《Hadoop The Definitive Guide》ch08 MapReduce Features

1. 计数器html 1) 内置计数器缓存 2) 用户自定义Java计数器网络 [ate: /local/nomad2/hadoop/tomwhite-hadoop-book-32dae01 ] >> hadoop jar ch08.jar MaxTemperatureWithCounters input/ncdc/all max-temp 12/07/03 19:53:21 INFO mapre

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