Re: Extending BASE_BACKUP in replication protocol: incremental backup and backup format

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Extending BASE_BACKUP in replication protocol: incremental backup and backup format
Date: 2014-01-14 13:18:15
Message-ID: 20140114131815.GC8537@awork2.anarazel.de
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

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.

Greetings,

Andres Freund

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

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Michael Paquier 2014-01-14 13:19:53 Re: Extending BASE_BACKUP in replication protocol: incremental backup and backup format
Previous Message Michael Paquier 2014-01-14 13:16:04 Re: Extending BASE_BACKUP in replication protocol: incremental backup and backup format