Re: Remove Deprecated Exclusive Backup Mode

From: Stephen Frost <sfrost(at)snowman(dot)net>
To: David Steele <david(at)pgmasters(dot)net>
Cc: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Remove Deprecated Exclusive Backup Mode
Date: 2018-11-27 15:57:41
Message-ID: 20181127155741.GY3415@tamriel.snowman.net
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Greetings,

* David Steele (david(at)pgmasters(dot)net) wrote:
> On 11/27/18 10:29 AM, Peter Eisentraut wrote:
> > On 27/11/2018 16:02, Stephen Frost wrote:
> >> They're also the sort of installations which don't have reliable backups
> >> and don't have any clue about the danger they are in due to the current
> >> bug/issue/whatever we have with exclusive backups.
> >>
> >> No, I don't agree that it's sensible to continue to march on as if
> >> nothing is wrong.
> >
> > It's fair to argue that this facility is broken and needs to be removed.
> > But that needs to be its own argument.

We made that argument, and had agreement on it, and that's why it's
deprecated today. The only question here is how long we keep this
deprecated and broken capability around and given that we're completely
breaking everything around recovery, now is as good a time as any since
users should be looking at how they do backup and restore when they
migrate to v12 due to these changes.

> > The argument in this subthread is that since we're already making
> > changes in an adjacent area, removing this feature will have a low impact.
>
> Fair enough, but I think the argument against exclusive backups stands
> on its own. Also, I don't see backup and restore as adjacent. I see
> them as thoroughly intertwined.

Agreed.

Thanks!

Stephen

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