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--- courses:mapreduce-tutorial:step-3 [2012/01/29 15:59]
straka
+++ courses:mapreduce-tutorial:step-3 [2012/01/30 00:37]
straka Improving package names of Perl programs.
@@ Line 8: / Line 8: @@
 <file perl>
-package Mapper;
+package My::Mapper;
 use Moose;
 with 'Hadoop::Mapper';
@@ Line 18: / Line 18: @@
 }
-package Main;
+package main;
 use Hadoop::Runner;
 my $runner = Hadoop::Runner->new(
-  mapper => Mapper->new(),
+  mapper => My::Mapper->new(),
   input_format => 'TextInputFormat',
   output_format => 'TextOutputFormat',
@@ Line 41: / Line 41: @@
 To check that your Hadoop environment works, try running a MR job on ''/home/straka/wiki/cs-text-medium'', which outputs only articles with names beginning with an ''A'' (ignoring the case). You can download the template {{:courses:mapreduce-tutorial:step-3-exercise.txt|step-3-exercise.pl}}  and execute it.
   wget --no-check-certificate 'https://wiki.ufal.ms.mff.cuni.cz/_media/courses:mapreduce-tutorial:step-3-exercise.txt' -O 'step-3-exercise.pl'
+  # NOW EDIT THE FILE
+  # $EDITOR step-3-exercise.pl
   rm -rf step-3-out-ex; perl step-3-exercise.pl run /home/straka/wiki/cs-text-medium/ step-3-out-ex
-  less step-3-out-ex/part-m-*
+  less step-3-out-ex/part-*
 ==== Solution ====
 You can also download the solution {{:courses:mapreduce-tutorial:step-3-solution.txt|step-3-solution.pl}} and check the correct output.
   wget --no-check-certificate 'https://wiki.ufal.ms.mff.cuni.cz/_media/courses:mapreduce-tutorial:step-3-solution.txt' -O 'step-3-solution.pl'
+  # NOW VIEW THE FILE
+  # $EDITOR step-3-solution.pl
   rm -rf step-3-out-sol; perl step-3-solution.pl run /home/straka/wiki/cs-text-medium/ step-3-out-sol
-  less step-3-out-sol/part-m-*
+  less step-3-out-sol/part-*
 ----

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