Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
courses:mapreduce-tutorial:step-3 [2012/01/28 11:09] majlis Odstraneny soubory s priklady |
courses:mapreduce-tutorial:step-3 [2012/01/29 23:43] majlis |
||
---|---|---|---|
Line 8: | Line 8: | ||
<file perl> | <file perl> | ||
- | # | ||
- | |||
package Mapper; | package Mapper; | ||
use Moose; | use Moose; | ||
Line 29: | Line 27: | ||
output_compression => 0); | output_compression => 0); | ||
- | $runner-> | + | $runner-> |
</ | </ | ||
Line 37: | Line 35: | ||
perl script.pl run input_directory output_directory | perl script.pl run input_directory output_directory | ||
All files in input_directory are processes. The output_directory must not exist. | All files in input_directory are processes. The output_directory must not exist. | ||
+ | |||
===== Exercise ===== | ===== Exercise ===== | ||
- | To check that your Hadoop environment works, try running a MR job on ''/ | + | To check that your Hadoop environment works, try running a MR job on ''/ |
wget --no-check-certificate ' | wget --no-check-certificate ' | ||
- | rm -rf step-3-output; perl step-3-exercise.pl run / | + | |
+ | # $EDITOR step-3-exercise.pl | ||
+ | | ||
+ | less step-3-out-ex/ | ||
+ | |||
+ | ==== Solution ==== | ||
+ | You can also download the solution {{: | ||
+ | wget --no-check-certificate ' | ||
+ | # NOW VIEW THE FILE | ||
+ | # $EDITOR step-3-solution.pl | ||
+ | rm -rf step-3-out-sol; | ||
+ | less step-3-out-sol/ | ||
+ | ---- | ||
+ | < | ||
+ | <table style=" | ||
+ | <tr> | ||
+ | <td style=" | ||
+ | <td style=" | ||
+ | <td style=" | ||
+ | </tr> | ||
+ | </ | ||
+ | </ |