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What is identity mapper and chain mapper?
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Which one will you decide for an undertaking – Hadoop MapReduce or Apache Spark?
What are the fundamental configurations parameters specified in map reduce?
List out Hadoop's three configuration files?
How can we control particular key should go in a specific reducer?
What are advantages of Spark over MapReduce?
What are the various input and output types supported by mapreduce?
What is difference between an input split and hdfs block?
Is it possible to split 100 lines of input as a single split in MapReduce?
Clarify what is shuffling in map reduce?
What is Text Input Format?
What is the difference between HDFS block and input split?
Explain what does the conf.setmapper class do?
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