What are the problems with Hadoop 1.0?
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How the Client communicates with HDFS?
Where is the Mapper Output stored?
How the HDFS Blocks are replicated?
Is map like a pointer?
Which files are used by the startup and shutdown commands?
Do we need to give a password, even if the key is added in ssh?
Is secondary namenode a substitute to the namenode?
Explain the hadoop configuration files at present?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
Who invented hadoop?
What is Your Cluster size ?
Define a commodity hardware? Does commodity hardware include ram?
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