Re: IPC/MultixactCreation on the Standby server

> On 27 Jun 2025, at 11:41, Dmitry <dsy(dot)075(at)yandex(dot)ru> wrote:
>
> It seems that the hypothesis has not been confirmed.

Indeed.

For some reason your reproduction does not work for me.
I tried to create a test from your workload description. PFA patch with a very dirty prototype.

to run test you can run:

cd contrib/amcheck
PROVE_TESTS=t/006_MultiXact_standby.pl make check

To check that reproduction worked or not you can read tmp_check/log/006_MultiXact_standby_standby_1.log and see if there are messages "Timed out: nextMXact %u tmpMXact %u".

If you could codify our reproduction into this TAP test, we could make it portable. So I can debug the problem on my machine...

Either way we can proceed with remote debugging via mailing list :)

Thank you!

Best regards, Andrey Borodin.