数据文件，取第三列价格 取TOPn
[root@master IMFdatatest]#hadoop dfs -cat /library/TopN1.txt DEPRECATED: Use of this script to execute hdfs command is deprecated. Instead use the hdfs command for it.
16/02/15 06:10:39 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 1,9819,100,121 2,8918,2000,111 3,2813,1234,22 4,9100,10,1101 5,3210,490,111 6,1298,28,1211 7,1010,281,90 8,1818,9000,20
[root@master IMFdatatest]#hadoop dfs -cat /library/TopN2.txt DEPRECATED: Use of this script to execute hdfs command is deprecated. Instead use the hdfs command for it.
16/02/15 06:10:47 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 10,3333,10,100 11,9321,1000,293 12,3881,701,20
