Hello, im Ananias Filho from Brazil. I have more than 15 year with Linux System Administration. More of my jobs as professional im Brazilian companies was used Java Application Servers as Tomcat, JBoss, Glassfish and Jetty. My specialization is Security and Tunning servers.
In first review from your project, i think it maybe a problem with your jdbc driver or just setup.
I can solve problem and do all load testing before take it done.
Provide 30 days support for adjustment in this problem if you found any problem.
If you have any questions, please, feel free to contact me!
thank you for the opportunity!