On Wed, 2008-07-09 at 12:27 -0700, Toshio Kuratomi wrote:
Mike Bonnet wrote:
> On Wed, 2008-07-09 at 11:33 -0700, Toshio Kuratomi wrote:
>> Since the plan is to move koji to db3 within the week I'd like to hold
>> off on this. The dump and reload to move to the new server should be
>> more effective than a manual vacuum.
>
> Note that you still need to analyze all the tables after a dump/reload
> to regenerate database statistics. Otherwise postgres may choose some
> less-than-optimal query plans.
>
Good point.
Also note, we're currently debating whether to move to postgres-8.3 for
koji now or later. 8.3 has a whole slew of enhancements that could make
our lives better[1]_. On the debit side we haven't tested koji with 8.3
here. However, dgilmore has been running sparc.koji.fp.o (FC6) with
pg-8.3 which is pretty similar to our environment.
If dgilmore hasn't seen any issues with Postgres 8.3, I'm all for using
that. In addition, if we do run into performance/scaling issues, I'm
sure the Postgres developers will be much more eager to assist us with
them if we're running 8.3 rather than an older version.
.. _[1]: Combing the NEWS for changes from 8.1=>8.3 I came up with
the
list here:
https://fedorahosted.org/fedora-infrastructure/ticket/547
-Toshio
_______________________________________________
Fedora-infrastructure-list mailing list
Fedora-infrastructure-list(a)redhat.com
https://www.redhat.com/mailman/listinfo/fedora-infrastructure-list