HadoopMap Reduce Map Reduce Map Reduce Part 1 Slides: 37 Download presentation 目录 遇到的问题 Hadoop与Map. Reduce编程 Map. Reduce执行 Map. Reduce实例 Part 1 Hadoop与Map. Reduce Part 2 Map. Reduce编程 Part 3 Map. Reduce执行 Map. Reduce执行 Part 3 Map. Reduce实例 Map. Reduce实例 单词统计 Word. Count – Python版 ---------------------- Ø Mapper. py 文件 Map. Reduce实例 单词统计 Word. Count – Python版 ---------------------- Ø Reducer. py 文件 Map. Reduce实例 文档倒排索引算法 ---------------------- doc 1: one fish two fish doc 2: red fish blue fish doc 3: one red bird 倒排索引: one: doc 1, doc 3 fish: doc 1, doc 2 two: doc 1 red: doc 2, doc 3 blue: doc 2 bird: doc 3 搜索: fish doc 1, doc 2 red doc 2, doc 3 red fish doc 2 Map:输入 (文档名+行号, 内容); 输出list(单词, 文档名) Reduce: 输出(单词, list(文档名)); 输出list(单词, 文档列表) Others 其他 Part whole model subtractionPart to part ratio definitionBrainpop ratiosTechnical description examplesStandard bar parts and layoutThe part of a shadow surrounding the darkest partTwo way anova minitab 17Mapreduce شرحMapreduce types and formatsMap reduce word countGoogle map reduceJava map reduceMapreduce combinerDocumentMap reduce paperMap-reduceMap reduce programMap-reduceSherpamapMapreduce simplified data processing on large clustersJava map reduceLisp map reduceGoogle map reduceOn the mapHenry 4 part 1 themesWays to reduce povertyReduce stressRefine reduce reuse recycle recovery retrieve energyWhat is the development gap in jamaica3r reduce reuse recycleReduce examples pictures3rObjectives of reduce reuse recycleRespect recycleBlender decrease polygonsNaocl reaction with alcoholWhat is uses of pulleyCognitive dissonance how to reduce