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courses:mapreduce-tutorial:step-23 [2012/01/30 15:37]
majlis
courses:mapreduce-tutorial:step-23 [2012/01/31 14:33]
dusek
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 ===== Output formats ===== ===== Output formats =====
-An input format is a subclass of [[http://hadoop.apache.org/common/docs/r1.0.0/api/org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html|FileOutputFormat<K,V>]], where //K// is the type of keys and //V// is the type of values it can store.+An output format is a subclass of [[http://hadoop.apache.org/common/docs/r1.0.0/api/org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html|FileOutputFormat<K,V>]], where //K// is the type of keys and //V// is the type of values it can store.
  
 Available output formats: Available output formats:
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 <td style="text-align:left; width: 33%; "></html>[[step-22|Step 22]]: Optional – Setting Eclipse.<html></td> <td style="text-align:left; width: 33%; "></html>[[step-22|Step 22]]: Optional – Setting Eclipse.<html></td>
 <td style="text-align:center; width: 33%; "></html>[[.|Overview]]<html></td> <td style="text-align:center; width: 33%; "></html>[[.|Overview]]<html></td>
-<td style="text-align:right; width: 33%; "></html>[[step-24|Step 24]]: Mappers, running Java Hadoop jobs.<html></td>+<td style="text-align:right; width: 33%; "></html>[[step-24|Step 24]]: Mappers, running Java Hadoop jobs, combiners.<html></td>
 </tr> </tr>
 </table> </table>
 </html> </html>
  

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