Hello Amit,
05.02.2024 15:20, Amit Kapila wrote:
> If this can be reproduced frequently then we can even try to test the
> patch in that thread by Osumi-San [1] (I haven't tested that it
> applies cleanly but shouldn't be difficult to make it work) based on
> the theory that walsender is starting up at an LSN somewhere before
> where the publication is created.
>
> [1] -
https://www.postgresql.org/message-id/TYCPR01MB83737A68CD5D554EA82BD7B9EDD39%40TYCPR01MB8373.jpnprd01.prod.outlook.com
>
Yes, with the aforementioned modification of bgwriter.c and when running
20 tests in parallel, I got failures on iterations 20. 3, 21 ..., but with the
updated Osumi-San's patch (which adds wait_for_catchup('sub1') before every
ALTER SUBSCRIPTION sub1 SET PUBLICATION ...) applied, 300 iterations ran
with no failures.
Best regards,
Alexander