From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Curt Sampson <cjs(at)cynic(dot)net> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: WAL replay logic (was Re: [PERFORM] Mount options for |
Date: | 2003-02-18 19:08:16 |
Message-ID: | 200302181908.h1IJ8Ge19074@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-hackers pgsql-performance |
Uh, not sure. Does it guard against corrupt WAL records?
---------------------------------------------------------------------------
Curt Sampson wrote:
> 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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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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