| From: | Greg Nancarrow <gregn4422(at)gmail(dot)com> |
|---|---|
| To: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> |
| Cc: | vignesh C <vignesh21(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, "houzj(dot)fnst(at)fujitsu(dot)com" <houzj(dot)fnst(at)fujitsu(dot)com>, "tanghy(dot)fnst(at)fujitsu(dot)com" <tanghy(dot)fnst(at)fujitsu(dot)com>, "osumi(dot)takamichi(at)fujitsu(dot)com" <osumi(dot)takamichi(at)fujitsu(dot)com>, Alexey Lesovsky <lesovsky(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Skipping logical replication transactions on subscriber side |
| Date: | 2021-12-15 04:58:29 |
| Message-ID: | CAJcOf-ecZyoKU1bjYiRTzuMqJUHiKShVvQDB1b1mxFLSoW_bxQ@mail.gmail.com |
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On Wed, Dec 15, 2021 at 1:49 PM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
>
> We don't expect such usage but yes, it could happen and seems not
> good. I thought we can acquire Share lock on pg_subscription during
> the skip but not sure it's a good idea. It would be better if we can
> find a way to allow users to specify only XID that has failed.
>
Yes, I agree that would be better.
If you didn't do that, I think you'd need to queue the XIDs to be
skipped (rather than locking).
Regards,
Greg Nancarrow
Fujitsu Australia
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