我正在使用cloudera发行版4.5中的hadoop流作业,但它并没有超出map 0%的阶段,而且我也不确定可以检查的日志在哪里,请原谅我在hadoop中的幼稚。在
[amgen@sa-dpoc10 code]$ hadoop jar /opt/cloudera/parcels/CDH/lib/hadoop-0.20- mapreduce/contrib/streaming/hadoop-streaming-2.0.0-mr1-cdh4.5.0.jar -mapper /home/amgen/Amgen_UC1/code/mapper.py -file /home/amgen/Amgen_UC1/code/mapper.py -reducer /home/amgen/Amgen_UC1/code/reducer.py -file /home/amgen/Amgen_UC1/code/reducer.py -input /user/amgen/Amgen_UC1/input/Corpus_VoiceBase.txt -output /user/amgen/Amgen_UC1/output_t1
packageJobJar: [/home/amgen/Amgen_UC1/code/mapper.py,/home/amgen/Amgen_UC1/code/reducer.py, /tmp/hadoop-amgen/hadoop-unjar665443284079561966/] [] /tmp/streamjob722830427268220086.jar tmpDir=null
14/02/02 07:16:52 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same.
14/02/02 07:16:53 INFO mapred.FileInputFormat: Total input paths to process : 1
14/02/02 07:16:53 INFO streaming.StreamJob: getLocalDirs(): [/tmp/hadoop amgen/mapred/local]
14/02/02 07:16:53 INFO streaming.StreamJob: Running job: job_201401231022_0068
14/02/02 07:16:53 INFO streaming.StreamJob: To kill this job, run:
14/02/02 07:16:53 INFO streaming.StreamJob: UNDEF/bin/hadoop job -Dmapred.job.tracker=sa-dpoc16.zs.local:8021 -kill job_201401231022_0068
14/02/02 07:16:53 INFO streaming.StreamJob: Tracking URL: http://sa-dpoc16.zs.local:50030/jobdetails.jsp?jobid=job_201401231022_0068
14/02/02 07:16:54 INFO streaming.StreamJob: map 0% reduce 0%
如果您需要任何配置文件,请告诉我。在
您可以通过namenode UI查看namenode日志
http://yourdomain.com:50070/dfshealth.jsp
在那里您可以找到namenodelogs的超链接,它将打开日志和XML列表。通常作业日志在userlogs文件夹下
您还可以使用作业跟踪器UI跟踪作业
http://yourdomain.com:50030/jobtracker.jsp
上面的作业输出包括到job details的链接
您可以查看映射器是否出现故障,并查看映射器的stdout和stderr,以查看其中是否存在任何python异常。在
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