Re: Cold backup with rsync -- WAL files?
| От | Craig James |
|---|---|
| Тема | Re: Cold backup with rsync -- WAL files? |
| Дата | |
| Msg-id | CAFwQ8rdwE58EVB7Aki0kAdeVELerbh8_oe9GTdP=er1Ku37epg@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Cold backup with rsync -- WAL files? (Jeff Frost <jeff@pgexperts.com>) |
| Ответы |
Re: Cold backup with rsync -- WAL files?
|
| Список | pgsql-admin |
On Fri, Dec 6, 2013 at 11:34 AM, Jeff Frost <jeff@pgexperts.com> wrote:
> On Dec 6, 2013, at 11:07, Craig James <cjames@emolecules.com> wrote:
>
> After I rsync the postgres data directory, do I need the WAL files from the source (they're on a separate disk, not part of the postgres data directory)? Can/should I erase the WAL directory of the destination?
Yes, you need the WAL files.
Now I have two directly conflicting answers. You say the WAL files are needed even though the DB is shut off, and Payal Singh says I don't need the WAL files (but I don't think he cc'd the mailing list).
Why are the WAL files necessary if the DB is shut off? Why can't they just be erased?
It's a gigabyte of copying that I was hoping to avoid.
Craig
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