What is the data storage component used by Hadoop?
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What is a distributed cache in mapreduce framework?
what are the most common input formats defined in Hadoop?
What is a MapReduce Combiner?
Is reduce-only job possible in Hadoop MapReduce?
How to write a custom partitioner for a Hadoop MapReduce job?
What are combiners? When should I use a combiner in my MapReduce Job?
How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?
How does fault tolerance work in mapreduce?
How do ‘map’ and ‘reduce’ work?
What is MapReduce in Hadoop?
What MapReduce framework consists of?
Explain what is shuffling in mapreduce?
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