Re: PITR - "Rewind to snapshot" scheme
- From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
- To: "Martin Langhoff" <martin(dot)langhoff(at)gmail(dot)com>
- Cc: pgsql-general(at)postgresql(dot)org
- Subject: Re: PITR - "Rewind to snapshot" scheme
- Date: Mon, 16 Apr 2007 14:28:57 -0400
- Message-id: <9007(dot)1176748137(at)sss(dot)pgh(dot)pa(dot)us>
"Martin Langhoff" <martin(dot)langhoff(at)gmail(dot)com> writes:
> I have been following and experimenting a bit with PITR for a while,
> and I wonder whether it is practical to use the PITR hooks to roll
> back the database to a known state. The scenario is that I am
> developing a script that will be massaging data in a medium size
> database. A pg_restore of the pristine data takes ~35 minutes to
> complete, if I can take a snapshot right after pg_restore, and use it
> to later "rewind" to that point, I'll save 35 minutes every time I
> need to test it.
Seems overly complicated --- why don't you just shut down the postmaster
and take a tarball archive of the PGDATA tree? Then to revert, stop
postmaster and untar.
regards, tom lane
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