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.
There are many distributed platforms or frameworks coming out when the cloud became hot. Do you have a suggestion on which one to choose? Have you ever tried Spark? It's said it has a better performance than Hadoop. And it supports Scala, which will make the program concise and easier with concurrency.