Experiences with MapReduce, an Abstraction for Large-Scale Computation Jeff Dean Google, Inc. 2 Outline ⢠Overview of our computing environment ⢠MapReduce â overview, examples â implementation details â usage stats ⢠Implications for parallel program development 3 Problem: lots of data ⢠Example: 20+ billion web pages x 20KB = 400+ terabytes ⢠One computer can read 30-35 MB/sec from disk â ~four
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