Why do we need a password-less ssh in fully distributed environment?
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How does master slave architecture in the hadoop?
Why the name ‘hadoop’?
What is the heartbeat used for?
What is the difference between Hadoop and Traditional RDBMS?
Is a job split into maps?
What is Your Cluster size ?
What is HDFS - Hadoop Distributed File System?
What is inputsplit in hadoop? Explain.
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
Is map like a pointer?
Explain the benefits of block transfer?
What is hbase in hadoop?
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