Mention what is the number of default partitioner in Hadoop?
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What is the port number for NameNode
Explain the hadoop configuration files at present?
What is the difference between Apache Hadoop and RDBMS?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
Where is the Mapper Output stored?
What is high availability in hadoop?
How the Client communicates with HDFS?
What is version-id mismatch error in hadoop?
Which data storage components are used by hadoop?
What is rack-aware replica placement policy?
What is a heartbeat in HDFS?
Which one is default InputFormat in Hadoop ?
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