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--- courses:mapreduce-tutorial:step-8 [2012/01/28 15:36]
majlis
+++ courses:mapreduce-tutorial:step-8 [2012/01/28 15:55]
majlis Added links to previous and next chapter.
@@ Line 50: / Line 50: @@
 On the other hand, the order of values belonging to one key is undefined.
-===== Example =====
+===== Exercise =====
-Run a MR job on '/home/straka/wiki/cs-text-medium', which creates an ascending list of unique article names and at the same time an ascending list of unique words.
+Run a MR job on '/home/straka/wiki/cs-text-medium', which creates an ascending list of unique article names and at the same time an ascending list of unique words. You can download the template {{:courses:mapreduce-tutorial:step-8-exercise.txt|step-8-exercise.pl}}  and execute it.
+  wget --no-check-certificate 'https://wiki.ufal.ms.mff.cuni.cz/_media/courses:mapreduce-tutorial:step-8-exercise.txt' -O 'step-8-exercise.pl'
+  rm -rf step-8-out-ex; perl step-8-exercise.pl run /home/straka/wiki/cs-text-medium/ step-8-out-ex
+  less step-8-out-ex/part-*
+==== Solution ====
+You can also download the solution {{:courses:mapreduce-tutorial:step-8-solution.txt|step-8-solution.pl}} and check the correct output.
+  wget --no-check-certificate 'https://wiki.ufal.ms.mff.cuni.cz/_media/courses:mapreduce-tutorial:step-8-solution.txt' -O 'step-8-solution.pl'
+  rm -rf step-8-out-sol; perl step-8-solution.pl run /home/straka/wiki/cs-text-medium/ step-8-out-sol
+  less step-8-out-sol/part-*
+----
+<html>
+<table style="width:100%">
+<tr>
+<td style="text-align:left; width: 33%; "></html>[[step-7|Step 7]]: Dynamic Hadoop cluster for several computations.<html></td>
+<td style="text-align:center; width: 33%; "></html>[[.|Overview]]<html></td>
+<td style="text-align:right; width: 33%; "></html>[[step-9|Step 9]]: Hadoop properties.<html></td>
+</tr>
+</table>
+</html>

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