What is a "reducer" in Hadoop?
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What is the relationship between Job and Task in Hadoop?
What is the default input type in MapReduce?
Does Partitioner run in its own JVM or shares with another process?
How much space will the split occupy in Mapreduce?
What is the difference between HDFS block and input split?
Which are the methods in the mapper interface?
Is reduce-only job possible in Hadoop MapReduce?
what are the basic parameters of a Mapper?
What are the fundamental configurations parameters specified in map reduce?
What are the four basic parameters of a reducer?
What do sorting and shuffling do?
Why is Apache Spark faster than Hadoop MapReduce?
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