[ Skip to the content ]

Institute of Formal and Applied Linguistics Wiki

[ Back to the navigation ]

You are here: start » courses » mapreduce-tutorial » step-12

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
Last revision Both sides next revision
courses:mapreduce-tutorial:step-12 [2012/01/29 14:55]
majlis 		courses:mapreduce-tutorial:step-12 [2012/01/30 14:29]
majlis
Line 15: Line 15:
  
  
 +===== Exercise =====
 +Change the word counting script {{:courses:mapreduce-tutorial:step-5-solution1.txt|step-12-exercise.pl}} to produce results in reducers manually using the mentioned environmental variables, and execute it using four reducers.
 +
 +  wget --no-check-certificate 'https://wiki.ufal.ms.mff.cuni.cz/_media/courses:mapreduce-tutorial:step-5-solution1.txt' -O 'step-12-exercise.pl'
 +  # NOW EDIT THE FILE
 +  # $EDITOR step-12-exercise.pl
 +  rm -rf step-12-out-ex; perl step-12-exercise.pl run -c 4 -r 4 /home/straka/wiki/cs-text-medium/ step-12-out-ex
 +  less step-12-out-ex/part-*
 +
 +==== Solution ====
 +You can also download the solution {{:courses:mapreduce-tutorial:step-12-solution.txt|step-12-solution.pl}} and check the correct output.
 +  wget --no-check-certificate 'https://wiki.ufal.ms.mff.cuni.cz/_media/courses:mapreduce-tutorial:step-12-solution.txt' -O 'step-12-solution.pl'
 +  # NOW VIEW THE FILE
 +  # $EDITOR step-12-solution.pl
 +  rm -rf step-12-out-sol; perl step-12-solution.pl run -c 4 -r 4 /home/straka/wiki/cs-text-medium/ step-12-out-sol
 +  less step-12-out-sol/vystup-*
  
 ---- ----
Line 27: Line 43:
 </table> </table>
 </html> </html>
- 

[ Back to the navigation ] [ Back to the content ]