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Re: is it possible to concatenate output files under many reducers? - Hadoop - [mail # user]
...You can control the number of reducers by calling job.setNumReduceTasks() before you launch it.  -Joey  On Thu, May 12, 2011 at 6:33 PM, Jun Young Kim  wrote: you be be  ...
   Author: Joey Echeverria, 2011-05-13, 01:57
[expand - 1 more] - Re: mapper java process not exiting - Hadoop - [mail # user]
...Hadoop 0.21.0 doesn't get much use, so I'm not sure how much help I can be.   Your logs showed that Hadoop tried to kill processes but the kill command claimed they didn't exist. The ne...
   Author: Joey Echeverria, 2011-05-13, 01:55
Re: Error while compiling the program - Hadoop - [mail # user]
...Your delcaration of the Map class needs to include the input and output types, e.g.:  public static class Map extends MapReduceBase implements Mapper { ... }  -Joey  On Mon, A...
   Author: Joey Echeverria, 2011-04-25, 10:17
Re: How do I create a sequence file on my local harddrive? - Hadoop - [mail # user]
...Did you try calling fs.setConf(configuration)? On Apr 22, 2011 9:09 PM, "W.P. McNeill"  wrote:...
   Author: Joey Echeverria, 2011-04-23, 01:53
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