Horton
Menu

Re: Enabling Checksums

Jim Nasby <jim@nasby.net>

View thread
From: Jim Nasby <jim@nasby.net>
To: Jeff Davis <pgsql@j-davis.com>
Cc: Heikki Linnakangas <hlinnakangas@vmware.com>, Simon Riggs <simon@2ndQuadrant.com>, Greg Smith <greg@2ndquadrant.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2013-03-04T20:51:55Z
Lists: pgsql-hackers 
On 3/4/13 10:00 AM, Jeff Davis wrote:
> On Mon, 2013-03-04 at 10:36 +0200, Heikki Linnakangas wrote:
>> >On 04.03.2013 09:11, Simon Riggs wrote:
>>> > >Are there objectors?
>> >
>> >FWIW, I still think that checksumming belongs in the filesystem, not
>> >PostgreSQL.
> Doing checksums in the filesystem has some downsides.

Additionally, no filesystem I'm aware of checksums the data in the filesystem cache. A PG checksum would.

I'll also mention that this debate has been had in the past. The time to object to the concept of a checksuming feature was a long time ago, before a ton of development effort went into this... :(