What is a namenode? How many instances of namenode run on a hadoop cluster?
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How to change from su to cloudera?
If a data Node is full how it's identified?
what are the steps involved in decommissioning removing
What is safe mode in Hadoop?
What do you know about keyvaluetextinputformat?
Explain why do we need hadoop?
What is the function of NodeManager?
How does an hadoop application look like or their basic components?
What are the core components of Apache Hadoop?
Does hadoop always require digital data to process?
Which command is used for the retrieval of the status of daemons running the hadoop cluster?
What does the command mapred.job.tracker do?
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