Re: XLog changes for 9.3

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: Simon Riggs <simon(at)2ndquadrant(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: XLog changes for 9.3
Date: 2012-06-07 17:24:15
Message-ID: CA+TgmoYLXj6LwYXxcXYcDSVUECt8TD8yD8_Rt-yxTy_gMMXg1Q@mail.gmail.com
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On Thu, Jun 7, 2012 at 1:15 PM, Kevin Grittner
<Kevin(dot)Grittner(at)wicourts(dot)gov> wrote:
> Simon Riggs <simon(at)2ndQuadrant(dot)com> wrote:
>
>> Anything changing filenames will break every HA config anybody has
>> anywhere.
>
> It will impact our scripts related to backup and archiving, but I
> think we're talking about two or three staff days to cover it in our
> shop.
>
> We should definitely make sure that this change is conspicuously
> noted. The scariest part is that there will now be files that
> matter with names that previously didn't exist, so lack of action
> will cause failure to capture a usable backup.

But if you're just using regexp matching against pathnames, your tool
will be just fine. Do your tools actually rely on the occasional
absence of a file in what would otherwise be the usual sequence of
files?

...Robert

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