Hadoop MapReduce 获取Uv数据

须要的数据：java 192.168.33.16,hunter,2017-09-16 10:30:20,/a 192.168.33.16,jack,2017-09-16 10:30:40,/a 192.168.33.16,jack,2017-09-16 10:30:40,/a 192.168.33.16,jack,2017-09-16 10:30:40,/a 192.168.33.16,jack,

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