[imp] IMP and LVS

[Etienne Goyer]

Hi everybody,

I was wondering if somebody on the list run IMP on a cluster with LVS.
We are working on a proposal for a large mail system (expected peak user
base : 100 000) and would like include the possibilities of
load-balancing the web front-end.

For those that don't know about LVS (http://www.linuxvirtualserver.org), 
it is what we could call a "Layer 4 switch" software for Linux.  It
dispatched IP connection to a pool of server.

My big interrogation is concerning the session handling.  Since a client
is not garanteed to speak to the same server twice in the same session, 
I wonder if that could cause problem.  Prefs and session data  can be 
centalized in a MySQL database accessible by all member of the cluster, 
so there should not be any problem. However, there may some issue that I
can't foresee.    

Suggestions on other load-balancer that work well with Horde/IMP are
welcome.

Thanks !

-- 
Etienne Goyer                    Linux Québec Technologies Inc.
http://www.LinuxQuebec.com       etienne.goyer at linuxquebec.com
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