Number of User when use clustering

I have tested the openfire with tsung. The number of the user which is online will be 30000 if I run one Openfire server. So I want to test the performance of the openfire clustering. I run two servers with openfire and with Haproxy before them. But the number of the user which is online only 4000. I don’t know what is the reason. I think the number will more than 50000. Why the performace is lower than single openfire server? Does anybody know that?

Resolved. That is the error setting.

Hi mozetus, what do you mean by the above? Did you work it out and, if so, how?