| From: | Michail Nikolaev <michail(dot)nikolaev(at)gmail(dot)com> |
|---|---|
| To: | Peter Geoghegan <pg(at)bowt(dot)ie> |
| Cc: | Greg Stark <stark(at)mit(dot)edu>, Andres Freund <andres(at)anarazel(dot)de>, Julien Rouhaud <rjuju123(at)gmail(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, Antonin Houska <ah(at)cybertec(dot)at>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [PATCH] Full support for index LP_DEAD hint bits on standby |
| Date: | 2022-03-29 16:51:18 |
| Message-ID: | CANtu0oidssx49W5Vt1U1R=QCcUB7JfhCGzF9Z5FgvyLdJdweww@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
UPD:
> I was thinking it is safe to have additional hint bits
> on primary, but it seems like no.
Oh, sorry for the mistake, it is about standby of course.
> BTW I am wondering if it is possible
> to achieve the same situation by pg_rewind and standby promotion…
Looks like it is impossible, because wal_log_hints is required in
order to use pg_rewind.
It is possible to achieve a situation with some additional LP_DEAD on
standby compared to the primary, but any change on primary would cause
FPI, so LP_DEAD will be cleared.
Thanks,
Michail.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Robert Haas | 2022-03-29 17:03:32 | Re: Removing more vacuumlazy.c special cases, relfrozenxid optimizations |
| Previous Message | Stephen Frost | 2022-03-29 16:34:16 | Re: Corruption during WAL replay |