspect
their processes handled incoming connections directly and there would
have been process-process link to do the hand over. Which one works out
easier to program and manage I'm not sure. But given they'd gone for a
solution Centos which had systemd init they had to adapt to it.

>
Modern non-stop systems route new connections at a higher level (e.g. netscaler)
for both load balancing and resiliancy.  systemd is not (thankfully)
involved in that at all.

Indeed, and for over 20 years. But, the talk did describe the adaptations
needed for running a non-stop service on top of systemd on a single box.