What is safe mode in Hadoop?
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What is the problem with small files in Apache Hadoop?
Why do we use Hadoop?
What is the difference between Apache Hadoop and RDBMS?
What is the Use of SSH in Hadoop ?
Is secondary namenode a substitute to the namenode?
What should be the ideal replication factor in Hadoop Cluster?
What do you understand from Node redundancy and is it exist in hadoop cluster?
explain Metadata in Namenode?
What is IdentityMapper?
What is partioner in hadoop? Where does it run,mapper or reducer?
Is a job split into maps?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
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