What is the utility of using Writable Comparable Custom Class in Map Reduce code?
What is a distributed cache in mapreduce framework?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
How to overwrite an existing output file during execution of mapreduce jobs?
Mention Hadoop core components?
How to create a custom key and custom value in MapReduce Job?
List the network requirements for using Hadoop ?
What is difference between a MapReduce InputSplit and HDFS block
Mention what is the next step after mapper or maptask?
Name job control options specified by mapreduce.
Why is Apache Spark faster than Hadoop MapReduce?
In MapReduce Data Flow, when Combiner is called?
Difference between mapreduce and spark