Explain why do we need hadoop?
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How to use Apache Zookeeper command line interface?
How we can change Replication factor when Data is on the fly?
Explain the overview of hadoop history breifly?
Can we have multiple entries in the master files?
Define a commodity hardware? Does commodity hardware include ram?
How to configure hadoop to reuse JVM for mappers?
What are the benefits of block transfer?
What is a checkpoint?
Define tasktracker.
Name some companies that use Hadoop?
What is inputformat in hadoop?
What are the modes in which Apache Hadoop run?