Message-ID: <54DB693A.7010705@gmail.com>
Date: Wed, 11 Feb 2015 09:37:46 -0500
From: John Scalia <jayknowsunix@gmail.com>
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To: "David F. Skoll" <dfs@roaringpenguin.com>,
 pgsql-admin@postgresql.org
CC: Greg Clough <greg.clough@cwtdigital.co.uk>
Subject: Re: Streaming replication and WAL archiving
References: <20150210172139.237ffb0b@ollie.roaringpenguin.com>
	<CABZWJif7cJ1xFpQaLUifgAGhgxs3=iyKG2p3wyr4BCUs6Krwpg@mail.gmail.com>
 <20150211092743.460e6bfe@hydrogen.roaringpenguin.com>
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I've had some issues with pg_upgrade and 9.4. For my test systems, as I didn't really have the resources to diagnose what was going on, I just used a pg_dumpall to unload the 9.3.3 
instance and then just ran psql to load the output from pg_dumpall.

The more wonderful part of installing different minor versions of postgresql, is that most O/S packages put the binaries and the default data directories in slightly different 
areas, so they can co-exist, just not necessarily run at the same time without specifying different connect ports.

On 2/11/2015 9:27 AM, David F. Skoll wrote:
> On Wed, 11 Feb 2015 09:04:44 +0000
> Greg Clough <greg.clough@cwtdigital.co.uk> wrote:
>
>> Have you investigated the "Replication Slots" feature that's new in
>> 9.4. It sounds like what you want:
> Yes, it is exactly what I want... thanks!
>
> Now to plan the upgrade from 9.1 to 9.4... it's not exactly trivial.
> The database is about 400GB which is large enough to be unwieldy and it
> powers our anti-spam service... that means we can't be down for very
> long. :(  Time to re-familiarize myself with pg_upgrade...
>
> Regards,
>
> David.
>
>


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