This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori 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?