I have a J2EE cluster:
1 Apache load balancer : mod_jk and round robin+session stickiness
Two horizontal clustered Jboss.
1 Oracle Database server
We are running load testing scripts with Apache Jmeter. The script criteria is 10 users login simultaneously do some stuff and logout.
First test case:
Bring one node down and run the scripts
Total time taken to complete the script = x secs
Second Test case:
Both node up and run script
Total time taken to complete the script = y secs
As per our assumption the total time in second test case should be considerably less than first test case.
But it is not and x ~ y
How do we find whats happening when there are two dual core machines processing the requests with round robin load balancing.
I understand if i go on increasing the users on one node till it goes under DoS and then start the second node then it will show the difference in total time.