hadoop---wordcount命令
[zznu@master file]$ hadoop jar ~/hadoop-2.5.2/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.2.jar wordcount /inputfile output
16/04/11 22:31:02 INFO client.RMProxy: Connecting to ResourceManager at master/192.168.222.122:18040
16/04/11 22:31:03 INFO input.FileInputFormat: Total input paths to process : 2
16/04/11 22:31:03 INFO mapreduce.JobSubmitter: number of splits:2
16/04/11 22:31:03 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1460438506725_0002
16/04/11 22:31:03 INFO impl.YarnClientImpl: Submitted application application_1460438506725_0002
16/04/11 22:31:04 INFO mapreduce.Job: The url to track the job: http://master:18088/proxy/application_1460438506725_0002/
16/04/11 22:31:04 INFO mapreduce.Job: Running job: job_1460438506725_0002
16/04/11 22:31:13 INFO mapreduce.Job: Job job_1460438506725_0002 running in uber mode : false
16/04/11 22:31:13 INFO mapreduce.Job: map 0% reduce 0%
16/04/11 22:31:26 INFO mapreduce.Job: map 100% reduce 0%
16/04/11 22:31:34 INFO mapreduce.Job: map 100% reduce 100%
16/04/11 22:31:34 INFO mapreduce.Job: Job job_1460438506725_0002 completed successfully
16/04/11 22:31:34 INFO mapreduce.Job: Counters: 49
File System Counters
FILE: Number of bytes read=67
FILE: Number of bytes written=290851
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=237
HDFS: Number of bytes written=25
HDFS: Number of read operations=9
HDFS: Number of large read operations=0
HDFS: Number of write operations=2
Job Counters
Launched map tasks=2
Launched reduce tasks=1
Data-local map tasks=2
Total time spent by all maps in occupied slots (ms)=21525
Total time spent by all reduces in occupied slots (ms)=6185
Total time spent by all map tasks (ms)=21525
Total time spent by all reduce tasks (ms)=6185
Total vcore-seconds taken by all map tasks=21525
Total vcore-seconds taken by all reduce tasks=6185
Total megabyte-seconds taken by all map tasks=22041600
Total megabyte-seconds taken by all reduce tasks=6333440
Map-Reduce Framework
Map input records=2
Map output records=6
Map output bytes=61
Map output materialized bytes=73
Input split bytes=200
Combine input records=6
Combine output records=5
Reduce input groups=3
Reduce shuffle bytes=73
Reduce input records=5
Reduce output records=3
Spilled Records=10
Shuffled Maps =2
Failed Shuffles=0
Merged Map outputs=2
GC time elapsed (ms)=267
CPU time spent (ms)=2860
Physical memory (bytes) snapshot=515694592
Virtual memory (bytes) snapshot=2516971520
Total committed heap usage (bytes)=257171456
Shuffle Errors
BAD_ID=0
CONNECTION=0
IO_ERROR=0
WRONG_LENGTH=0
WRONG_MAP=0
WRONG_REDUCE=0
File Input Format Counters
Bytes Read=37
File Output Format Counters
Bytes Written=25
[zznu@master file]$ hadoop fs -ls output
Found 2 items
-rw-r--r-- 1 zznu supergroup 0 2016-04-11 22:31 output/_SUCCESS
-rw-r--r-- 1 zznu supergroup 25 2016-04-11 22:31 output/part-r-00000
[zznu@master file]$
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