| From: | Lamar Owen <lowen(at)pari(dot)edu> |
|---|---|
| To: | Jan Wieck <JanWieck(at)Yahoo(dot)com> |
| Cc: | Bill Moran <wmoran(at)potentialtech(dot)com>, Bjørn T Johansen <btj(at)havleik(dot)no>, "'pgsql-general(at)postgresql(dot)org'" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Moving from 7.3.4 to 7.4.x? |
| Date: | 2004-03-20 15:24:11 |
| Message-ID: | 200403201024.11175.lowen@pari.edu |
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| Thread: | |
| Lists: | pgsql-general |
On Saturday 20 March 2004 09:00 am, Jan Wieck wrote:
> The current CVS tip of Slony is not only capable of replicating master
> to slave between 7.3.x and 7.4.x. It can also switch over in a
> controlled fashion so that one slave becomes master and the master turns
> into a fully synchronized slave at the same time. The databases are
> protected against updates during the handover, so the application will
> experience a little time where none of the databases will accept write
> transactions. Read transactions succeed all the time on both databases
> without interruption.
[snip]
> I plan to make a pre-release of Slony-I within the next 3-4 weeks. This
> will not include failover and a few other features. But it will be fully
> capable of doing 2 machine DB version upgrades via replication as
> described above.
This just made my day!
--
Lamar Owen
Director of Information Technology
Pisgah Astronomical Research Institute
1 PARI Drive
Rosman, NC 28772
(828)862-5554
www.pari.edu
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