Re: Remove Deprecated Exclusive Backup Mode

Peter Eisentraut <peter.eisentraut@2ndquadrant.com>

From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>

To: Stephen Frost <sfrost@snowman.net>, Michael Paquier <michael@paquier.xyz>

Cc: Andres Freund <andres@anarazel.de>, David Steele <david@pgmasters.net>, pgsql-hackers@lists.postgresql.org

Date: 2018-11-27T14:54:39Z

Lists: pgsql-hackers

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Remove exclusive backup mode
- 39969e2a1e4d 15.0 landed

On 27/11/2018 15:45, Stephen Frost wrote:
>>> But backup scripts are not affected by the recovery.conf changes.
>> In any of my own backup scripts (yeah!), I don't have any dependency to
>> that either.  Or perhaps pgBackRest has a dependency in this area?
> If you don't consider your recovery scripts and your backup scripts to
> be related then I've really got to wonder how you're regularly testing
> your backups to make sure that they're actually valid.

The sort of installations that continue to use the exclusive backup mode
probably have the following tooling: a 20-line shell script to make the
backup and either a 10-line shell script or a similarly sized README or
wiki page to do the recovery.  Changing the latter for the recovery.conf
changes is probably a 3-line change.  Changing the former for the
removal of exclusive backups would require major changes.  (Try writing
a shell script that keeps a psql session open while it takes the backup
from the file system.  It's possible, but it requires significantly more
logic.)

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services