hadoop : sort 排序研究

參考：
http://blog.csdn.net/xw13106209/article/details/6881081



log 分析：

16/05/19 14:47:39 INFO mapreduce.Job: Counters: 23
File System Counters
FILE: Number of bytes read=2192404
FILE: Number of bytes written=4203064
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=4860966398
HDFS: Number of bytes written=4860283767
HDFS: Number of read operations=212
HDFS: Number of large read operations=0
HDFS: Number of write operations=80
Map-Reduce Framework
Map input records=102319
Map output records=102319
Input split bytes=848
Spilled Records=0
Failed Shuffles=0
Merged Map outputs=0
GC time elapsed (ms)=37
CPU time spent (ms)=0
Physical memory (bytes) snapshot=0
Virtual memory (bytes) snapshot=0
Total committed heap usage (bytes)=2618818560
File Input Format Counters
Bytes Read=1077457472
File Output Format Counters
Bytes Written=1077292254
Job ended: Thu May 19 14:47:39 CST 2016
The job took 19 seconds.

排序結果：