Hi,
On Tue, Jan 09, 2024 at 01:59:08PM +0900, Michael Paquier wrote:
> On Mon, Jan 08, 2024 at 08:00:00PM +0300, Alexander Lakhin wrote:
> > Yes, I've added (VERBOSE) and also cut down the test to catch the failure faster.
Thanks Alexander!
> > The difference between a successful and a failed run:
> > tuples: 1 removed, 15 remain, 0 are dead but not yet removable
> > [...]
> > tuples: 0 removed, 16 remain, 1 are dead but not yet removable
>
> Yep, it's clear that the horizon is not stable.
Yeap.
>
> > With FREEZE, 10 iterations with 20 tests in parallel succeeded for me
> > (while without it, I get failures on iterations 1,2).
> >
> > [1] https://www.postgresql.org/message-id/b2a1f7d0-7629-72c0-2da7-e9c4e336b010%40gmail.com
>
> Alexander, does the test gain in stability once you begin using the
> patch posted on [2], mentioned by Bertrand?
Alexander, pleae find attached v3 which is more or less a rebased version of it.
Regards,
--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com