You are developing a combiner that takes as input Text keys ....

asked Aug 10, 2016 in CCD 410 Cloudera Certified Developer for Apache Hadoop (CCDH) by John Hayes (470 points)
retagged Aug 14, 2016 by admin

You are developing a combiner that takes as input Text keys, IntWritable values, and emits Text keys, IntWritable values. Which interface should your class implement?

A. Combiner <Text, IntWritable, Text, IntWritable>
B. Mapper <Text, IntWritable, Text, IntWritable>
C. Reducer <Text, Text, IntWritable, IntWritable>
D. Reducer <Text, IntWritable, Text, IntWritable>
E. Combiner <Text, Text, IntWritable, IntWritable>

1 Answer

answered Aug 10, 2016 by Sandra Reeds (1,040 points)

You are developing a combiner that takes as input Text keys ....

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