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courses:mapreduce-tutorial [2012/01/25 15:46]
straka
courses:mapreduce-tutorial [2012/01/25 21:10]
straka
Line 27: Line 27:
   * [[.:mapreduce-tutorial:Step 8]]: Multiple mappers, reducers and partitioning.   * [[.:mapreduce-tutorial:Step 8]]: Multiple mappers, reducers and partitioning.
   * [[.:mapreduce-tutorial:Step 9]]: Hadoop properties.   * [[.:mapreduce-tutorial:Step 9]]: Hadoop properties.
-  * [[.:mapreduce-tutorial:Step 10]]: Properties of reducers, combiners+  * [[.:mapreduce-tutorial:Step 10]]: Combiners
-  * [[.:mapreduce-tutorial:Step 11]]: Initialization and cleanup of MR tasks.+  * [[.:mapreduce-tutorial:Step 11]]: Initialization and cleanup of MR tasks, performance of combiners.
   * [[.:mapreduce-tutorial:Step 12]]: Additional output from mappers and reducers.   * [[.:mapreduce-tutorial:Step 12]]: Additional output from mappers and reducers.
  

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