| From: | "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com> |
|---|---|
| To: | 'Nathan Bossart' <nathandbossart(at)gmail(dot)com> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | RE: wake up logical workers after ALTER SUBSCRIPTION |
| Date: | 2022-11-30 04:48:03 |
| Message-ID: | TYAPR01MB58665A1D75B3921974A886F7F5159@TYAPR01MB5866.jpnprd01.prod.outlook.com |
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| Lists: | pgsql-hackers |
Dear Nathan,
> I spent some more time on the prevent-unnecessary-wakeups patch for
> logical/worker.c that I've been alluding to in this thread, and I found a
> few more places where we depend on the worker periodically waking up. This
> seems to be a common technique, so I'm beginning to wonder whether these
> changes are worthwhile. I think there's a good chance it would become a
> game of whac-a-mole.
I think at least this feature is needed for waking up workers that are slept due to the min_apply_delay.
The author supposed this patch and pinned our thread[1].
Best Regards,
Hayato Kuroda
FUJITSU LIMITED
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