What is the best hardware configuration to run Hadoop?
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Mention what is the use of Context Object?
How indexing is done in HDFS?
What is DistributedCache and its purpose?
What Mapper does?
Who is a 'user' in HDFS?
What are watches?
Does the hdfs client decide the input split or namenode?
Does this lead to security issues?
What do you know about keyvaluetextinputformat?
How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
What are the important differences between apache and hadoop?
Define a combiner?
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