Re: is possible to upgrade from 9.2 to 9.4 with pg_upgrade

On Wed, May 6, 2015 at 10:26 AM, Jeff Janes <jeff.janes@gmail.com> wrote:

On Wed, May 6, 2015 at 6:16 AM, Pavel Stehule <pavel.stehule@gmail.com> wrote:

2015-05-06 15:15 GMT+02:00 Alvaro Herrera <alvherre@2ndquadrant.com>:

Pavel Stehule wrote:
> Hi
>
> I am working on preparation the migration from 9.2 to 9.4
>
> pg_upgrade fails
>
>  pg_upgrade -b /usr/lib64/pgsql/postgresql-9.2/bin -B /usr/bin/ -d
> /mnt/ebs/pgsql/data -D /mnt/ebs/pgsql/data94 -k'
> Performing Consistency Checks
> -----------------------------
> Checking cluster versions                                   ok
> The old cluster lacks some required control information:
>   latest checkpoint oldest MultiXactId
>
> ?

Uh, this is certainly supposed to work.  Maybe pg_controldata or
pg_resetxlog changed output format and pg_upgrade doesn't know how to
read it.

It is tested on fresh 9.2.10 to 9.4.1

I've done that migration many times.  Can you give the pg_config output for both installations, and the pg_controldata output for the 9.2.10?

Also, what is the full path to pg_upgrade?

Cheers,

Jeff