Re: hot standby in Postgresql 12
| От | David G. Johnston |
|---|---|
| Тема | Re: hot standby in Postgresql 12 |
| Дата | |
| Msg-id | CAKFQuwZ8_+zpBo7sZCkN5VKSB8n0tehgZXnbrd514j8RQ6EdNA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: hot standby in Postgresql 12 (Laurenz Albe <laurenz.albe@cybertec.at>) |
| Ответы |
Re: hot standby in Postgresql 12
|
| Список | pgsql-admin |
On Tuesday, January 19, 2021, Laurenz Albe <laurenz.albe@cybertec.at> wrote:
> > cp: cannot stat '/u01/archive/000000030000000000000035': No such file or directory
> > 2021-01-18 07:31:01.043 UTC [21079]LOG: started streaming WAL from primary at 0/35000000 on timeline 3
> >
>
> And now the standby is waiting for the next wal file to be archived by the primary.
> You should probably set archive_timeout to a non-zero value since the primary doesn’t
> seem very busy (though you also still need to do at least one write, empty wal files
> don’t get rotated out and archived.)
If the standby is *streaming* WAL, it is *not* waiting for a WAL segment to be archived.
WAL is streamed to the standby right away.
I took the error from the cp command to mean that this was in fact a warm standby regardless of any claims by the poster. I’ll readily admit I am not that familiar with this stuff though.
David J.
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