Re: Migrate postgres to newer hardware

[Renato Oliveira <renato.oliveira@xxxxxxxxxxx>]



Dear all,

 

I would love to have things covered, but I have inherited this setup.

I am sure we will improve it, but I have to make the most with what I have got, I am afraid.

I am grateful for all the help so far, I really appreciate it.

 

Ps I think there should be an easier way, maybe doing as follows:

1 – Dump the database online with pg_dump, while production server is still running

2 – Restore it to the new server, while old server is still online

3 – On the old server, run a query looking for all the new transactions since the last full backup.

4 – Run a pg_dump to dump only the new transactions since last backup and restore to the new server or ‘append’ to the new server.

 

I think this should be possible to do.

 

Thank you very much for all your support and help, really appreciated.

 

Renato

 

Renato Oliveira
Systems Administrator
e-mail: renato.oliveira@xxxxxxxxxxx

 

Tel: +44 (0)1763 260811
Fax: +44 (0)1763 262410
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From: pgsql-admin-owner@xxxxxxxxxxxxxx [mailto:pgsql-admin-owner@xxxxxxxxxxxxxx] On Behalf Of Iñigo Martinez Lasala
Sent: 02 April 2010 08:41
To: Brad Nicholson
Cc: pgsql-admin
Subject: Re: [ADMIN] Migrate postgres to newer hardware

 

I would never sing a SLA for HA if I don't have system, at least, fully redundant in order to deal with these issues.
Single server, single point of failure.

-----Original Message-----
From: Brad Nicholson <bnichols@xxxxxxxxxxxxxxx>
To: Iñigo Martinez Lasala <imartinez@xxxxxxxxxxxx>
Cc: Renato Oliveira <renato.oliveira@xxxxxxxxxxx>, pgsql-admin <pgsql-admin@xxxxxxxxxxxxxx>
Subject: Re: [ADMIN] Migrate postgres to newer hardware
Date: Tue, 30 Mar 2010 10:38:02 -0400

On Tue, 2010-03-30 at 16:29 +0200, Iñigo Martinez Lasala wrote:

> Hi Renato.

> 

> I would follow the ancient method: perform a pg_dump / pg_restore

This is the easiest approach.  The problem is that a lot of people have

contractual SLA's that do not allow them to take their systems down long

enough to do a dump and restore upgrade.

 

 

 

 

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