What are the features of Fully-Distributed mode?
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What is configured in /etc/hosts and what is its role in setting Hadoop cluster?
After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?
Name the operating system(s) which are supported for production hadoop deployment?
What does hadoop-metrics.properties file do?
What is the default replication factor and how will you change it?
What are the hadoop configuration files at present?
What is Slot in Hadoop v1? Why was it removed from Hadoop v2?
What is a Heartbeat in Hadoop?
What are the main components in Hadoop Eco-System and what are their functions ?
What are the limitations of Hadoop?
How Big is ‘Big Data’?
What happens if the number of reducers is 0 in Hadoop?
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