Re: Strategy for moving a large DB to another machine with least possible down-time

From: Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
To: Andreas Joseph Krogh <andreas(at)visena(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: Strategy for moving a large DB to another machine with least possible down-time
Date: 2014-09-21 13:48:00
Message-ID: 541ED710.6060607@aklaver.com
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On 09/21/2014 05:44 AM, Andreas Joseph Krogh wrote:
> På søndag 21. september 2014 kl. 13:51:00, skrev Bill Moran
> <wmoran(at)potentialtech(dot)com <mailto:wmoran(at)potentialtech(dot)com>>:
>

>
> I see this limitation in Slyny:
> http://slony.info/documentation/2.2/limitations.html
>
> Slony-I does not automatically replicate
>
> *
>
> Changes to large objects (BLOBS)
>
> *
>
> Changes made by DDL commands
>
> *
>
> Changes to users and roles
>
> Not being able to replicate BLOBS is a show-stopper for me as we have
> lots of them.

Well I would say it depends on where you are storing the binary data, in
large objects or in a bytea column? If you are using bytea columns then
you would be okay. If it is large objects then you have a problem.

> Seems PITR is my only option?
> --
> *Andreas Joseph Krogh*

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com

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