* 것과 내 큐션 코드와 출력 *하둡 스트리밍 간단한 매핑 실패 및 하둡 (NLTK 코드) 작업을 줄일 1.0.0
[hduser Janardhan의 하둡 @] $ 빈/하둡 항아리 contrib/streaming/hadoop-streaming-1.0.0.jar -file /home/hduser/mapper.py -mapper mapper.py -file /home/hduser/reducer.py -reducer reducer.py -input/user/hduser/input.txt를 - 출력/가정 아래/hduser/outpututttt
Warning: $HADOOP_HOME is deprecated.
packageJobJar: [/home/hduser/mapper.py, /home/hduser/reducer.py, /app/hadoop/tmp/hadoop-unjar2185859252991058106/] [] /tmp/streamjob2973484922110272968.jar tmpDir=null
12/05/03 20:36:02 INFO mapred.FileInputFormat: Total input paths to process : 1
12/05/03 20:36:03 INFO streaming.StreamJob: getLocalDirs(): [/app/hadoop/tmp/mapred/local]
12/05/03 20:36:03 INFO streaming.StreamJob: Running job: job_201205032014_0003
12/05/03 20:36:03 INFO streaming.StreamJob: To kill this job, run:
12/05/03 20:36:03 INFO streaming.StreamJob: /usr/local/hadoop/libexec/../bin/hadoop job -Dmapred.job.tracker=localhost:54311 -kill job_201205032014_0003
12/05/03 20:36:03 INFO streaming.StreamJob: Tracking URL: http://localhost.localdomain:50030/jobdetails.jsp?jobid=job_201205032014_0003
12/05/03 20:36:04 INFO streaming.StreamJob: map 0% reduce 0%
12/05/03 20:36:21 INFO streaming.StreamJob: map 100% reduce 0%
12/05/03 20:36:24 INFO streaming.StreamJob: map 0% reduce 0%
12/05/03 20:37:00 INFO streaming.StreamJob: map 100% reduce 100%
12/05/03 20:37:00 INFO streaming.StreamJob: To kill this job, run:
12/05/03 20:37:00 INFO streaming.StreamJob: /usr/local/hadoop/libexec/../bin/hadoop job -Dmapred.job.tracker=localhost:54311 -kill job_201205032014_0003
12/05/03 20:37:00 INFO streaming.StreamJob: Tracking URL: http://localhost.localdomain:50030/jobdetails.jsp?jobid=job_201205032014_0003
12/05/03 20:37:00 ERROR streaming.StreamJob: Job not successful. Error: # of failed Map Tasks exceeded allowed limit. FailedCount: 1. LastFailedTask: task_201205032014_0003_m_000000
12/05/03 20:37:00 INFO streaming.StreamJob: killJob...
Streaming Job Failed!
내가 작업 TRA에서 그것을 가지고 오류를 표시 사전에 cker
java.lang.RuntimeException: PipeMapRed.waitOutputThreads(): subprocess failed with code 1
at org.apache.hadoop.streaming.PipeMapRed.waitOutputThreads(PipeMapRed.java:311)
at org.apache.hadoop.streaming.PipeMapRed.mapRedFinished(PipeMapRed.java:545)
at org.apache.hadoop.streaming.PipeMapper.close(PipeMapper.java:132)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:57)
at org.apache.hadoop.streaming.PipeMapRunner.run(PipeMapRunner.java:36)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:436)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:372)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:416)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1083)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
덕분에
내 문제에 답하십시오, 그것은 긴급
참고 : 그것은 로컬로 작동하는 것 .. 코드는
[[email protected] ~]$ cat input.txt | ./mapper.py | sort | ./reducer.py
('be', 'VB') 1
('ceremony', 'NN') 1
('first', 'JJ') 2
('for', 'IN') 2
('hi', 'NN') 1
('place', 'NN') 1
('the', 'DT') 2
('welcome', 'VBD') 1