On Wed, Jan 6, 2021 at 6:58 PM Andres Freund <andres@anarazel.de> wrote:
>
> Hi,
>
> On 2021-01-06 18:27:48 +0100, Magnus Hagander wrote:
> > The other argument is that admins can cheaply and quickly turn off
> > checksums if they don't want them.
> >
> > The same cannot be said for turning them *on* again, that's a very
> > slow offline operation at this time.
> >
> > Turning off checksums doesn't take noticeably more time than say
> > changing the shared_buffers from the default, which is also almost
> > guaranteed to be wrong for most installations.
>
> It still requires running a binary locally on the DB server, no? Which
It does.
So does changing shared_buffers -- for example you need to run
"systemctl" if you're on systemd, or just pg_ctl if you're using
unpackaged postres.
> means it'll not be an option on most cloud providers...
I really don't see why.
They've implemented the ability to restart postgres. Surely they can
implement the ability to run a single command in between.
Or if that's too complicated, they are more than capable of passing a
parameter to initdb to change what the default is on their platform.
They already do so for other things (such as not using trust or peer
auth by default, or by actually not having a superuser setc).
--
Magnus Hagander
Me: https://www.hagander.net/
Work: https://www.redpill-linpro.com/
