If a data Node is full how it's identified?
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What are the problems with Hadoop 1.0?
Which data storage components are used by hadoop?
What Mapper does?
What is a Task instance in Hadoop? Where does it run?1
Why the name ‘hadoop’?
What is rack-aware replica placement policy?
Is secondary namenode a substitute to the namenode?
Explain why the name ‘hadoop’?
Explain the basic architecture of Hadoop?
How many maximum jvm can run on a slave node?
What are the steps to submit a Hadoop job?
How is security achieved in Apache Hadoop?
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