What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
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What is identity mapper and identity reducer?
What is a Speculative Execution in Hadoop MapReduce?
What is difference between a MapReduce InputSplit and HDFS block
With the help of two examples name the map and reduce function purpose
What is heartbeat in hdfs? Explain.
Explain the difference between a MapReduce InputSplit and HDFS block?
What are the four basic parameters of a reducer?
Clarify what is shuffling in map reduce?
What is streaming?
what daemons run on a master node and slave nodes?
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When Namenode is down what happens to job tracker?
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