From: Silvio Brandani <silvio.brandani@tech.sdb.it>
To: Gabriele Bartolini <Gabriele.Bartolini@2ndQuadrant.it>
Cc: Iñigo Martinez Lasala <imartinez@vectorsf.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: upgrade postgres 8.1.21 to version 8.3.6
Date: Wed, 14 Jul 2010 16:44:51 +0200
Message-ID: <4C3DCD63.5040706@tech.sdb.it> (raw)
In-Reply-To: <c3e15c443c8ea72f2a036f047b2d3161@mail.xcon.it>
References: <4C3C322C.4050305@tech.sdb.it>
<1279054371.13317.130.camel@deimos>
<c3e15c443c8ea72f2a036f047b2d3161@mail.xcon.it>
Gabriele Bartolini ha scritto:
> Ciao Silvio,
>
> On Tue, 13 Jul 2010 22:52:51 +0200, Iñigo Martinez Lasala
>
>> You should script database migration process in order to make it faster.
>> Upgrading binaries is really simple. A yum upgrade should be enough.
>>
>
> Yes, faster and repeatable. Something you can launch with a script that
> does everything from scratch. As Iñigo was pointing out, you must pay a lot
> of attention in setting up a test environment which helps you:
>
> * simulate the migration process (and gives you accurate measures of
> times)
> * test the applications
>
> As Iñigo said, on a typical usage pattern, the most likely set of errors
> you will encounter are data type checks which require casting. Therefore it
> becomes crucial to:
>
> * setup the test database (preferably on a different server)
> * setup test applications that interface with the new Postgres database
>
> I assume you are using 8.3 because of RPM availability, isn't it?
> Otherwise, you should think of 8.4.
>
> Ciao,
> Gabriele
>
>
I have simulate the upgrade process in a test environment -
The casting problem in effect occurs, we will provide the required
modification at application code before proceeding with the upgrade.
thanks a lot -
Regards,
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To: pgsql-admin@postgresql.org
Cc: silvio.brandani@tech.sdb.it, Gabriele.Bartolini@2ndQuadrant.it, imartinez@vectorsf.com
Subject: Re: upgrade postgres 8.1.21 to version 8.3.6
In-Reply-To: <4C3DCD63.5040706@tech.sdb.it>
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