What is heartbeat in hdfs? Explain.
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Where sorting is done in Hadoop MapReduce Job?
What are the identity mapper and reducer in MapReduce?
Developing a MapReduce Application?
What is MapReduce in Hadoop?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
What do you mean by shuffling and sorting in MapReduce?
How can we control particular key should go in a specific reducer?
How data is spilt in Hadoop?
Is reduce-only job possible in Hadoop MapReduce?
What is a distributed cache in mapreduce framework?
How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?
Define MapReduce?
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