What is reduce side join in mapreduce?
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What are the data components used by Hadoop?
What combiners are and when you should utilize a combiner in a map reduce job?
What is a TaskInstance?
List the configuration parameters that have to be specified when running a MapReduce job.
What platform and Java version is required to run Hadoop?
Can there be no Reducer?
Define speculative execution?
What is optimal size of a file for distributed cache?
Which Sorting algorithm is used in Hadoop MapReduce?
What is a "reducer" in Hadoop?
What is the function of mapreducer partitioner?
What is the Reducer used for?
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