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What are the Basics of Hadoop?
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What is HDFS Block size? How is it different from traditional file system block size?
How many instances of a jobtracker run on hadoop cluster?
Why do we use HDFS for applications having large data sets and not when there are lot of small files?
What Mapper does?
What are the stable versions of Hadoop?
How many JVMs run on a slave node?
How client application interacts with the NameNode?
What is salary of hadoop developer?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
how would you modify that solution to only count the number of unique words in all the documents?
Explain the hadoop-core configuration?
Explain InputFormat?
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