So situation is this. nginx takes the incoming request and then passes it on to Tomcat, which is running a servlet. The servlet responses back to nginx and at the same time does logging of various request information via JMS

Now nginx definitely is capable of handling high requests.

I increased Tomcat threadpool value from 500 to 2,000 and made heapsize 4GB

JMSMaxConnections was set to 10 and JMSMaxActiveConnections was set to 5

I made them 100 and 50 respectively. After that it drastically reduced nginx active connections

But my questions is have I done justice to JMS connection values? Aren't they suppose to be more? LIke 500 or so