Re: PG in container w/ pid namespace is init, process exits cause restart

On 2021-May-03, Andres Freund wrote:

> Using / for a single statically linked binary that e.g. just serves a
> bunch of hardcoded files is one thing. Putting actual data in / for
> something like postgres another.

Yeah, I just had a word with them and I had misunderstood what they were
doing. They were attempting something completely insane and pointless,
so I'm going to leave it at that.

> I think there's a few more special cases when running as init, other
> than reparenting. E.g. I think the default signal handlers are
> different, the kernel kills the process in fewer cases etc. I am not
> opposed to adding support for it, but I think it'd need a bit of care.

Ok, we can leave that as future development then.

> Given that we probably shouldn't just break things in a minor release by
> refusing to run as 1, a warning seems to be the easiest thing for now?

WFM.

--
Álvaro Herrera Valdivia, Chile
"Once again, thank you and all of the developers for your hard work on
PostgreSQL. This is by far the most pleasant management experience of
any database I've worked on." (Dan Harris)
http://archives.postgresql.org/pgsql-performance/2006-04/msg00247.php