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Mappers only job, output sorted? - MapReduce - [mail # user]
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...i have mappers only job - number of reducers set to 0. Its hadoop 0.22 and output from job is this: 2012-03-24 18:24:22,117 WARN org.apache.hadoop.util.NativeCodeLoader: Un...
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Author: Radim Kolar,
2012-03-24, 17:30
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Re: query number of mappers in 0.22 mapreduce API - MapReduce - [mail # user]
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...Please file a JIRA for adding this to JobContext. Do let this thread know the JIRA ID once you've filed it (under MAPREDUCE). MAPREDUCE-3968 ...
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Author: Radim Kolar,
2012-03-04, 19:57
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query number of mappers in 0.22 mapreduce API - MapReduce - [mail # user]
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...I switched to new mapreduce API. I need a replacement for job.getNumMapTasks()) in job driver....
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Author: Radim Kolar,
2012-03-04, 16:25
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skip rest of input in mapper/reducer - MapReduce - [mail # user]
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...Is there way to signal mapreduce framework from mapper or reducer that I am not interested in any more input data? Currently i read rest of data but ignore them....
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Author: Radim Kolar,
2012-02-04, 12:50
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Re: Writing large output kills job with timeout _ need ideas - MapReduce - [mail # user]
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...Any bright ideas? call status update or Progress every 600 seconds or less...
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Author: Radim Kolar,
2012-01-26, 15:15
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Re: MapReduce Job don't need sort. - MapReduce - [mail # user]
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...> Does any queries/jobs do not need sort phase? I can only think of aggregation. If you are talking about sorting keys before feeding them to reduce, then yes. almost none of ...
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Author: Radim Kolar,
2012-01-14, 12:29
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Partitioner in 0.22 - MapReduce - [mail # user]
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...what is replacement for old mapred.Partitioner.configure(JobConf job) method in new Hadoop mapreduce.Partitioner? I can not find how to configure partitioner during job....
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Author: Radim Kolar,
2012-01-02, 16:43
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hdfs 0.22 -> 0.20.204 - MapReduce - [mail # user]
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...I want to try hadoop 0.22. Its possible to downgrade it later without loosing HDFS content (namenode, datanodes)?...
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Author: Radim Kolar,
2011-12-22, 06:57
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Re: Any good gui tools for working with hdfs - MapReduce - [mail # user]
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...i got following errror in log when using mucommander 2011-12-21 18:53:12,565 WARN org.apache.hadoop.ipc.Server: Incorrect header or version mismatch from 88.102.**.**:11072 got v...
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Author: Radim Kolar,
2011-12-21, 17:58
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Re: Reduce tasks timeouts - MapReduce - [mail # user]
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...Dne 28.11.2011 21:34, Marcos Luis Ortiz Valmaseda napsal(a): here are logs. No errors inside. https://rapidshare.com/files/3666961563/hadoop-logs.zip...
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Author: Radim Kolar,
2011-12-02, 17:01
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