Re: Add pg_accept_connections_start_time() for better uptime calculation

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Michael Paquier <michael@paquier.xyz>
Cc: Laurenz Albe <laurenz.albe@cybertec.at>, Robins Tharakan <tharakan@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2025-02-17T00:53:06Z
Lists: pgsql-hackers
Michael Paquier <michael@paquier.xyz> writes:
> On Sun, Feb 16, 2025 at 11:47:46AM +0100, Laurenz Albe wrote:
>> Would it make sense to add that information to the output of
>> "pg_ctl status" as well?  Perhaps as a new option, so that default output
>> format doesn't change.

> A separate function that only returns the open-for-connection time has
> benefits on its own because its execution can be granted to separate
> users, without knowing about the full contents of postmaster.pid.
> That last part should matter for cloud vendors.  And this file only
> knows about MyStartTime.

Yeah.  Making that happen would require extending the contents of
postmaster.pid, which is likely to break assorted peoples' tooling.
I doubt that this feature clears the bar for justifying that.

			regards, tom lane