Explain how can you check whether namenode is working beside using the jps command?
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What is Disk Balancer in Hadoop?
Which are the three modes in which hadoop can be run?
What is the difference between namenode and datanode in hadoop?
What are the features of Fully-Distributed mode?
Explain what is sequencefileinputformat?
What do you understand by standalone (or local) mode?
What are the main components in Hadoop Eco-System and what are their functions ?
Why do we need Hadoop?
What is the number of default partitioner in hadoop?
Mention what is the data storage component used by hadoop?
What is a commodity hardware? Does commodity hardware include RAM?
What is tasktracker in hadoop?
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