Hi,
On Mon, Mar 05, 2018 at 11:09:02AM +0100, Magnus Hagander wrote:
> On Mon, Mar 5, 2018 at 10:43 AM, Michael Banck <michael.banck@credativ.de>
> wrote:
> > I still find that confusing, but maybe it's just me. I thought the one
> > in the pageheader is the "expected" checksum, and we compare the "found"
> > or "computed/calculated" (in the page itself) against it.
> >
> > I had the same conversation with an external tool author, by the way:
>
> Maybe we should just say "on disk" for the one that's on disk, would that
> break the confusion? So "calculated %X, found %X on disk"?
I found that there is a precedent in bufpage.c:
| ereport(WARNING,
| (ERRCODE_DATA_CORRUPTED,
| errmsg("page verification failed, calculated checksum %u but expected %u",
| checksum, p->pd_checksum)));
apart from the fact that it doesn't print out the hex value (which I
find strange), it sounds like a sensible message to me. But "found %X on
disk" would work as well I guess.
Michael
--
Michael Banck
Projektleiter / Senior Berater
Tel.: +49 2166 9901-171
Fax: +49 2166 9901-100
Email: michael.banck@credativ.de
credativ GmbH, HRB Mönchengladbach 12080
USt-ID-Nummer: DE204566209
Trompeterallee 108, 41189 Mönchengladbach
Geschäftsführung: Dr. Michael Meskes, Jörg Folz, Sascha Heuer
