What Is MapReduce?Simple Explanation of MapReduceWhen to Use MapReduceWhat MapReduce Isn’tWhy Use MapReduce?Hadoop and SparkWhat Is in This Book?What Is the Focus of This Book?Who Is This Book For?Online ResourcesWhat Software Is Used in This Book?Conventions Used in This BookUsing Code ExamplesSafari® Books OnlineHow to Contact UsAcknowledgmentsComments and Questions for This Book Solutions to th