| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, "dilipbalaut(at)gmail(dot)com" <dilipbalaut(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Exit walsender before confirming remote flush in logical replication |
| Date: | 2023-02-07 04:49:57 |
| Message-ID: | 20230207044957.3oglpgawrqerpakt@awork3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2023-02-07 09:00:13 +0530, Amit Kapila wrote:
> On Tue, Feb 7, 2023 at 2:04 AM Andres Freund <andres(at)anarazel(dot)de> wrote:
> > How about we make it an option in START_REPLICATION? Delayed logical rep can
> > toggle that on by default.
> Works for me. So, when this option is set in START_REPLICATION
> message, walsender will set some flag and allow itself to exit at
> shutdown without waiting for WAL to be sent?
Yes. I think that might be useful in other situations as well, but we don't
need to make those configurable initially. But I imagine it'd be useful to set
things up so that non-HA physical replicas don't delay shutdown, particularly
if they're geographically far away.
Greetings,
Andres Freund
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