13480253104 mapreduce.KpiWritable@486a58c4
13502468823 mapreduce.KpiWritable@3de9d100
13560439658 mapreduce.KpiWritable@419876c1
13600217502 mapreduce.KpiWritable@9c9a8c
13602846565 mapreduce.KpiWritable@29665da4
13660577991 mapreduce.KpiWritable@7f8dcf37
13719199419 mapreduce.KpiWritable@371f654d
13726230503 mapreduce.KpiWritable@6e33be80
13760778710 mapreduce.KpiWritable@71ffe06
13823070001 mapreduce.KpiWritable@455e3f91
13826544101 mapreduce.KpiWritable@2e9f6c2b
13922314466 mapreduce.KpiWritable@647692f6
13925057413 mapreduce.KpiWritable@5a06e8f1
13926251106 mapreduce.KpiWritable@7ba75463
13926435656 mapreduce.KpiWritable@26956f01
15013685858 mapreduce.KpiWritable@1caabe71
15920133257 mapreduce.KpiWritable@dbcfb6b
15989002119 mapreduce.KpiWritable@721e34d8
18211575961 mapreduce.KpiWritable@1d1f8b70
18320173382 mapreduce.KpiWritable@1fb7500
84138413 mapreduce.KpiWritable@23be5404
自定义类没有覆写toString（）导致。
MapReduce自定义类输出的内容为内存地址,布布扣,bubuko.com
原文：http://www.cnblogs.com/luguoyuanf/p/3594441.html