What is the data storage component used by Hadoop?
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Mention when to use Map reduce mode?
What is LazyOutputFormat in MapReduce?
Explain task granularity
What is identity mapper and identity reducer?
When is the reducers are started in a MapReduce job?
What happens when the node running the map task fails before the map output has been sent to the reducer?
What are the fundamental configurations parameters specified in map reduce?
Is YARN a replacement of Hadoop MapReduce?
what is a Task Tracker in Hadoop?
what is NameNode in Hadoop?
What is the function of mapreduce partitioner?
what is the Hadoop MapReduce APIs contract for a key and value class?
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