Re: Logical WAL sender unresponsive during decoding commit - Mailing list pgsql-hackers

From Masahiko Sawada
Subject Re: Logical WAL sender unresponsive during decoding commit
Date
Msg-id CAD21AoB3OMcRFTMxottZYvGfc223ZqXgB-eMvD3Yosgaa2=R+Q@mail.gmail.com
Whole thread Raw
In response to Re: Logical WAL sender unresponsive during decoding commit  (Amit Kapila <amit.kapila16@gmail.com>)
Responses Re: Logical WAL sender unresponsive during decoding commit
Re: Logical WAL sender unresponsive during decoding commit
List pgsql-hackers
On Tue, Aug 16, 2022 at 2:08 PM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> On Tue, Aug 16, 2022 at 9:28 AM Andrey Borodin <x4mmm@yandex-team.ru> wrote:
> >
> > Hi hackers!
> >
> > Some time ago I've seen a hanging logical replication that was trying to send transaction commit after doing table
pg_repack.
> > I understand that those things do not mix well. Yet walsender was ignoring pg_terminate_backend() and I think this
worthfixing.
 
> > Can we add CHECK_FOR_INTERRUPTS(); somewhere in this backtrace?
> >
>
> I think if we want to do this in this code path then it may be it is
> better to add it in ReorderBufferProcessTXN where we are looping to
> process each change.

+1

The same issue is recently reported[1] on -bugs and I proposed the
patch that adds CHECK_FOR_INTERRUPTS() to the loop in
ReorderBufferProcessTXN(). I think it should be backpatched.

Regards,

[1] https://www.postgresql.org/message-id/CAD21AoD%2BaNfLje%2B9JOqWbTiq1GL4BOp9_f7FxLADm8rS8cDhCQ%40mail.gmail.com

-- 
Masahiko Sawada
EDB:  https://www.enterprisedb.com/



pgsql-hackers by date:

Previous
From: Andres Freund
Date:
Subject: Re: pg_upgrade test writes to source directory
Next
From: "Shinoda, Noriyoshi (PN Japan FSIP)"
Date:
Subject: [PG15 Doc] remove "tty" connect string from manual