How to add/delete a Node to the existing cluster?
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How namenode handles data node failures?
How often do you need to reformat the namenode?
Clarify how ordering in hdfs is finished?
What is the difference between a hadoop database and relational database?
What is throughput in Hadoop?
List out some common problems faced by data analyst?
What are the common types of NOSQL data bases ?
What are the port numbers of job tracker?
Explain how can we check whether namenode is working or not?
What is streaming in Hadoop?
What do you understand by standalone (or local) mode?
Can you give some examples of Big Data?
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