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Re: WAL "low watermark" during base backup

From: Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr>
To: Florian Pflug <fgp(at)phlo(dot)org>
Cc: Magnus Hagander <magnus(at)hagander(dot)net>, Dimitri Fontaine <dimitri(at)2ndquadrant(dot)fr>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: WAL "low watermark" during base backup
Date: 2011-09-09 13:53:45
Message-ID: m2obytstxy.fsf@2ndQuadrant.fr (view raw or flat)
Thread:
Lists: pgsql-hackers
Florian Pflug <fgp(at)phlo(dot)org> writes:
> Couldn't we send all available WAL after each single data-file instead
> of waiting for all data files to be transferred before sending WAL?

+1 (or maybe not at the file boundary but rather driven by archive
command with some internal hooking, as the backend needs some new
provisions here anyway).

Regards,
-- 
Dimitri Fontaine
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support

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