[Pacemaker] Assessment of the performance of a Pacemaker/Corosync active/active cluster

[Francesco Petretti]

We have a couple of VMWare virtual machines, both running the same 
Operating System (RHEL 5.4);
these guest systems run on different virtualization hosts.

Both nodes run an Apache web server, serving the pages: "I am node 1" 
and "I am node 2".

We have noticed that if a client accesses the floating IP, we get a 
transactions per second (TPS) number which is approximately 20% of the 
number that we get contacting real IPs.

The configuration of these two nodes was done as outlined in:
http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf

Which parameters should we modify to improve the performance? (if the 
performance _can _be improved...).
Can performance be improved ?

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FP a.k.a. bip
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