Re: Named restore points
Simon Riggs <simon@2ndquadrant.com>
From: Simon Riggs <simon@2ndQuadrant.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Jaime Casanova <jaime@2ndquadrant.com>, Euler Taveira de Oliveira <euler@timbira.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2011-02-08T14:00:27Z
Lists: pgsql-hackers
On Tue, 2011-02-08 at 08:05 -0500, Robert Haas wrote: > On Tue, Feb 8, 2011 at 2:05 AM, Jaime Casanova <jaime@2ndquadrant.com> wrote: > >> Finally, this is a nice feature iif we have a way to know what named restore > >> points are available. DBAs need to take note of this list (that is not good) > >> and the lazy ones will have a hard time to recover the right name (possibly > >> with a xlog dump tool). > >> > >> So how could we store this information? Perhaps a file in > >> $PGDATA/pg_xlog/restore_label that contains the label (and possibly the WAL > >> location). Also it must have a way to transmit the restore_label when we add > >> another restore point. I didn't implement this part (Jaime?) and it seems as > >> important as the new xlog record type that is in the patch. It seems > >> complicate but I don't have ideas. Anyone? The restore point names could be > >> obtained by querying a function (say, pg_restore_point_names or > >> pg_restore_point_list). > >> > > > > i still think this should be a separate tool or a dba written list, > > I agree. Keeping track of where you've set named restore points is > not going to be a problem with a simple solution. Which restore > points are available is going to depend on which base backup you > restored and what WAL files you stuffed into pg_xlog. Yeah agreed. No need for restore_label -- Simon Riggs http://www.2ndQuadrant.com/books/ PostgreSQL Development, 24x7 Support, Training and Services