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Re: Incremental Backup of a particular database

From: "Andy Shellam (Mailing Lists)" <andy(dot)shellam-lists(at)mailnetwork(dot)co(dot)uk>
To: Shoaib Mir <shoaibmir(at)gmail(dot)com>
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 15:15:38
Message-ID: 45AE3D9A.7010908@mailnetwork.co.uk (view raw or flat)
Thread:
Lists: pgsql-admin
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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