What is partitioning in MapReduce?
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What is the input type/format in MapReduce by default?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
Explain slot in Hadoop Map-Reduce v1?
How many times combiner is called on a mapper node in Hadoop?
What do sorting and shuffling do?
what are the main configuration parameters that user need to specify to run Mapreduce Job ?
What is difference between an input split and hdfs block?
What is a "reducer" in Hadoop?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
What happens when the node running the map task fails before the map output has been sent to the reducer?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
Explain what is the function of mapreduce partitioner?
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