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Re: Exit walsender before confirming remote flush in logical replication

Greg Sabino Mullane <htamfids@gmail.com>

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From: Greg Sabino Mullane <htamfids@gmail.com>
To: Andrey Silitskiy <a.silitskiy@postgrespro.ru>
Cc: Japin Li <japinli@hotmail.com>, Ronan Dunklau <ronan@dunklau.fr>, Vitaly Davydov <v.davydov@postgrespro.ru>, "Hayato Kuroda (Fujitsu)" <kuroda.hayato@fujitsu.com>, "Takamichi Osumi (Fujitsu)" <osumi.takamichi@fujitsu.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>, "sawada.mshk@gmail.com" <sawada.mshk@gmail.com>, "michael@paquier.xyz" <michael@paquier.xyz>, "peter.eisentraut@enterprisedb.com" <peter.eisentraut@enterprisedb.com>, "dilipbalaut@gmail.com" <dilipbalaut@gmail.com>, "andres@anarazel.de" <andres@anarazel.de>, "amit.kapila16@gmail.com" <amit.kapila16@gmail.com>, Kyotaro Horiguchi <horikyota.ntt@gmail.com>, Peter Smith <smithpb2250@gmail.com>, Fujii Masao <masao.fujii@gmail.com>, Alexander Korotkov <aekorotkov@gmail.com>
Date: 2026-03-16T13:31:12Z
Lists: pgsql-hackers 
On Sun, Mar 15, 2026 at 4:52 PM Andrey Silitskiy <a.silitskiy@postgrespro.ru>
wrote:

> Added a case with a positive but small wal_sender_shutdown_timeout to the
> test.
>

Thanks, looks good to me

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Avoid blocking indefinitely while finishing walsender shutdown

  2. Add wal_sender_shutdown_timeout GUC to limit shutdown wait for replication

  3. pg_upgrade: Add --copy option

  4. Prevent possibility of panics during shutdown checkpoint.

  5. Support clean switchover.