Re: incorrect checksum detected on "global/pg_filenode.map" when VACUUM FULL is executed

Michael,

Thank you very much.

Regards,

Tatsuki

________________________________
From: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
Sent: Monday, August 22, 2016 5:02:40 PM
To: Tatsuki Kadomoto
Cc: John R Pierce; PostgreSQL mailing lists
Subject: Re: [GENERAL] incorrect checksum detected on "global/pg_filenode.map" when VACUUM FULL is executed

On Mon, Aug 22, 2016 at 4:45 PM, Tatsuki Kadomoto
<tatsuki(dot)kadomoto(at)proceranetworks(dot)com> wrote:
> Thanks for suggestion for upgrade. I know that's the way to go, but it's not
> so easy due to circumstances on my side.

Well, I guess it depends on how much you care about your data.

> Meanwhile, could you tell me what is this "global/pg_filenode.map" for?

It is a relation map file referring a list of OID -> relfilenode. You
can look at the comments on top src/backend/utils/cache/relmapper.c
for more details.
--
Michael