Re: A Modest Upgrade Proposal

From: David Fetter <david(at)fetter(dot)org>
To: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
Cc: PG Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: A Modest Upgrade Proposal
Date: 2016-05-17 01:48:27
Message-ID: 20160517014827.GA1782@fetter.org
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On Mon, May 16, 2016 at 06:20:34PM -0700, Joshua D. Drake wrote:
> On 05/16/2016 05:52 PM, David Fetter wrote:
> > Folks,
>
> > This path would, of course, run either locally or across a
> > network, and be testable in both cases. There would be a
> > downgrade path, namely switching origin nodes.
> >
> > What say?
>
> What happens when the database is 5TB in size and you only have
> 500GB available but that 500GB won't exhaust before the 18 month
> lease expiry?

We cannot prepare for every eventuality.

The downside risk of a binary upgrade in the type of case you describe
is in no conceivable instance better than "rent or borrow another
server with more storage attached and replicate to it."

Cheers,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype: davidfetter XMPP: david(dot)fetter(at)gmail(dot)com

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