How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?
What are combiners? When should I use a combiner in my MapReduce Job?
What is SequenceFileInputFormat in Hadoop MapReduce?
Whether the output of mapper or output of partitioner written on local disk?
What are the various configuration parameters required to run a mapreduce job?
How to get the single file as the output from MapReduce Job?
Is it necessary to write a mapreduce job in java?
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
What is shuffleing in mapreduce?
What are advantages of Spark over MapReduce?
Describe what happens to a mapreduce job from submission to output?