2.hadoop基本配置,本地模式,伪分布式搭建
# hadoop jar /soft/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar wordcount /input /output 17/05/15 09:48:38 INFO client.RMProxy: Connecting to ResourceManager at localhost/127.0.0.1:803217/05/15 09:48:39 INFO input.FileInputFormat: Total input paths to process : 5
17/05/15 09:48:40 INFO mapreduce.JobSubmitter: number of splits:5
17/05/15 09:48:40 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1494855010567_0001
17/05/15 09:48:40 INFO impl.YarnClientImpl: Submitted application application_1494855010567_0001
17/05/15 09:48:40 INFO mapreduce.Job: The url to track the job: http://hadoop-1:8088/proxy/application_1494855010567_0001/
17/05/15 09:48:40 INFO mapreduce.Job: Running job: job_1494855010567_0001
17/05/15 09:48:48 INFO mapreduce.Job: Job job_1494855010567_0001 running in uber mode : false
17/05/15 09:48:48 INFO mapreduce.Job:map 0% reduce 0%
17/05/15 09:48:59 INFO mapreduce.Job:map 20% reduce 0%
17/05/15 09:49:00 INFO mapreduce.Job:map 80% reduce 0%
17/05/15 09:49:01 INFO mapreduce.Job:map 100% reduce 0%
17/05/15 09:49:06 INFO mapreduce.Job:map 100% reduce 100%
17/05/15 09:49:06 INFO mapreduce.Job: Job job_1494855010567_0001 completed successfully
17/05/15 09:49:06 INFO mapreduce.Job: Counters: 50
File System Counters
FILE: Number of bytes read=114
FILE: Number of bytes written=711875
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=539
HDFS: Number of bytes written=31
HDFS: Number of read operations=18
HDFS: Number of large read operations=0
HDFS: Number of write operations=2
Job Counters
Killed map tasks=1
Launched map tasks=5
Launched reduce tasks=1
Data-local map tasks=5
Total time spent by all maps in occupied slots (ms)=48562
Total time spent by all reduces in occupied slots (ms)=4413
Total time spent by all map tasks (ms)=48562
Total time spent by all reduce tasks (ms)=4413
Total vcore-milliseconds taken by all map tasks=48562
Total vcore-milliseconds taken by all reduce tasks=4413
Total megabyte-milliseconds taken by all map tasks=49727488
Total megabyte-milliseconds taken by all reduce tasks=4518912
Map-Reduce Framework
Map input records=5
Map output records=9
Map output bytes=90
Map output materialized bytes=138
Input split bytes=485
Combine input records=9
Combine output records=9
Reduce input groups=4
Reduce shuffle bytes=138
Reduce input records=9
Reduce output records=4
Spilled Records=18
Shuffled Maps =5
Failed Shuffles=0
Merged Map outputs=5
GC time elapsed (ms)=1662
CPU time spent (ms)=2740
Physical memory (bytes) snapshot=1523605504
Virtual memory (bytes) snapshot=12609187840
Total committed heap usage (bytes)=1084227584
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=54
File Output Format Counters
Bytes Written=31
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