Re: Restore postgres to specific time

From: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>
To: Kevin Grittner <kgrittn(at)mail(dot)com>
Cc: wd <wd(at)wdicc(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: Restore postgres to specific time
Date: 2012-11-27 17:40:33
Message-ID: CAMkU=1y9p4Ns8eWAKmHKT21Gchq_T_kTNeMfEQsNV1EUHGsr=g@mail.gmail.com
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On Tue, Nov 27, 2012 at 6:59 AM, Kevin Grittner <kgrittn(at)mail(dot)com> wrote:
> wd wrote:
>
>> the time is between backup start and stop.
>
> That is the problem -- until the point where pg_stop_backup() was
> run PostgreSQL can't be sure of having a consistent database. It is
> waiting from enough WAL to get it there. My practice is always to
> keep the last two base backups and all WAL from the start of the
> earlier one to current. If I want to recover to a point in time
> which was during a backup, I use the previous base backup, which is
> complete and usable.
>
> It does seem that there is an opportunity here to make it more
> clear what is happening.

It seems like the code is already there to throw an error, it is just
that hot_standby=on somehow suppresses it during this window.

Cheers,

Jeff

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