WelcometoMapReduceDesignPatterns!Thisbookwillbeuniqueinsomewaysandfamiliarinothers.Firstandforemost,thisbookisobviouslyaboutdesignpatterns,whicharetemplatesorgeneralguidestosolvingproblems.Wetookalookatotherdesignpatternsbooksthathavebeenwritteninthepastasinspiration,particularly