This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
But I wonder how the Apache Server can recognize the new clustered node automatically. For example, If I deploy the Web App on another machine, how can I add this machine join the the clustered group of machine without restart the Apache Server?