hadoop@ssmaster:~$ hadoop fs -mkdir /input

hadoop@ssmaster:~$ ls

Desktop  Documents  Downloads  examples.desktop  hadoop-2.6..tar.gz  Music  paper.txt  Pictures  Public  Templates  Videos

hadoop@ssmaster:~$ hadoop fs -put paper.txt  /input

hadoop@ssmaster:~$ hadoop fs -ls /input

Found  items

-rw-r--r--    hadoop supergroup        -- : /input/paper.txt

hadoop@ssmaster:~$ hadoop jar /opt/hadoop-2.6./share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6..jar  wordcount /input /output

// :: INFO client.RMProxy: Connecting to ResourceManager at ssmaster/192.168.249.144:

// :: INFO input.FileInputFormat: Total input paths to process :

// :: INFO mapreduce.JobSubmitter: number of splits:

// :: INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1477208120905_0001

// :: INFO impl.YarnClientImpl: Submitted application application_1477208120905_0001

// :: INFO mapreduce.Job: The url to track the job: http://ssmaster:8088/proxy/application_1477208120905_0001/

// :: INFO mapreduce.Job: Running job: job_1477208120905_0001

// :: INFO mapreduce.Job: Job job_1477208120905_0001 running in uber mode : false

// :: INFO mapreduce.Job:  map % reduce %

6/10/23 00:51:38 INFO mapreduce.Job: map 0% reduce 0%
16/10/23 00:52:17 INFO mapreduce.Job: map 100% reduce 0%
16/10/23 00:52:39 INFO mapreduce.Job: map 100% reduce 100%
16/10/23 00:52:41 INFO mapreduce.Job: Job job_1477208120905_0001 completed successfully
16/10/23 00:52:41 INFO mapreduce.Job: Counters: 49
File System Counters
FILE: Number of bytes read=2061
FILE: Number of bytes written=217797
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=1863
HDFS: Number of bytes written=1425
HDFS: Number of read operations=6
HDFS: Number of large read operations=0
HDFS: Number of write operations=2
Job Counters
Launched map tasks=1
Launched reduce tasks=1
Data-local map tasks=1
Total time spent by all maps in occupied slots (ms)=35792
Total time spent by all reduces in occupied slots (ms)=18540
Total time spent by all map tasks (ms)=35792
Total time spent by all reduce tasks (ms)=18540
Total vcore-milliseconds taken by all map tasks=35792
Total vcore-milliseconds taken by all reduce tasks=18540
Total megabyte-milliseconds taken by all map tasks=36651008
Total megabyte-milliseconds taken by all reduce tasks=18984960
Map-Reduce Framework
Map input records=11
Map output records=303
Map output bytes=2969
Map output materialized bytes=2061
Input split bytes=101
Combine input records=303
Combine output records=158
Reduce input groups=158
Reduce shuffle bytes=2061
Reduce input records=158
Reduce output records=158
Spilled Records=316
Shuffled Maps =1
Failed Shuffles=0
Merged Map outputs=1
GC time elapsed (ms)=1093
CPU time spent (ms)=5550
Physical memory (bytes) snapshot=442781696
Virtual memory (bytes) snapshot=1448112128
Total committed heap usage (bytes)=276299776
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=1762
File Output Format Counters
Bytes Written=1425

Cluster Metrics

hadoop@ssmaster:~$ hadoop fs -ls /output

Found  items

-rw-r--r--    hadoop supergroup           -- : /output/_SUCCESS

-rw-r--r--    hadoop supergroup        -- : /output/part-r-

hadoop@ssmaster:~$ hadoop fs -cat  /output/part-r-

Always

Dream

There

a

all

along

always

...........

...........