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Re: WAL "low watermark" during base backup

From: Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: 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 11:40:29
Message-ID: 87ehzqaqqa.fsf@hi-media-techno.com (view raw or flat)
Thread:
Lists: pgsql-hackers
Magnus Hagander <magnus(at)hagander(dot)net> writes:
>> If you must have this then make pg_basebackup copy xlog files
>> regularly during the backup. That way your backup can take forever and
>> your primary disk won't fill up. In many cases it actually will take
>> forever, but at least we don't take down the primary.
>
> There is a patch to do something like that as well sitting on the CF
> page. I don't believe one necessarily excludes the other.

I'm not getting why we need the later one when we have this older one?

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

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