What is NameNode? How NameNode tackle Datanode failures in Hadoop?
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Can hadoop replace relational database?
What mode(s) can hadoop code be run in?
Explain is it possible to search for files using wildcards?
Which language is more suitable for text analytics? R or python?
What does hadoop-metrics.properties file do?
List out the some common problems faced by data analyst?
What is the role of the secondary namenode?
Which database is used in hadoop?
Explain the core methods of the reducer?
what is next step after mapper or maptask?
What is TextInputFormat in Hadoop?
What are some of the characteristics of Hadoop framework?
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