| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Michail Nikolaev <michail(dot)nikolaev(at)gmail(dot)com> |
| Cc: | Simon Riggs <simon(dot)riggs(at)enterprisedb(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Andrey Borodin <x4mmm(at)yandex-team(dot)ru>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, Alexander Korotkov <aekorotkov(at)gmail(dot)com>, reshkekirill <reshkekirill(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Slow standby snapshot |
| Date: | 2022-11-29 21:39:04 |
| Message-ID: | 1225350.1669757944@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Michail Nikolaev <michail(dot)nikolaev(at)gmail(dot)com> writes:
> The small thing I was thinking to add in KnownAssignedXidsCompress is
> the assertion like
> Assert(MyBackendType == B_STARTUP);
Mmm ... given where the call sites are, we have got lots more problems
than this if some non-startup process reaches them. I'm not sure this
is worth the trouble, but if it is, I'd put it in the callers.
>> I'd be willing to
>> make the memory barrier change anyway, because that seems like
>> a simple change that can't hurt.
> I'm going to create a separate commit fest entry for it, ok?
Right, since I closed this one already.
regards, tom lane
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