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From: Jim C. Nasby <[email protected]>
To: Jan Wieck <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: Christopher Kings-Lynne <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: PostgreSQL Development <[email protected]>
Subject: Re: Release cycle length
Date: Mon, 24 Nov 2003 23:08:44 -0600
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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On Fri, Nov 21, 2003 at 01:32:38PM -0500, Jan Wieck wrote:
> bootstrap mode to apply the changes, could be an idea to think of. It 
> would still require some downtime, but nobody can avoid that when 
> replacing the postgres binaries anyway, so that's not a real issue. As 
> long as it eliminates dump, initdb, reload it will be acceptable.
 
Has anyone looked at using replication as a migration method? If
replication can be setup in such a way that you can replicate from an
old version to a new version, you can use that to build the new version
of the database on a seperate machine/instance while the old version is
still live. With some sophisticated middleware, you could theoretically
migrate without any downtime.
-- 
Jim C. Nasby, Database Consultant                  [email protected]
Member: Triangle Fraternity, Sports Car Club of America
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