Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Assume we capture students' webpage browsing records. We separate the records into two files: male and female, each with more than 10 billion records. The format of each record is: [student ID], [gender], [date], [time], [url], and they are not sorted. The main memory we can use is 16GB. We try to find the common urls visited by male and female students.

Please use MapReduce to solve this problem. Some important points you must clarify:

1. How to separate data?

2. What is the Map task? What's the format of <key, value> pairs?

3. What is the Reduce task? How do we get the final results?

You may earn extra credits if you can optimize your soultion. 

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