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.
.. _[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
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