To what extent would your problems be solved by having a 2nd server, a replication system (such as slony-1, but there
areothers), and some sort of load-balancer in front of it? The load-balancing could be as simple as round-robin DNS
server,perhaps...
Then when you need to do maintenance such a vacuum full, you can temporarily take 1 server out of the load-balancer (I
hope)and do maintenance, and then the other.
I don't know what that does to replication, but I would venture that replication systems should be designed to handle a
nodegoing offline.
Load balancing could also help to protect against server-overload and 1 server toppling over.
Of course, I don't know to what extent having another piece of hardware is an option, for you.
cheers,
--Tim
-----Original Message-----
From: pgsql-performance-owner@postgresql.org [mailto:pgsql-performance-owner@postgresql.org]On Behalf Of Martin Foster
Sent: Friday, November 05, 2004 3:50 AM
To: pgsql-performance@postgresql.org
Subject: Re: [PERFORM] Restricting Postgres
[...]
Now is there an administrative command in PostgreSQL that will cause it
to move into some sort of maintenance mode? For me that could be
exceedingly useful as it would still allow for an admin connection to be
made and run a VACUUM FULL and such.
Martin Foster
Creator/Designer Ethereal Realms
martin@ethereal-realms.org
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