Tuesday, October 25, 2011

MapReduce Questions and Answers

With all the hype and buzz surrounding NoSQL, I decided to have a look at it. I quickly found that there is not one NoSQL I could learn. Rather, there are various different solutions with different purposes and trade offs. Those various solutions tend to have one thing in common: processing of data in NoSQL storage is usually done using MapReduce framework.

Search on MapReduce found various scattered blog posts, some universities courses pages and one book that seems to contain almost everything other sources did.

This post contains MapReduce questions and answers based on the book. Basically, if I would be a student, this is what I would have made as a test preparation notes. If I would be a teacher, this is what I would ask on the exam.