| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Scott Whitney <swhitney(at)journyx(dot)com> |
| Cc: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: Using rsync for base backups for PITR |
| Date: | 2007-10-10 16:39:27 |
| Message-ID: | 200710101639.l9AGdRr01651@momjian.us |
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| Lists: | pgsql-admin |
Scott Whitney wrote:
> I'm reading conflicting information on this. Is this a supported technique?
>
> start_backup
> rsync the initial base backup
> stop_backup
>
> Then, periodically,
> start_backup
> rsync again
> stop_backup
>
> It's my opinion that this wouuld significantly cut down the 30GB base backup
> I'll need to take for each PITR.
Uh, well, yes, that will work, but you don't have a valid archive
_while_ the rsync is happening. I think that would be a problem if
there was a failure during the rsync update.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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