What are different types of filesystem?
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Explain how can we change the split size if our commodity hardware has less storage space?
What is a namenode? How many instances of namenode run on a hadoop cluster?
What happens to a namenode, when job tracker is down?
What does job conf class do?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
What infrastructure do we need to process 100 TB data using Hadoop?
Can hbase run without hadoop?
What are the Basics of Hadoop?
What do slaves consist of?
What is the default replication factor?
What is IdentityMapper?
explain Metadata in Namenode?