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Re: Fastest DB restore options

From: "Marco Bizzarri" <marco(dot)bizzarri(at)gmail(dot)com>
To: "ogjunk-pgjedan(at)yahoo(dot)com" <ogjunk-pgjedan(at)yahoo(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: Fastest DB restore options
Date: 2007-02-22 20:47:37
Message-ID: 3f0d61c40702221247t14229abfx16ddfbe50a288e42@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-admin
On 2/22/07, ogjunk-pgjedan(at)yahoo(dot)com <ogjunk-pgjedan(at)yahoo(dot)com> wrote:
> Hello,
>
> I have a fairly large DB to dump and restore as fast as possible.  I'm moving from 8.0.3 to 8.2.3! :)
>
> I normally dump with these options:
>
>   -d MyDB --clean --inserts --column-inserts --format=P
>
> But the last time I tried that, the restore took foreeeeeeeeeeeeeever.  So I'm looking for the fastest way to import data from the old DB to the new one.  Judging from pg_dump man page the following should be the fastest dump & restore:
>
>   -d MyDB --format=c --ignore-version
>
> Is there anything else I can do to make the restore as fast as possible?
>
> Thanks,
> Otis


I'm not sure it is advisable, or it is even faster in current
implementation. In older ones, if you configure postgresql not to sync
after each write, you could end in a faster restore. Since this is a
restore, after all, if lights goes out, you can always throw all away
and start from scratch...

Regards
Marco


-- 
Marco Bizzarri
http://iliveinpisa.blogspot.com/

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