Re: Faking a TTY on a pipe/socketpair

On 2024-12-17, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

On Mon, 16 Dec 2024 23:03:46 -0000 (UTC), Jim Jackson wrote:
>

Ok I've done specific network monitoring stuff from scratch - back in
the day, when SNMP was a new thing. But it was easier to control than
other stuff because I (and a couple of others) wrote it - we knew it -
so what's difficult? We even transitioned it from pre-SYS-V init to
SYS-V init, and I remember no difficulties.

>
Anything with this <https://www.phoronix.com/news/Facebook-systemd-2018>
level of complexity?

Of course not - what a silly question. And the interesting thing was
that their set up is SO complicated systemd is only a part of their
solutions, which is sort of obvious. I'd have been more interested in a
comparison of previous set up v. current with systemd.

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.

Anyway it was interesting thanks for the pointer.