[Mediawiki-l] Multi-server distributed MediaWiki

[Domas Mituzas]

Hi!

Some of this has been implemented via ideas like mysql-cluster
> (mentioned earlier) but I gather that mediawiki itself would need to
> be modified to support that technology.


MySQL Cluster is designed to run in low-latency environment. Though local
gigabit ethernet provides quite good round trip time, specialized server
interconnects (like dolphin one) help even more. Geo-balancing on cluster is
pain (unless you have really good interconnect, sub-10ms). And you may want
to run one of late 5.1 snapshots.. ;-)

Load-balancing a webserver is already something that's fairly well known.


We do lots of database load balancing, with replication. It still has single
master for write requests, though.


> intelligently balance the load over to those mirrors which have
> bandwidth left.


Just run a caching proxy.. ;) It is probably possible to implement that as
PHP script too, though it would suck.

This is a complex issue.. and probably not worth the spare change
> which basic hosting would cost.  If the site is wildly popular.. then
> become self-supporting via memberships, ads, donations, etc..


Dedicated servers nowadays are at 50eur/month range. With unlimited traffic
\o/

-- Domas
http://dammit.lt/