What is the utility of using Writable Comparable Custom Class in Map Reduce code?
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Clarify what is shuffling in map reduce?
What Are Good Use Cases For Impala As Opposed To Hive Or MapReduce?
How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?
What do you understand by compute and storage nodes?
How do reducers communicate with each other?
What is partitioning in MapReduce?
Explain the Reducer's reduce phase?
What is streaming?
How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?
Explain job scheduling through JobTracker
Explain JobConf in MapReduce.
What do you mean by data locality?
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