What are the hadoop configuration files at present?
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What happen if one of the datanodes has much slower cpu?
What is JPS? Why is it used in Hadoop?
Mention how many inputsplits is made by a hadoop framework?
How to handle bad records during parsing?
Explain the usage of Context Object?
Mention what is the difference between an rdbms and hadoop?
What are the important modes of hadoop?
How often DataNode send heartbeat to NameNode in Hadoop?
What is the role of the secondary namenode?
Explain how do you overwrite replication factor?
Name the most common input formats defined in hadoop?
What is the command to change the replication factor ?
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