Re: BUG #17791: Assert on procarray.c

Robins Tharakan <tharakan@gmail.com>

From: Robins Tharakan <tharakan@gmail.com>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-bugs@lists.postgresql.org
Date: 2023-02-15T11:16:50Z
Lists: pgsql-bugs
Hi,

On Wed, 15 Feb 2023 at 15:36, Andres Freund <andres@anarazel.de> wrote:
>
> What range of versions / commits are you testing this workload on?
> Are you testing 11 as well? Because I don't see why we'd have the issue on 12,
> but not 11.

My bad, should have explained this upfront. The tests I run are *always* on
STABLE (or master). IIRC I had encountered an error in v10 / v11 and had
disabled testing those majors. Since currently, I am only testing v12+, this may
exist in previous major versions, just not visible in my testing.

> It might be worth trying to reproduce the issue with a much lower ulimit -S
> -n, to reach the problematic state more quickly. A reproducer would be very
> useful.... Those are indeed not very interesting - although it'd be interesting
> to know what caused the clients to go away.

I am travelling the coming few weeks, but would keep this in mind and revert
once I have something to share.

-
robins



Commits

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  1. Account explicitly for long-lived FDs that are allocated outside fd.c.