Re: [RFC] Incremental backup v2: add backup profile to base backup

On 2014-10-03 17:31:45 +0200, Marco Nenciarini wrote:
> I've updated the wiki page
> https://wiki.postgresql.org/wiki/Incremental_backup following the result
> of discussion on hackers.
> 
> Compared to first version, we switched from a timestamp+checksum based
> approach to one based on LSN.
> 
> This patch adds an option to pg_basebackup and to replication protocol
> BASE_BACKUP command to generate a backup_profile file. It is almost
> useless by itself, but it is the foundation on which we will build the
> file based incremental backup (and hopefully a block based incremental
> backup after it).
> 
> Any comment will be appreciated. In particular I'd appreciate comments
> on correctness of relnode files detection and LSN extraction code.

Can you describe the algorithm you implemented in words?

Greetings,

Andres Freund

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