I have installed Java and Tomcat with Jenkins on a CentOS 5. Everything works fine. The issue is when I make another Jenkins installation on the same server, it causes unexpected High Loads. If I remove the other Jenkins installation the load is absolutely normal. I read somewhere that if one would like to install multiple Java applications on the same server they must configure multiple TOMCAT as well. Is this correct ? To run two simultaneous Jenkins installation, do I need 2 Tomcat servers on the same CentOS server ?