Re: Incremental Backup of a particular database

From: "Shoaib Mir" <shoaibmir(at)gmail(dot)com>
To: "Andy Shellam (Mailing Lists)" <andy(dot)shellam-lists(at)mailnetwork(dot)co(dot)uk>
Cc: "Yogvinder Singh" <yogvinder(at)newgen(dot)co(dot)in>, pgsql-admin(at)postgresql(dot)org
Subject: Re: Incremental Backup of a particular database
Date: 2007-01-17 15:23:06
Message-ID: bf54be870701170723i6465828eye3e171365a18b379@mail.gmail.com
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Yes, I guess that is true with 8.2 but with a few configurations for WAL
copying scripts.

Saw the following in documentation that specifies a good flow for doing it
--> http://www.postgresql.org/docs/8.2/static/warm-standby.html

---------------
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)

On 1/17/07, Andy Shellam (Mailing Lists) <
andy(dot)shellam-lists(at)mailnetwork(dot)co(dot)uk> wrote:
>
> Shoaib Mir wrote:
> > Even with ver 8.1 you can use WAL archive backups (PITR) to implement
> > an incremental backup strategy.
> Yes, true, but it's harder with 8.1 as you always have to start from a
> base backup and roll WAL logs forward - without a custom script you
> cannot "wait" for new WAL logs to arrive and apply them on top of a base
> backup.
> There is a project in PgFoundry to allow for warm-standby in the 8.0 and
> 8.1 series, however this is reportedly built-in to 8.2 now.
> >
> > -------------
> > Shoaib Mir
> > EnterpriseDB (www.enterprisedb.com <http://www.enterprisedb.com>)
> >
> > On 1/17/07, *Andy Shellam (Mailing Lists)*
> > <andy(dot)shellam-lists(at)mailnetwork(dot)co(dot)uk
> > <mailto:andy(dot)shellam-lists(at)mailnetwork(dot)co(dot)uk>> wrote:
> >
> > I believe the option for a "warm standby" (which sounds like it is
> > what
> > you need) was made available in 8.2.0.
> > You'd have to look at the manual though, I haven't had time to
> > investigate, and I'm not sure whether it's cluster-wide, or
> > database-specific.
> >
> >
> > Yogvinder Singh wrote:
> > > Hi Ppl,
> > >
> > > I have Two PostgreSQL Database Servers. The situation is like
> this:-
> > > 1) On first database server ball the operations (i.e live
> > server) will
> > > be done. This server may contain n number of databases.
> > >
> > > 2) On the second database server, i want to keep one particular
> > > database (from the first database server ) and keep it updated
> > to the
> > > latest from the First Database Server. I just want to be able to
> > take
> > > some sort of incremental backup from the first server and restore
> it
> > > to the second server.
> > >
> > > Is this situation feasible. How can i take an incremental backup
> > of a
> > > particular database out of many databases? On which version this
> is
> > > supported? IF not supported, is there any alternative way to
> handle
> > > this situatio.
> > >
> > > Regards,
> > > Yogvinder Singh,
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