Hi,

In file "https://github.com/maxis42/Big-Data-Engineering-Coursera-Yandex/blob/master/1%20Big%20data%20essentials/Homeworks/Week%203/1%20Words%20Rating.ipynb"

In "mapper_rating.py", why did you print as

'print "%d\t%s" % (count, word)'?

Is it necessary that the element to be sorted to be present at the beginning.

I tried it the following way,

'print "%s\t%d" % (word, count)'

and changed the "line 6" from "reducer_rating.py" to

"word, count = line.strip().split('\t', 1)"

and changed the yarn command option to,

'-D mapreduce.partition.keycomparator.options=-k2,2nr'

It it not showing the right answer. Can you please tell me what is wrong in the options I set?

===== Testing (num. 803): STARTING =====
Testing (num. 803): test CRS803_2 failed on line '12,21,34\n'!
CRS803_2 description: Checks the length of path and absence of repetitions

===== Testing (num. 803): SUMMARY =====
Tests passed: crs803_1 crs803_3 dfs0 mrb17 res0
Tests failed: crs803_2

Duration: 86.0 sec
VCoreSeconds: 678 sec

0

Do you have any examples from this week regarding the tasks??? I'm finding it difficult. would be a great help.

Thanks

Hi @maxis42 ,

Can you please quickly look at my following submission for "Word Rating" problem (Big Data Essentials - Week 3) and let me know where it went wrong?

I am getting a wrong answer upon submission.

https://github.com/saint1729/coursera/blob/master/big-data-engineering/big-data-essentials/week-3/WordsRatingTask1_2.ipynb

Thanks,
Sai