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Use Commodity Hardware• “Cheap” Commodity Server Hardware– No need for super-<strong>com</strong>puters, use <strong>com</strong>modity unreliablehardware– Not desktopsNOTBUT12Hadoop System Principles• Scale-Out rather than Scale-Up• Bring code to data rather than data to code• Deal with failures – they are <strong>com</strong>mon• Abstract <strong>com</strong>plexity of distributed andconcurrent applications13