Why do we need MapReduce during Pig programming?
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Where the mapper's intermediate data will be stored?
What are ‘reduces’?
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
Is it possible to search for files using wildcards?
What are the four basic parameters of a reducer?
Is reduce-only job possible in Hadoop MapReduce?
What combiners are and when you should use a combiner in a mapreduce job?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
What are the main components of MapReduce Job?
Explain what you understand by speculative execution
Does Partitioner run in its own JVM or shares with another process?
Define MapReduce?
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