Hello all:
I am part of a software development team evaluating RDBMSs for inclusion
as a base component of a "messaging" system. I've been thrashing hard
on PostgreSQL under Solaris 8 and the GNU compiler for a few days now,
and personally, I'm impressed. Thank you, developers.
The only two major problems I face when considering the use of
PostgreSQL 7.1 as released are:
1) index efficiency appears to drop over relatively short time periods
on highly volatile tables, causing producers to eventually start pulling
away from "more efficient" consumers of data in long-term tests which
include "well-oiled" situations in the load mix.
2) vacuum analyze holds an exclusive table lock for a _significant_
period of time, particularly when vacuuming tables that have been highly
volatile.
The system we are building needs to have the ability to keep chugging
along 24/7 - without _any_ long lapses of table availability.
Is there any other way to keep this type of table "preened" and
performant without a heavyweight table lock being involved?
If not, please consider this as an item for prioritized future
development.
I thank you in advance for your replies via email or this newsgroup.
--
Jack Bates
Portland, OR, USA
http://www.floatingdoghead.net
My PGP public key: http://www.floatingdoghead.net/pubkey.txt