Re: BUG #7884: pg_upgradecluster is terribly slow

On Fri, Feb 15, 2013 at 03:55:02PM -0800, John R Pierce wrote:
> On 2/15/2013 10:27 AM, Kevin Grittner wrote:
>
> You might want to try the utility which *is* supported by the
> PostgreSQL community, which is pg_upgrade. For speed, consider
> using the -k option. I've been able to upgrade a 3 TB database in
> just a few minutes with that. (Timing depends more on the number
> of database objects than their size.)
>
>
> do note this -k option only functions if the old and new cluster are on the
> same mount point, so the files can be mv'd

Actually, hard linked, not moved.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +