On Sat, 4 Nov 2006, Stephen Woodbridge wrote:
Is this an HA-type cluster? With all data replicated on all nodes in
a certain mode? do i understand well? is A linux HA heartbeat system
good for this kind of cluster? Your reply was very interesting for
my studies. Very Very Very thanx for your reply..
We use a bunch of components similar to Ultramonkey. check out their site or
google for "LVS" or "Linux Virtual Server" would be a good starting place.
Yes it is a HA-type cluster with a heart-beat.
Me too :) I have a modest LVS cluster using Mapserver CGI / Mapscript
extensively. Seems to work very well. The one trick is to use a LVS
scheduler that keeps clients on the same "real server". The main issue is
when mapscript generates temporary files and the client has to make
subsequent calls to the web cluster to get those temporary files. If you
use a round-robin scheme and not share /tmp space, you will get missing
files.
I can't address the shared storage aspect.
HTH,
daryl
--
/**
* Daryl Herzmann, RHCE
* Program Assistant -- Iowa Environmental Mesonet
* http://mesonet.agron.iastate.edu
*/
