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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "HadoopMapReduce" by LarsFrancke
Date Mon, 09 Nov 2009 02:37:37 GMT
Dear Wiki user,

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The "HadoopMapReduce" page has been changed by LarsFrancke.
The comment on this change is: linkfix - for real this time....
http://wiki.apache.org/hadoop/HadoopMapReduce?action=diff&rev1=26&rev2=27

--------------------------------------------------

  that it will be written to the output specified by the
  [[http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/mapreduce/Partitioner.html|Partitioner]].
The default [[http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/mapreduce/lib/partition/HashPartitioner.html|HashPartitioner]]
uses the
  hashcode function on the key's class (which means that this hashcode function must be good
in order to achieve an even workload across the reduce tasks).
- See [[http://svn.apache.org/viewvc/hadoop/mapreduce/trunk/src/java/org/apache/hadoop/mapred/package.html?view=markup|MapTask]]
for details.
+ See [[http://svn.apache.org/viewvc/hadoop/mapreduce/trunk/src/java/org/apache/hadoop/mapred/MapTask.java?view=markup|MapTask]]
for details.
  
  ''N'' input files will generate ''M'' map tasks to be run and each map
  task will generate as many output files as there are reduce

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