Jboss fails after receiving a lot of queries using Jmeter

Question

During Stress/Load test and after sending so many queries using JMeter to my JBoss server, the server becomes irresponsive / unreachable. I want to know if there is any mechanism that makes JBoss unstable.

Answer 1

This might be an issue with the threads, there might be some thread blocking or taking longer. On this case, you will need to get a thread dump, and verify where it's stuck/unresponsive. From the description it might a thread on JMeter that is using the resources and destabilizing JBoss. A server log could also show some issue as well.

Recommendations

1. Get the thread dumps on the moment it happens
2. Analyze it with fastthread.io or other thread analyzer, eg TDA.
3. Verify any issue on the server.log

Observation

For opening issues with JBoss 5/6/7 please update the logs and configuration files, this will make the debug easier.

-f