What is difference between a MapReduce InputSplit and HDFS block
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What are the four basic parameters of a reducer?
How does Mappers run method works?
what are the basic parameters of a Mapper?
What is the difference between an RDBMS and Hadoop?
What are the advantages of using mapreduce with hadoop?
What is the best way to copy files between HDFS clusters?
Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?
What is the input type/format in MapReduce by default?
What are ‘maps’ and ‘reduces’?
How to create custom key and custom value in MapReduce Job?
How do Hadoop MapReduce works?
How many numbers of reducers run in Map-Reduce Job?
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