Re: Hot standby, recovery infra

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Hot standby, recovery infra
Date: 2009-02-05 07:42:21
Message-ID: 1233819741.4500.351.camel@ebony.2ndQuadrant
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On Thu, 2009-02-05 at 09:28 +0200, Heikki Linnakangas wrote:

> >> I've changed the way minRecoveryPoint is updated now anyway, so it no
> >> longer happens every XLogFileRead().
> >
> > Care to elucidate?
>
> I got rid of minSafeStartPoint, advancing minRecoveryPoint instead. And
> it's advanced in XLogFlush instead of XLogFileRead. I'll post an updated
> patch soon.

Why do you think XLogFlush is called less frequently than XLogFileRead?

--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support

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