Re: 15 pg_upgrade with -j

On 2023-05-23 13:17:24 -0500, Ron wrote:
> On 5/23/23 12:19, Peter J. Holzer wrote:
> > On 2023-05-22 21:10:48 -0500, Ron wrote:
> > > On 5/22/23 18:42, Tom Lane wrote:
> > > > It looks like the assumption was that issuing link()
^^^^^^
> > > > requests in parallel wouldn't help much but just swamp your disk
> > > > if they're all on the same filesystem.
> > > > Maybe that could use rethinking, not sure.
> > > It does need rethinking in the era of VMs and SANs. /var/lib/pgsql/15 is
> > > going to be on a different LUN from /var/lib/pgsql/9.6
> > You can't hardlink between different file systems.
>
> We'd never hardlink.

But that was what Jeff and Tom were talking about. If you are changing
the subject you should at least make it explicit.

hp

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