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Hadoop · Q42

MapReduce Programming Model

Programming · Hadoop · question 42

Q42

Point out the wrong statement.

A.
Hadoop has a library package called Aggregate
B.
Aggregate allows you to define a mapper plugin class that is expected to generate "aggregatable items" for each input key/value pair of the mappers
C.
To use Aggregate, simply specify "-mapper aggregate"
Answer
D.
None of the mentioned

Answer: Option C

Solution

Answer: Option C
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