One advantage of cluster is for failover. You might get performance gain when you maxed out CPU time on each of the physical servers. But if you have 95% idle time when running jmeter on single server configuration, it won't help you if you run it on 2 server cluster mode.
However, you brought up a good topic, I am also interested in the performance data on Resin cluster. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of MORAWETZ Martin Sent: Friday, May 25, 2007 10:32 AM To: General Discussion for the Resin application server Subject: [Resin-interest] Resin cluster performance drops with number of nodes Hallo, I'm evaluating the resin-cluster capabilities. My problem is that with the current setup using just one node performes much better than having two nodes running. The setup is: Two apache server as frontend, I use the mod_caucho module as load-balancer, two resin server. One Apache and one resin instance is running on one physical server. I tested the performance with Jmeter. Throughput with one resin node running is about the double of the throughput when I use both resin nodes (same load-Jmeter setup / 80 Users). I was expecting an increased throughput having 2 nodes running. Could that be a configuration issue? What are common reasons for that behavior? Any ideas? Regards Martin
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