RE: [Wikipedia-l] Mirroring (was Re: Fundraising)
by Constans, Camille (C.C.)
> -----Original Message-----
> From: Andre Engels [mailto:engels@uni-koblenz.de]
> Sent: 22 September 2003 10:14
> To: wikipedia-l(a)Wikipedia.org
> Subject: Re: [Wikipedia-l] Mirroring (was Re: Fundraising)
>
>
> On Mon, 22 Sep 2003, Tim Starling wrote:
>
> > I was suggesting making a read-only mirror by mirroring the database
> > rather than just the HTML. Every time a page is updated on
> the main DB
> > server, an update would automatically be sent to the
> mirror. It's a very
> > simple method, which meets Daniel's requirements of short
> latency. The
> > idea would be that the mirror would serve web pages by
> getting articles
> > from its local copy of the database, rather than from the
> other side of
> > the world or country or whatever.
> >
> > We could even set up a full read-write server on the other
> side of the
> > world, and redirect users to a different domain name as they arrive,
> > based on their location. Users could specify their
> preferred mirror in
> > their user preferences. We could even make larousse the default for
> > logged-in users, that way most edits go to a web server
> which is close
> > to the master DB.
>
> Would it not be better to keep the mirrors read-only, and
> have them redirect
> to the master for write-access? To have writing in several
> places causes
> significant overhead in avoiding edit conflicts and such.
>
> Andre Engels
The Mysql Manual say that. We haven't really many write to need master/slaver write too. Off course, I think it's possible to set a slave as master if the master is down.