MapReduce Cloud Computing Question:
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Write a short note on the disadvantages of Mapreduce?

Cloud Computing - MapReduce Interview Question
Cloud Computing - MapReduce Interview Question


Some of the shortcomings of mapreduce are:
One-input two-phase data flow is rigid i.e. it does not allow for multiple step processing of records.
Being based on a procedural programming model this framework requires code for simple operations.
The map and reduce functions being opaque does not allow for optimization easily.

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Do you know the general mapreduce algorithm?What do you understand by MapReduce?