| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com> |
| Cc: | Xuneng Zhou <xunengzhou(at)gmail(dot)com>, "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, Alexander Lakhin <exclusion(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: t/035_standby_logical_decoding.pl might fail on attempt to read wrong timeline |
| Date: | 2026-06-11 09:53:19 |
| Message-ID: | aiqFjzGHpnYFP-Gm@paquier.xyz |
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| Lists: | pgsql-hackers |
On Thu, Jun 11, 2026 at 10:15:01AM +0900, Michael Paquier wrote:
> The backpatch of PG16 is straight-forward and adding
> GetWALInsertionTimeLineIfSet() down there does not look like an issue.
> Not having any tests in v16 feels sad, but that's life. It does not
> prevent addressing the availability issue on this branch.
Backpatch of GetWALInsertionTimeLineIfSet() done in v16.
> I'll go take it up from here.
I have spent some time on the first part of this patch series,
focusing on the noisiest path for logical replication, and applied it
down to v17. I have been able to reproduce the problem using
Alexander's sleep trick, and let 035 run with the same trick and the
patch applied for a few hundred runs.
Note that REL_17_STABLE has currently 4 failures in the buildfarm, due
to me messing up with the existence of injection_points. I'll
probably just remove the test on this branch, 105b2cb33617 adding the
requirement on the module only in v18~.
--
Michael
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