Re: WAL replay logic (was Re: [PERFORM] Mount options for

From: Curt Sampson <cjs(at)cynic(dot)net>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: WAL replay logic (was Re: [PERFORM] Mount options for
Date: 2003-02-18 05:26:46
Message-ID: Pine.NEB.4.51.0302181426040.386@angelic-vtfw.cvpn.cynic.net
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On Tue, 18 Feb 2003, Bruce Momjian wrote:

>
> Added to TODO:
>
> * Allow WAL information to recover corrupted pg_controldata
>...
> > Using pg_control to get the checkpoint position speeds up the
> > recovery process, but to handle possible corruption of pg_control,
> > we should actually implement the reading of existing log segments
> > in reverse order -- newest to oldest -- in order to find the last
> > checkpoint. This has not been implemented, yet.

So if you do this, do you still need to store that information in
pg_control at all?

cjs
--
Curt Sampson <cjs(at)cynic(dot)net> +81 90 7737 2974 http://www.netbsd.org
Don't you know, in this new Dark Age, we're all light. --XTC

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