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courses:mapreduce-tutorial:step-9 [2012/01/28 15:58]
majlis Added links to previous and next chapter.
courses:mapreduce-tutorial:step-9 [2012/01/31 09:42] (current)
straka Change Perl commandline syntax.
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 The Hadoop itself uses many configuration options. The options can be set on command line using the ''​-Dname=value''​ syntax: The Hadoop itself uses many configuration options. The options can be set on command line using the ''​-Dname=value''​ syntax:
-  perl script.pl ​run [-jt cluster_master | -c cluster_size [-w sec_to_wait]] [-r number_of_reducers] [Hadoop optionsinput_path ​output_path+  perl script.pl [-jt cluster_master | -c cluster_size [-w sec_to_wait]] [-r number_of_reducers] [-Dname=value -Dname=value ...input output_path
 Mind that the order of options matters -- the ''​-jt'',​ ''​-c'',​ ''​-w''​ and ''​-r''​ must precede Hadoop options to be recognized. Mind that the order of options matters -- the ''​-jt'',​ ''​-c'',​ ''​-w''​ and ''​-r''​ must precede Hadoop options to be recognized.
  

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