Define Writable data types in Hadoop MapReduce?
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How many InputSplits is made by a Hadoop Framework?
Does Partitioner run in its own JVM or shares with another process?
How is reporting controlled in hadoop?
How to specify more than one directory as input in the Hadoop MapReduce Program?
What is the input type/format in MapReduce by default?
Differentiate Reducer and Combiner in Hadoop MapReduce?
What platform and Java version is required to run Hadoop?
what is storage and compute nodes?
What is MapReduce in Hadoop?
Explain what is “map” and what is "reducer" in hadoop?
What is difference between an input split and hdfs block?
What is Text Input Format?
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