Re: Extending BASE_BACKUP in replication protocol: incremental backup and backup format - Mailing list pgsql-hackers

On 2014-01-14 14:40:46 +0100, Magnus Hagander wrote:
> On Tue, Jan 14, 2014 at 2:18 PM, Andres Freund <andres@2ndquadrant.com>wrote:
> 
> > On 2014-01-14 14:12:46 +0100, Magnus Hagander wrote:
> > > Either way - if we can do this in a safe way, it sounds like a good idea.
> > > It would be sort of like rsync, except relying on the fact that we can
> > look
> > > at the LSN and don't have to compare the actual files, right?
> >
> > Which is an advantage, yes. On the other hand, it doesn't fix problems
> > with a subtly broken replica, e.g. after a bug in replay, or disk
> > corruption.
> >
> >
> Right. But neither does rsync, right?

Hm? Rsync's really only safe with --checksum and with that it definitely
should fix those?

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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